Zinkdiformiat

Fire extinguishing agents: water, CO2, dry chemical, and foam.

If material on fire or involved in fire: Extinguish fire using agent suitable for type of surrounding fire.

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: Add soda ash. Neutralize with agricultural lime, crushed limestone, or sodium bicarbonate. Adjust pH to neutral (pH 7). Use mechanical dredges or lifts to remove immobilized masses of pollutants and precipitates or greater concentration.

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

If material not on fire and not involved in fire: Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Keep upwind. Avoid breathing vapors. Wash away any material which may have contacted the body with copious amounts of water or soap and water.

Approved respirator, rubber gloves, and safety goggles. (USCG, 1999)

/NIOSH certified respirator/, rubber gloves and safety goggles.

Anaemia results from the excessive absorption of zinc suppressing copper and iron absorption, most likely through competitive binding of intestinal mucosal cells. Unbalanced levels of copper and zinc binding to Cu,Zn-superoxide dismutase has been linked to amyotrophic lateral sclerosis (ALS). Stomach acid dissolves metallic zinc to give corrosive zinc chloride, which can cause damage to the stomach lining. Metal fume fever is thought to be an immune response to inhaled zinc. (L48, L49, A49)

Ingestion of large doses of zinc causes stomach cramps, nausea, and vomiting. Acute inhalation of large amounts of zinc causes metal fume fever, which is characterized by chills, fever, headache, weakness, dryness of the nose and throat, chest pain, and coughing. Dermal contact with zinc results in skin irritation. (L49)

TOXIC BY INGESTION.

When normal stimulated cultured human lymphocytes were pretreated with various soluble zinc salts, there was an increase in the numbers of cells with chromosomal fragmentation, diploidy, dicentrism, and chromatid gaps and breaks. A later study using a similar treatment regimen indicated that zinc induced a dose-dependent decrease in lymphocytic mitotic indices. /Soluble zinc salts/

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; In the Washington D.C. metropolitan area (202) 426-2675. The rule for determining when notification is required is stated in 40 CFR 302.4 (section IV. D.3.b).

Designated as a hazardous substance under section 311(b)(2)(A) of the Federal Water Pollution Control Act and further regulated by the Clean Water Act Amendments of 1977 and 1978. These regulations apply to discharges of this substance.

Toxic pollutant designated pursuant to section 307(a)(1) of the Clean Water Act and is subject to effluent limitations. /Zinc and compounds/

For total recoverable zinc the criterion-to protect freshwater aquatic life ... is 47 ng/l as a 24 hr average ... at hardnesses of 50, 100, and 200 mg/l as CaCO3 the concentration of total recoverable zinc should not exceed 180, 320, 570 ug/l at any time. /Soluble zinc salts/

For total recoverable zinc the criterion to protect saltwater aquatic life ... is 58 ug/l as a 24 hr average and the concentration should not exceed 170 ug/l at any time. /Soluble zinc salts/

(AZ) ARIZONA 5000 ug/l /Zinc/

(MN) MINNESOTA 2000 ug/l /Zinc/

EPA 5000 ug/l /Zinc/

EPA 2000 ug/l /Zinc, Lifetime health advisory/