Chromium(III) acetate

229.12800

228.98000

241-562-9

7W6DL7H397

3077

DTXSID4020327

Blue-green powder

78.90000

0.04140

Chromic acetate appears as a grayish green to bluish green powder. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. It is used in tanning and in textile dyeing.

1.28 g/cm3

>400 deg C (OECD Guideline 102 (Melting point / Melting Range) resp. EU A.1 (melting / freezing temperature))

117.1ºC at 760 mmHg

40ºC

H2O: slightly soluble

Odorless

Trivalent chromium compounds are amphoteric

Grayish-green powder or blueish-green pasty mass /Chromium(III) acetate monohydrate/|Blue-violet needles; readily soluble in water; partially hydrolyzed in water giving a solution which is blue under incident light and red under transmitted light; solvolyzed by alcohol /Chromium(III) acetate hexahydrate/|Gray-green powder or violet plates; slightly soluble in water; practically insoluble in alcohol /Chromium(III) acetate monohydrate/|Violet crystalline powder; freely soluble in water /Chromium(III) aceate, basic/|For more Other Experimental Properties (Complete) data for CHROMIUM(III) ACETATE (7 total), please visit the HSDB record page.

Water soluble.

Salts, Basic

CHROMIC ACETATE gives aqueous solutions that are basic (neutralize acids). These neutralizations generate only a little heat. Neither a strong reducing agent nor oxidizing agent, but can serve as both.

Not flammable (USCG, 1999)

UN 9101

R36/37/38

26-36/37/39

P261, P264, P272, P280, P302+P352, P305+P351+P338, P321, P332+P313, P333+P313, P337+P313, P362, P363, P501

H315

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 CHROMIUM(III) ACETATE (7 total), please visit the HSDB record page.

Combustible, organic, or other readily oxidizable materials (paper, wood, sulfur, aluminum, plastics, etc.); corrosive to metals. /Chromic acid and chromates/

Not Classified| |Warning|H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P272, P273, P280, P302+P352, P305+P351+P338, P321, P332+P313, P333+P313, P337+P313, P362, P363, and P501|The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.

Rubber gloves, safety glasses, laboratory coat. If powder becomes airborne, wear approved mechanical filter respirator. (USCG, 1999)|Respirator Recommendations: Up to 2.5 mg/cu m: /Chromium(II) compounds (as Cr); Chromium(III) compounds (as Cr)/[Table#2630]|Respirator Recommendations: Up to 5 mg/cu m: /Chromium(II) compounds (as Cr); Chromium (III) compounds (as Cr)/[Table#2631]|Respirator Recommendations: Up to 12.5 mg/cu m: /Chromium(II) compounds (as Cr); Chromium (III) compounds (as Cr)/[Table#2632]|Respirator Recommendations: Up to 25 mg/cu m: /Chromium(II) compounds (as Cr); Chromium (III) compounds (as Cr)/[Table#2633]|For more Personal Protective Equipment (PPE) (Complete) data for CHROMIUM(III) ACETATE (6 total), please visit the HSDB record page.

Respiratory protection from soluble chromic and chromous salts while fighting fires: self-contained breathing apparatus with a full facepiece operated in pressure-demand or other positive pressure mode. /Sol chromic & chromous salts/|/When fire fighting wear/ self-contained breathing apparatus, with a full facepiece, operated in pressure-demand or other positive pressure mode. /Chromic acid & chromates/

Work clothing that becomes wet or significantly contaminated should be removed and replaced. /Chromic acid and cromates; Chromium(II) compounds (as Cr); Chromium(III) compounds/|The worker should immediately wash the skin when it becomes contaminated. /Chromic acid and chromates; Chromium(II) compounds (as Cr); Chromium(III) compounds/|Workers whose clothing may have become contaminated should change into uncontaminated clothing before leaving the work premises. /Chromic acid and cromates/|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.

Chromic acid mist & chromate dusts may cause severe irritation of the nose, throat, bronchial tubes, and lung. /Chromic acid mist & chromate dusts/|Eczematous dermatitis due to trivalent chromium compounds has been reported. /Trivalent chromium compounds/

Permissible Exposure Limit: Table Z-1 8-hr Time Weighted Avg: 0.5 mg/cu m. /Chromium(III) compounds, as Cr/

Recommended Exposure Limit: 10-hour Time-Weighted Average: 0.5 mg/cu m. /Chromium(III) compounds (as Cr)/

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 1000 lb or 454 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: Chromium (III) acetate is a blue-violet crystalline powder. It is not registered for current pesticide use in the U.S., but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses. It is used in dyeing; in tanning; in hardening photographic emulsions; as oxidation catalyst; to improve light stability and dye affinity of textiles and polymers; and in catalyst for polymerization of olefins. HUMAN EXPOSURE AND TOXICITY: There is no data. ANIMAL STUDIES: In studies in which chromium (III) acetate was administered by the oral route to mice and rats and by intrapleural and intramuscular administration to rats, the incidence of tumors was not increased. Salmonella typhimurium strain TA102, particularly suited to the detection of oxidative mutagens, was the most sensitive out of 9 strains of S. typhimurium his- in revealing the mutagenicity of Cr(VI) compounds. The rank of sensitivity was the following: TA102, TA100, TA97, TA92, TA1978, TA98, TA1538 and TA1537, TA1535 being the only insensitive strain. Cr(III) compounds (chromic acetate, chromic nitrate and chromic potassium sulfate) were totally inactive with all strains.

LD50 Cartworth-Wistar Male Rat oral 2365 mg/kg/day chromium(III) acetate.

Using OECD Guideline 121 (Estimation of the Adsorption Coefficient (Koc) on Soil and on Sewage Sludge using High Performance Liquid Chromatography (HPLC)), chromium (III) acetate was estimated to have a log Koc of <1.5 (Koc of 31.6)(1). According to a classification scheme(2), this estimated Koc value suggests that chromium (III) acetate is expected to have very high mobility in soil.|Chromium (VI) anions can be considered to be mobile in sediments in the environment, except possibly under highly acidic conditions(1). In contrast chromium (III), the oxidation state in which chromium is present in acetic acid, chromium salt, appears to be much more strongly adsorbed to soils and sediments than chromium (VI)(1). The adsorption of chromium (III) onto soil follows the pattern typical of cationic metals and increases with increasing pH (lowering pH results in increased protonation of the adsorbent leading to fewer adsorption sites for the cationic metal) and the organic matter content of the soil and decreases when other competing (metal) cations are present(1). Certain dissolved organic ligands may also reduce the adsorption of chromium (III) to the solid phase by forming complexes which enhance the solubility of chromium (III) in the aqueous phase(1).

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 Acetic acid, chromium(3+) salt (3:1) (1066-30-4) may be as low as <10 workers up to the range of 25-49 workers per plant; the data may be greatly underestimated due to confidential business information (CBI) or unknown values(1).

The commercial material, usually sold a a concentrated solution of the basic acetate, Cr(OH)(C2H3O2)2, contains Na acetate or Na2SO4 impurities.

INHALATION: Irritating. It can produce ulcerations in the respiratory system, perforation of the nasal septum, pneumonitis and bronchial carcinoma. EYES: Irritation. SKIN: May cause dermatitis to exposed skin. Can produce ulcerations and sensitizing reactions. (USCG, 1999)

Get medical aid. INHALATION: Move to fresh air. EYES: Wash with large amounts of water, get medical attention. SKIN: Wash with large amounts of water. (USCG, 1999)

/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/|/SRP:/ Basic treatment: Establish a patent airway (oropharyngeal or nasopharyngeal airway, if needed). Suction if necessary. Watch for signs of respiratory insufficiency and assist respirations 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 ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with 0.9% saline (NS) during transport ... . Do not use emetics. Activated charcoal is not effective. 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 ... . Do not attempt to neutralize because of exothermic reaction. Cover skin burns with dry, sterile dressings after decontamination ... . /Inorganic acids and related compounds/|/SRP:/ 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. Early intubation, at the first sign of upper airway obstruction, may be necessary. 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 /SRP: "To keep open", minimal flow rate/. 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. Consider vasopressors if patient is hypotensive with a normal fluid volume. Watch for signs of fluid overload ... . Use proparacaine hydrochloride to assist eye irrigation ... . /Inorganic acids and related compounds/|Emergency and supportive measures. 1. Inhalation. Give supplemental oxygen. Treat wheezing and monitor the victim closely for delayed-onset noncardiogenic pulmonary edema. Delays in the onset of pulmonary edema of up to 72 hours have been reported after inhalation of concentrated solutions of chromic acid. 2. Ingestion. a. Diluted immediately with water. treat hemorrhagic gastroenteritis with aggressive fluid and blood replacement. Consider early endoscopy to assess the extent of esophageal or gastric injury. b. Treat hemoglobinuria resulting from hemolysis with alkaline diuresis as far rhabdomyolysis. Treat methemoglobinemia if it occurs. /Chromium/|For more Antidote and Emergency Treatment (Complete) data for CHROMIUM(III) ACETATE (7 total), please visit the HSDB record page.

The commercial material, usually sold as a concentrated solution of the basic acetate.|50% solution grade; powder grade

Oil and gas drilling, extraction, and support activities|Acetic acid, chromium(3+) salt (3:1): ACTIVE