dioxidoarsinic acid: lead(+2) cation Property

CAS DataBase Reference

7645-25-2

EPA Substance Registry System

Lead arsenate (7645-25-2)

Safety

RIDADR 

1617

HazardClass 

6.1(a)

PackingGroup 

II

Toxicity

LD50 orl-rat: 100 mg/kg AFDOAQ 15,122,51

Hazard and Precautionary Statements (GHS)

dioxidoarsinic acid: lead(+2) cation Chemical Properties,Usage,Production

Chemical Properties

Lead arsenate is an odorless, heavy, white powder, or crystals.

Definition

ChEBI: Lead arsenate is an inorganic lead salt composed from lead(2+) and arsenate dianion. It was widely used in the United States in the 1950's as an insecticide to control pests in fruit orchards, specifically apples and cherries. It has a role as an insecticide, a plant growth regulator and a rodenticide. It contains a lead(2+) and an arsenate(2-).

Safety Profile

Confirmed human carcinogen. Poison by ingestion. See also LEAD COMPOUNDS and ARSENIC COMPOUNDS. When heated to decomposition it emits very toxic fumes of lead and arsenic.

Potential Exposure

Used as an insecticide, herbicide, and in manufacture of drugs; veterinary tapeworm medicine. Incompatibilities: Violent reactions occur from contact with oxidizers, chemically active metals; strong acids. Acids and acid mists cause the release of arsine, a deadly gas. Decomposes above 270C forming toxic fumes including arsenic and lead compounds

Shipping

UN1617 Lead arsenates, Hazard Class: 6.1; Labels: 6.1-Poisonous materials

Incompatibilities

Used as an insecticide, herbicide, and in manufacture of drugs; veterinary tapeworm medicine. Incompatibilities: Violent reactions occur from contact with oxidizers, chemically active metals; strong acids. Acids and acid mists cause the release of arsine, a deadly gas. Decomposes above 270C forming toxic fumes including arsenic and lead compounds

Waste Disposal

Long- term storage in large, weatherproof, and sift-proof storage bins or silos; may be disposed of by conversion to soluble salt, such as chloride, precipitation as sulfide and return to supplier