Strontium chromate

203.61

203.82600

232-142-6

2W214M3GS2

0957

3077|3288

DTXSID70872832

C45892

Yellow powder|Yellow monoclinic crystals|Light yellow powder or granular solid

80.26000

-0.47520

Powder

3.9 g/cm³

1200 °C

soluble in boiling water, dilute HCl, dilute CH{3}CO{2}H

PRECAUTIONS FOR "CARCINOGENS": Storage site should be as close as practical to lab in which carcinogens are to be used, so that only small quantities required for ... expt need to be carried. Carcinogens should be kept in only one section of cupboard, an explosion-proof refrigerator or freezer (depending on chemicophysical properties ...) that bears appropriate label. An inventory ... should be kept, showing quantity of carcinogen & date it was acquired ... Facilities for dispensing ... should b

Odorless

pH = 8.5

Rust-inhibiting and corrosion-resistant properties, has good heat and light resistance and low reactivity in highly acid vehicles.|Strong oxidizing agent; specific gravity: 3.895 at 15 °C

It is insoluble in water. Reactivity in Water: Produces hazardous solution.

Salts, Basic

Strong Oxidizing Agent

Oxidizing agents, such as STRONTIUM CHROMATE, can react with reducing agents to generate heat and products that may be gaseous (causing pressurization of closed containers). The products may themselves be capable of further reactions (such as combustion in the air). The chemical reduction of materials in this group can be rapid or even explosive, but often requires initiation (heat, spark, catalyst, addition of a solvent). Explosive mixtures of inorganic oxidizing agents with reducing agents often persist unchanged for long periods if initiation is prevented. Such systems are typically mixtures of solids, but may involve any combination of physical states. Some inorganic oxidizing agents are salts of metals that are soluble in water; dissolution dilutes but does not nullify the oxidizing power of such materials. Organic compounds, in general, have some reducing power and can in principle react with compounds in this class. Actual reactivity varies greatly with the identity of the organic compound. Inorganic oxidizing agents can react violently with active metals, cyanides, esters, and thiocyanates. Avoid contact with water, acids, and bases.

Not flammable (USCG, 1999)

III

5.1

UN3087

45-22-50/53

53-45-60-61

GB3240000

T,N

Separated from food and feedstuffs.

Stability

P201, P202, P260, P261, P264, P270, P271, P272, P273, P280, P281, P301+P312, P302+P352, P304+P340, P308+P313, P311, P314, P321, P330, P333+P313, P363, P391, P403+P233, P405, P501

H302

Generators of waste (equal to or greater than 100 kg/mo) containing this contaminant, EPA hazardous waste number D007, must conform with USEPA regulations in storage, transportation, treatment and disposal of waste. /Chromium/|SRP: Wastewater from contaminant suppression, cleaning of protective clothing/equipment, or contaminated sites should be contained and evaluated for subject chemical or decomposition product concentrations. Concentrations shall be lower than applicable environmental discharge or disposal criteria. Alternatively, pretreatment and/or discharge to a permitted wastewater treatment facility is acceptable only after review by the governing authority and assurance that "pass through" violations will not occur. Due consideration shall be given to remediation worker exposure (inhalation, dermal and ingestion) as well as fate during treatment, transfer and disposal. If it is not practicable to manage the chemical in this fashion, it must be evaluated in accordance with EPA 40 CFR Part 261, specifically Subpart B, in order to determine the appropriate local, state and federal requirements for disposal.|The following wastewater treatment technology has been investigated for chromium: Concentration process: Biological Treatment. /Chromium/|The following wastewater treatment technology has been investigated for chromium: Concentration process: Chemical Precipitation. /Chromium/|For more Disposal Methods (Complete) data for STRONTIUM CHROMATE (14 total), please visit the HSDB record page.

Violent reaction with strong oxidizers, hydrazine. Incompatible with combustible, organic, or other readily oxidizable meterials, such as paper, wood, or other aluminum powder. Attacks plastics and coatings.|Combustible, organic, or other readily oxidizable materials (paper, wood, sulfur, aluminum, plastics, etc.); corrosive to metals. /Chromic acid and chromates/|Hydrazine is decomposed explosively by chromates and chromic anhydride. /Chromates/

DHHS/ATSDR; Toxicological profile for chromium (September 2012).[DHHS/ATSDR; Toxicological profile for chromium (September 2012); Available from, as of February 8, 2016: ww.atsdr.cdc.gov/toxprofiles/tp7.pdf]

Behavior in Fire: Heat stable (USCG, 1999)|Not combustible.

|Danger|H302: Harmful if swallowed [Warning Acute toxicity, oral]|P201, P202, P264, P270, P273, P281, P301+P312, P308+P313, P330, P391, P405, and P501|H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]|Aggregated GHS information provided by 457 companies from 16 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|P201, P202, P260, P261, P264, P270, P271, P272, P273, P280, P281, P301+P312, P302+P352, P304+P340, P308+P313, P311, P314, P321, P330, P333+P313, P363, P391, P403+P233, P405, and P501|P201, P202, P260, P261, P264, P270, P272, P280, P281, P285, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P304+P341, P305+P351+P338, P307+P311, P308+P313, P310, P314, P321, P330, P333+P313, P342+P311, P363, P405, and P501|P201, P202, P261, P264, P270, P272, P280, P281, P285, P301+P312, P302+P352, P304+P341, P305+P351+P338, P308+P313, P310, P321, P330, P333+P313, P342+P311, P363, P405, and P501

Excerpt from ERG Guide 171 [Substances (Low to Moderate Hazard)]: As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. SPILL: Increase, in the downwind direction, as necessary, the isolation distance shown above. FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)

Excerpt from ERG Guide 171 [Substances (Low to Moderate Hazard)]: Do not touch or walk through spilled material. Stop leak if you can do it without risk. Prevent dust cloud. Avoid inhalation of asbestos dust. SMALL DRY SPILL: With clean shovel, place material into clean, dry container and cover loosely; move containers from spill area. SMALL SPILL: Pick up with sand or other non-combustible absorbent material and place into containers for later disposal. LARGE SPILL: Dike far ahead of liquid spill for later disposal. Cover powder spill with plastic sheet or tarp to minimize spreading. Prevent entry into waterways, sewers, basements or confined areas. (ERG, 2016)

Chemical safety goggles. Full-cover work clothes, work gloves, and toxic dust respirator. (USCG, 1999)|Wear protective gloves and clothing to prevent any reasonable probability of skin contact. ... Contact lenses should not be worn when working with this chemical. Eye protection is included in the recommended respiratory protection. Employees should wash immediately with soap when skin is wet or contaminated. Provide emergency showers and eyewash.|Several organizations list assigned protection factors. For supplied air hoods, the value of the assigned protection factors varies from <10 to 2,000 depending on the organization. Workplace protection factors (WPFs) of a supplied air hood were measured during aircraft sanding and painting operations on several types of aircraft to evaluate whether the American National Standard Z88.2 (1992) assigned protection factor of 1,000 was realistic. The primary contaminant during these activities is strontium chromate. Samples collected inside the hood show that employees during sanding and painting operations were not exposed to strontium. The respirator performed adequately. This study is consistent with other simulated and WPF studies in that the ANSI Z88.2 WPF of 1,000 is supported.|Impervious gloves, aprons, and footwear shall be worn at operations where solutions of chromium (VI) may contact the skin. Protective gloves shall be worn at operations where dry compounds of chromium (VI) are handled and may contact the skin. /Cr(VI)/|Protective clothing: Coveralls or other full-body protective clothing shall be worn in areas where there is occupational exposure to chromium (VI). Protective clothing shall be changed at least daily at the end of the shift and more frequently if it should become grossly contaminated. /Cr(VI)/|For more Personal Protective Equipment (PPE) (Complete) data for STRONTIUM CHROMATE (11 total), please visit the HSDB record page.

If material involved in fire: Extinguish fire using agent suitable for type of surrounding fire (Material itself does not burn or burns with difficulty.)|This chemical is a noncombustible solid. Use dry chemical, carbon dioxide, water spray, or foam extinguishers. From a secure, explosion-proof location, use water spray to cool exposed containers, If cooling streams are ineffective (venting sound increases in volume and pitch, tank discolors, or shows any signs of deforming), withdraw immediately to a secure position.|The only respirators recommended for firefighting are self-contained breathing apparatuses that have full face-pieces and are operated in a pressure-demand or other positive-pressure mode.|/When fire fighting wear/ self-contained breathing apparatus, with a full facepiece, operated in pressure-demand or other positive pressure mode. /Chromic acid & chromates/

Environmental considerations: Land Spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. /SRP: If time permits, pits, ponds, lagoons, soak holes, or holding areas should be sealed with an impermeable flexible membrane liner./ Cover solids with a plastic sheet to prevent dissolving in rain or fire fighting water.|Environmental considerations: Water Spill: Add sodium bisulfite (NaHSO3). Neutralize with agricultural lime (CaO), crushed limestone (CaCO3), or sodium bicarbonate (NaHCO3).|Evacuate persons not wearing protective equipment from area of spill or leak until cleanup is complete. Remove all ignition sources. Collect powdered material in the most convenient and safe manner and deposit in sealed containers. Ventilate area after cleanup is complete. It may be necessary to contain and dispose of this chemical as a hazardous waste. If material or contaminated runoff enters waterways, notify downstream users of potentially contaminated waters.|Cr(VI) cmpd in waste sludge are completely removed by redn by carbon at 600 °C. /Chromium VI/|For more Cleanup Methods (Complete) data for STRONTIUM CHROMATE (6 total), please visit the HSDB record page.

If material not involved in fire: Keep material out of water sources and sewers. Build dikes to contain flow as necessary.|Personnel protection: Keep upwind. ... Avoid breathing vapors or dusts. Wash away any material which may have contacted the body with copious amounts of water or soap and water.|SRP: Contaminated protective clothing should be segregated in a manner such that there is no direct personal contact by personnel who handle, dispose, or clean the clothing. The completeness of the cleaning procedures should be considered before the decontaminated protective clothing is returned for reuse by the workers. Contaminated clothing should not be taken home at the end of shift, but should remain at employee's place of work for cleaning.|SRP: Local exhaust ventilation should be applied wherever there is an incidence of point source emissions or dispersion of regulated contaminants in the work area. Ventilation control of the contaminant as close to its point of generation is both the most economical and safest method to minimize personnel exposure to airborne contaminants. Ensure that the local ventilation moves the contaminant away from the worker.|For more Preventive Measures (Complete) data for STRONTIUM CHROMATE (17 total), please visit the HSDB record page.

PRECAUTIONS FOR "CARCINOGENS": Procurement ... of unduly large amt ... should be avoided. To avoid spilling, carcinogens should be transported in securely sealed glass bottles or ampoules, which should themselves be placed inside strong screw-cap or snap-top container that will not open when dropped & will resist attack from the carcinogen. Both bottle & the outside container should be appropriately labelled. ... National post offices, railway companies, road haulage companies & airlines have regulations governing transport of hazardous materials. These authorities should be consulted before ... material is shipped. /Chemical Carcinogens/|PRECAUTIONS FOR "CARCINOGENS": When no regulations exist, the following procedure must be adopted. The carcinogen should be enclosed in a securely sealed, watertight container (primary container), which should be enclosed in a second, unbreakable, leakproof container that will withstand chem attack from the carcinogen (secondary container). The space between primary & secondary container should be filled with absorbent material, which would withstand chem attack from the carcinogen & is sufficient to absorb the entire contents of the primary container in the event of breakage or leakage. Each secondary container should then be enclosed in a strong outer box. The space between the secondary container & the outer box should be filled with an appropriate quantity of shock-absorbent material. Sender should use fastest & most secure form of transport & notify recipient of its departure. If parcel is not received when expected, carrier should be informed so that immediate effort can be made to find it. Traffic schedules should be consulted to avoid ... arrival on weekend or holiday ... /Chemical Carcinogens/

The vapor or dust may irritate the mouth, nose, and air passages.|Chromic acid mist & chromate dusts may cause severe irritation of the nose, throat, bronchial tubes, and lung. /Chromic acid mist & chromate dusts/

Permissible Exposure Limit: Table Z-1 8-hr Time Weighted Avg: 1 mg/cu m. /Chromium metal and insoluble salts, as Cr/|Permissible Exposure Limit: Table Z-1 8-hr Time Weighted Avg: 0.5 mg/cu m. /Chromium(II) compounds, as Cr/|Permissible Exposure Limit: Table Z-1 8-hr Time Weighted Avg: 0.5 mg/cu m. /Chromium(III) compounds, as Cr/|Permissible Exposure Limit: Table Z-2 Acceptable Ceiling Concentration: 1 mg/10 cu m. /Chromic acid and chromates (as CrO3)/

Recommended Exposure Limit: 8-hour Time-Weighted Average: 0.5 mg Cr/cu m. /Chromium metal, chromium(II) and chromium(III) compounds/|Recommended Exposure Limit: 8-hour Time-Weighted Average: 0.0002 mg Cr(VI)/cu m. NIOSH considers all Cr(VI) compounds (including chromic acid, tert-butyl chromate, zinc chromate, and chromyl chloride) to be potential occupational carcinogens. /All hexavalent chromium (Cr(VI) compounds/|NIOSH usually recommends that occupational exposures to carcinogens be limited to the lowest feasible concentration. /Chromic acid and chromates/

Personal protection: chemical protection suit including self-contained breathing apparatus. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.

Separated from food and feedstuffs.

A harmful concentration of airborne particles can be reached quickly when dispersed.

The substance is irritating to the respiratory tract.

Repeated or prolonged contact may cause skin sensitization. Repeated or prolonged inhalation may cause asthma. The substance may have effects on the kidneys. Repeated or prolonged inhalation may cause nasal ulceration. This may result in perforation of the nasal septum. This substance is carcinogenic to humans. Animal tests show that this substance possibly causes toxicity to human reproduction or development.

PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!

Use closed system or ventilation.

Protective gloves. Protective clothing.

Wear safety goggles, face shield or eye protection in combination with breathing protection.

... Substances for which a Federal Register notice has been published that included consideration of the serious health effects, including cancer, from ambient air exposure to the substance. Chromium is included on this list. /Chromium/|Listed as a hazardous air pollutant (HAP) generally known or suspected to cause serious health problems. The Clean Air Act, as amended in 1990, directs EPA to set standards requiring major sources to sharply reduce routine emissions of toxic pollutants. EPA is required to establish and phase in specific performance based standards for all air emission sources that emit one or more of the listed pollutants. Chromium compounds is included on this list. /Chromium compounds/

D007; A waste containing chromium may or may not be characterized as a hazardous waste following testing by the Toxicity Characteristic Leaching Procedure as prescribed by the Resource Conservation and Recovery Act (RCRA) regulations. /Chromium/

Persons in charge of vessels or facilities are required to notify the National Response Center (NRC) immediately, when there is a release of this designated hazardous substance, in an amount equal to or greater than its reportable quantity of 10 lb or 4.54 kg. The toll free number of the NRC is (800) 424-8802. The rule for determining when notification is required is stated in 40 CFR 302.4 (section IV.D.3.b).

D007; A solid waste containing chromium may or may not become characterized as a hazardous waste when subjected to the Toxicity Characteristic Leaching Procedure listed in 40 CFR 261.24, and if so characterized, must be managed as a hazardous waste. /Chromium/

IDENTIFICATION AND USE: Strontium chromate is a yellow powder. It is used as a corrosion inhibitor in pigments; in electrochemical processes to control sulfate concn of solns; as a colorant in polyvinyl chloride resins; and in pyrotechnics. HUMAN EXPOSURE AND TOXICITY: If ingested, violent gastroenteritis, severe circulatory collapse and toxic nephritis may ensue. None of the results showed statistically significant differences that would suggest an excess risk for malignant neoplasms, particularly lung cancer, among workers engaged in the manufacture of chromate pigment in Japan. ANIMAL STUDIES: In groups of 22-34 rats that received intramuscular implantations of various chromium cmpd, the following incidences of implantation-site tumors (type unspecified) were observed after 27 months: strontium chromate, 15/33 (20 alive at one yr); none of 35 control rats given implants of sheep fat alone developed local tumors (30 alive at 1 year). In experiments lasting 27 mo rats gave the following number of tumors at site of intrapleural injection of strontium chromate, 17/28 (nine alive at one yr); none of 34 control rats showed tumors. In other experiment, 15 male, bred, 12-week-old rats were used. A pellet of strontium chromate were inserted into the bronchus of the rats. The rats were sacrificed 9 months after the pellet was inserted. Of the 15 rats, 1 rat had a lesion of squamous cell carcinoma, 7 rats had carcinoma in situ or dysplasia, 8 rats had squamous metaplasia, and 5 rats had goblet cell hyperplasia. Twenty-one chromium containing materials were examined for carcinogenic activity in a two year study using an intrabronchial pellet implantation system whereby pellets loaded with test material were surgically implanted into the lower left bronchus of rats. Two of these were groups receiving different samples of strontium chromate which gave 43/99 and 62/99 tumors. Strontium chromate (0-0.8 ug/plate) was mutagenic in Salmonella typhimurium TA100 in the presence or absence of a metabolic activation system and at 0.1 ug/mL sister chromatid exchanges were observed in cultured Chinese hamster fibroblasts.

LD50 Rat oral 3118 mg/kg|LD50 Rat intratracheal 16,600 mg/kg

According to the 2012 TSCA Inventory Update Reporting data, 2 reporting facilities estimate the number of persons reasonably likely to be exposed during the manufacturing, processing, or use of strontium chromate (7789-06-2) in the United States may be as low as 100-499 workers and as high as 1000-9999 workers per plant; the data may be greatly underestimated due to confidential business information (CBI) or unknown values(1).|NIOSH (NOES Survey 1981-1983) has statistically estimated that 38,744 workers (2,855 of these are female) were potentially exposed to strontium chromate in the US(1). Occupational exposure to strontium chromate may occur through inhalation of dust and particulates and dermal contact with this compound at workplaces where strontium chromate is produced or used(2).

The mean chromium level in the urine of 5 production workers working in a pigment plant making strontium chromate was as follows in nmol/mmol creatinine(1): Friday pre-shift: 227 (range 118-360), Friday post-shift 246 (range 121-413), Monday pre-shift: 224 (range 99-444). The mean chromium level in the blood of 5 production workers working in a pigment plant making strontium chromate was as follows in nmol/L(1): Friday pre-shift: 1962 (range 387-4120), Monday pre-shift: 1944 (range 570-4160)(1). Monitoring of exposure of strontium chromate to 21 workers employed in spray painting in the aeronautical industry found chromium levels of 1.38 to 17.10 ug/cu m(2); strontium concentrations in the paint-spray booth was 22.90 ug/cu m(2); control workers in paint division area had chromium levels of 0.02-0.07 ug/cu m(2) and a strontium level og 0.07 ug/cu m(2).

A survey of occupational exposure to hexavalent chromium in chromate pigment production was undertaken in factories producing lead chromate (PbCrO4) and strontium chromate (SrCrO4). ...Exceptionally high levels of chromium in blood (387-4160 nmol/L) and urine (41-1250 nmol /per/ nmol creatinine) as well as skin and nasal lesions, were discovered amongst the workforce at the strontium chromate plant. These contrasted with occupationally unexposed levels of less than 20 nmol/L and less than 1 nmol /per/ nmol creatinine, respectively, and led to the continuation of the biological monitoring program. ...A steady elimination of chromium from whole blood with a half-life of approximately 24 days was found. This elimination rate was confirmed over a 14 day period when the workforce were completely removed from exposure.

INHALATION: Irritating to mucous membranes. SKIN: Repeated skin contact can cause eczematous dermatitis, with edema and ulceration. INGESTION: Dizziness, intense thirst, abdominal pain, vomiting, shock and oliguria or anuria. (USCG, 1999)|Carcinogens

INHALATION: Remove to fresh air. EYES: Irrigate with running water for 15 minutes. Consult a physician. SKIN: Wash thoroughly with soap and water. INGESTION: Induce vomiting, give demulcents and fluids. (USCG, 1999)

Fresh air, rest. Refer for medical attention.

Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR if necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. /Poisons A and B/|Basic treatment: Establish a patent airway (oropharyngeal or nasopharyngeal airway, if needed). Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if needed. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... . Monitor for shock and treat if necessary ... . Anticipate seizures and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with 0.9% saline (NS) during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 mL/kg up to 200 mL of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool ... . Cover skin burns with dry sterile dressings after decontamination ... . /Poisons A and B/|Advanced treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious, has severe pulmonary edema, or is in severe respiratory distress. Positive-pressure ventilation techniques with a bag-valve-mask device may be beneficial. Consider drug therapy for pulmonary edema ... . Consider administering a beta agonist such as albuterol for severe bronchospasm ... . Monitor cardiac rhythm and treat arrhythmias as necessary ... . Start IV administration of D5W TKO. Use 0.9% saline (NS) or lactated Ringer's (LR) if signs of hypovolemia are present. For hypotension with signs of hypovolemia, administer fluid cautiously. Watch for signs of fluid overload ... . Treat seizures with diazepam (Valium) or lorazepam (Ativan) ... . Use proparacaine hydrochloride to assist eye irrigation ... . /Poisons A and B/|/SRP:/ Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR as necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. /Inorganic acids and related compounds/|For more Antidote and Emergency Treatment (Complete) data for STRONTIUM CHROMATE (6 total), please visit the HSDB record page.

/SIGNS AND SYMPTOMS/ ... If ingested, violent gastroenteritis, severe circulatory collapse & toxic nephritis may ensue.|/SIGNS AND SYMPTOMS/ Corrosive because of its oxidizing potency.|/EPIDEMIOLOGY STUDIES/ In 1975, five manufacturers of chromate pigment in Japan were examined in a study of the carcinogenicity of chromates. These companies were producing lead chromate, zinc chromate, molybdate orange and/or strontium chromate. The current study covers a cohort of 666 workers involved in the manufacture of chromate pigment for at least 1 year between 1950 and 1975. The workers were followed up for 15-40 years, until 1989. Many previous reports have found an excess lung cancer risk among workers involved in the manufacture of chromate pigments and chromate chemicals. In the current study, subjects were classified on the basis of years worked, years of observation, characteristics of company, type of work engaged in for the longest period of time, and involvement in the manufacture of zinc chromate. Mortality was compared with that of all Japanese males by means of the person-year method. The route of exposure was primarily inhalation through the respiratory system. None of the results showed statistically significant differences that would suggest an excess risk for malignant neoplasms, particularly lung cancer, among workers engaged in the manufacture of chromate pigment in Japan.|/BIOMONITORING/ A method for risk assessment of occupational exposure to strontium chromate (SrCrO4) in painters employed in the aeronautical industry is described. Assessment was made of 21 male workers of the painting division, potentially exposed to SrCrO4 (exposed), and 20 male workers of the tests and warehouse divisions (controls). All participants completed a questionnaire about work tasks, lifestyle habits, hobbies and diet. Personal active sampling for the determination of Cr and Sr was performed both during paint-spraying and during other operations in the painting division area. On the same day as environmental sampling, urine samples were collected at the beginning and end of the work shift in exposed workers to determine urinary chromium (CrU), and only at the end of the shift in controls. In the second half of the shift, a blood sample was taken in 10 exposed workers and 10 controls, to determine Cr in plasma (CrP) and in red blood cells (CrRBC). During paint-spraying, Cr concentrations ranged between 1.38 and 17.10 ug/cu m, versus 0.02 to 0.07 ug/cu m in the painting division area, while the Sr concentration was 22.90 ug/cu m in the paint-spray booth versus 0.07 ug/cu m in the painting division area. CrU at the end of the work shift, CrP and CrRBC, did not show significant differences between exposed workers and controls. Moreover, in exposed workers there were no differences between CrU measured at the beginning and at the end of the work shift. This approach, consisting of simultaneous environmental and biological monitoring, suggested no absorption of chromium in the painters thanks to the efficacy of the technical, organizational and personal protection measures adopted. However, the evident exposure to high levels of SrCrO4 during paint-spraying highlights how absolutely essential it is to ensure strict compliance with all the preventive measures foreseen by the EU and national regulations for occupational exposure to carcinogens.|For more Human Toxicity Excerpts (Complete) data for STRONTIUM CHROMATE (7 total), please visit the HSDB record page.

strontium chromate

The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

Cough. Sore throat. Wheezing.

Redness.

Redness.

Strontium chromate is available at a purity of 99%.|80 mesh, 99% pure grade ... pigment grade.

Paint and coating manufacturing|Chromic acid (H2CrO4), strontium salt (1:1): ACTIVE|Strontium yellow ... /is/ a pigment. Originally it was a chromate of strontium, SrCrO4, but a more durable pigment is now sold under /strontium yellow/.

Health Hazards -> Carcinogens