ZB 500

313.79

429.93700

238-763-9

21LB2V459E

9155

DTXSID6091554

White, amorphous powder|White granular

2840200000

138

Zinc borate appears as a white powder of variable composition. (typically 45% ZnO, 34% B2O3 and 20% H2O). Slightly soluble in water. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. It is used as a fungus and mildew inhibitor, to fire proof textiles, and for other uses.

3.64 g/cm³

980 °C

0.3% in water at 20 deg C

Zinc borate 2ZnO3B2O3·3.5H2O has an acute oral toxicity in rats LD50 >10000 mg/kg body weight and acute dermal toxicity in rabbits LD50>10000 mg/kg body weight. It is not a skin irritant and gives a negative response in the Ames mutagenicity test (Kirk-Othmer, 1994).

None

pH = 7.6 (in deionized water)

White amorphous powder; MF: 3ZnO.2B2O3; MW: 383.466; Density/Specific gravity: 3.64 g/cu cm; Slightly sol in cold water; Soluble in dilute acid. 27043-84-1 /Zinc borate; 27043-84-1/|White crystals; MF: 2ZnO.3B2O3.3.5H20; MW: 434.69; MP: 980 °C; density = 4.22 g/cu cm; insoluble in water. 12513-27-8 /Zinc borate hemiheptahydrate/|White powder; MF: 2ZnO.3B2O3.5H20; MW: 461.753; Density: 3.64 g/cu cm; solubility in water = 0.007 g/100 g water at 25 °C; slightly soluble in hydrochloric acid. 12536-65-2 /Zinc pentahydrate/|White hygroscopic solid; MF: ZnO(B2O3)2.6H2O; MW: 429.305; MP: 100 °C; Density: 2.57 g/cu cm; very soluble in water. 13517-27-6 /Zinc hexahydrate/

Slightly soluble in water.

Non-Redox-Active Inorganic Compounds

ZINC BORATE has weak oxidizing or reducing powers. Slightly soluble in water. Not water-reactive.

II

8

2734

S26-S36/37/39-S45

P264, P280, P305+P351+P338, P33, P313

H319

SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational harm/injury/toxicity or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal and plant life; and conformance with environmental and public health regulations.

Zinc and Health. Current Bibliographies in Medicine 98-3. Public Services Division/National Library of Medicine. 3619 citations January, 1990-June, 1998.[Available from, as of November 2, 1998: http://www.nlm.nih.gov/archive/20040831/pubs/cbm/zinc.html]|USEPA; Ambient Water Quality Criteria Doc: Zinc (1980) EPA 400/5-80-079|USEPA; Ambient Water Quality Criteria Doc: Zinc (1987) EPA 400/5-87-003|Arvidson, B. A Review of Axonal Transport of Metals. Toxicology 88: 1-14 (19994) Recent findings regarding axonal transport of metals, including zinc.|For more Special Reports (Complete) data for ZINC BORATE (6 total), please visit the HSDB record page.

|Warning|H361 (17.74%): Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]|P201, P202, P273, P281, P308+P313, P391, P405, and P501|Aggregated GHS information provided by 335 companies from 17 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|Danger|H360FD: May damage fertility; May damage the unborn child [Danger Reproductive toxicity]|P201, P202, P281, P308+P313, P405, and P501|H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]|P264, P280, P305+P351+P338, and P337+P313

Dust mask; goggles or face shield; protective gloves (USCG, 1999)|/NIOSH certified respirator/; goggles or face shield; protective gloves

Nonflammable

If material involved in fire: extingiush fire using agent suitable for type of surrounding fire. Material itself does not burn or burns with difficulty.

Environmental considerations: Land spill: Dig a pit, pond, lagoon, or holding area to contain liquid or solid material. /SRP: If time permits, pits, ponds, lagoons, soak holes, or holding areas should be contained with a flexible impermeable membrane liner./ Cover solids with a plastic sheet to prevent dissolving in rain or fire fighting water.|Environmental considerations: Water spill: Neutralize with agricultural lime (CaO), crushed limestone (CaCO3), or sodium bicarbonate (NaHCO3). Add soda ash (Na2CO3). Adjust pH to neutral (pH 7). Use mechanical dredges or lifts to remove immobilized masses of pollutants and precipitates.

If material not involved in fire: Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Keep upwind. Wear appropriate chemical protective gloves, boots and goggles. Avoid breathing vapors or dust. Wash away any material which may have contacted the body with copious amounts of water or soap and water.|SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.

Zinc borate was shown to be an eye irritant producing mild conjunctivitis in albino rabbits.|Inhalation of dust may irritate nose & throat. ... Contact with eyes or skin causes irritation.

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).

LD50 Rabbits (male and female albino rabbits) dermal greater than 10 g/kg|LD50 Rat(male) oral greater than 10 g/kg

/BIRDS and MAMMALS/ Avian acute oral study indicated that the bobwhite quail (Colinus virginianus), based on signs of toxicity, mortality, reduction of body weight gain and feed consumption was characterized as practically non-toxic to bobwhite quail. The LD50 was determined to be >2250 mg/kg, the highest dosage tested.|/BIRDS and MAMMALS/ In avian dietary studies, the LC50 value of zinc borate in the mallard ducklings (Anas platyrhynchos) is estimated to be greater than 5,620 ppm. No mortality occurred in either the control or treated groups. A slight reduction in body weight was observed at the 6,520 ppm concentration during the exposure period. There was no effect on feed consumption at any concentration tested.|/AQUATIC SPECIES/ The acute toxicity of zinc borate to bluegill sunfish (Lepomis macrochirus) was tested under static conditions at mean concentrations of 94, 137, 182, 248, and 335 ppm. The 96 hr LC50 for bluegill sunfish was shown to be greater than 335 ppm. These results indicate that zinc borate is practically nontoxic to the fish species tested.

According to the 2006 TSCA Inventory Update Reporting data, the number of persons reasonably likely to be exposed in the industrial manufacturing, processing, and use of zinc borate is 100 to 999; the data may be greatly underestimated(1).|NIOSH (NOES Survey 1981-1983) has statistically estimated that 20,343 workers (4,266 of these were female) were potentially exposed to zinc borate in the US(1). Occupational exposure to zinc borate may occur through inhalation and dermal contact with this compound at workplaces where zinc borate is produced or used(SRC).

Inhalation of dust may irritate nose and throat. Ingestion can cause gastrointestinal disturbances, convulsions, central nervous depressions, skin eruptions, shock, and death. Contact with eyes or skin causes irritation. (USCG, 1999)

INHALATION: move to fresh air. INGESTION: administer gastric lavage with warm tap water; saline catharsis; consult physician. EYES or SKIN: flush with water. (USCG, 1999)

Immediate first aid: Remove patient from contact with the material. 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. /Zinc and related compounds/|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 necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... . Anticipate seizures 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. 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. Administer activated charcoal ... . /Zinc and related compounds/|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 if 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 ... . Treat seizures with diazepam or lorazepam ... . Use proparacaine, hydrochloride to assist eye irrigation ... . /Zinc and related compounds/|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. /Boron and Related Compounds/|For more Antidote and Emergency Treatment (Complete) data for ZINC BORATE (6 total), please visit the HSDB record page.

Typical composition: zinc oxide 45%, borate 34%. May have 20% water of hydration.|Commercial grades contain 45-52% zinc oxide, 29-35% boric anhydride.|Powder, 99.95+% grade, ceramic grade|Borogard ZB (U.S. Borax, Inc), Zinc borate 100%.|For more Formulations/Preparations (Complete) data for ZINC BORATE (7 total), please visit the HSDB record page.

All other basic inorganic chemical manufacturing|Boric acid, zinc salt: ACTIVE|Zinc borates can be used alone, although it is not as effective in increasing flame resistance as when used in combination with other halogen synergists such as antimony oxide ... also used with alumina trihydrate to form a glass-like substance that inhibits polymer degradation /Zinc borates/

Cosmetics -> Antimicrobial