Agent Name

Dibasic lead phosphite

CAS Number

1344-40-7

Formula

H-O5-P-Pb3.1/2H2-O

Major Category

Metals

Synonyms

C.I. 77620; Dibasic lead metaphosphate; Lead dibasic phosphite; Lead hydroxide oxide phosphite (Pb3(OH)O(PO3)), hydrate (2:1); Lead oxide phosphonate, hemihydrate; Lead phosphite, dibasic; [ChemIDplus] Lead oxide phosphonate; [Chem Service MSDS] UN2989

Category

Lead Compounds, Inorganic

Description

White solid; Insoluble in water; [CAMEO] Pale yellow solid; [IARC] White crystalline solid; Odorless; [Chem Service MSDS]

Sources/Uses

Possesses the property of preventing materials from ultraviolet light degradation; Other lead compounds with this property are used in PVC materials with applications in the construction industry; [IARC]

Comments

Self reactive; May ignite and burn vigorously on exposure to heat or sparks; [CAMEO] See "Lead(II) phosphate" and "Potassium phosphite." See "Lead" and linked occupational diseases.

Exposure Assessment
BEI

Lead in blood = 200 ug/L (20 ug/100 ml); sampling time not critical; [ACGIH]

TLV (ACGIH)

0.05 mg/m3, as Pb

PEL (OSHA)

0.05 mg/m3, as Pb

Adverse Effects
Anemia

Anemia, Hemolytic

Neurotoxin

Motor Neuropathy

Hepatotoxin

Hepatotoxin, Secondary

Nephrotoxin

Yes

Reproductive Toxin

Yes

IARC Carcinogen

Probable Carcinogen

NTP Carcinogen

Anticipated Human Carcinogen

ACGIH Carcinogen

Confirmed Animal

Links to Other NLM Databases
Toxicity Information

Search TOXNET

Chemical Information

Search ChemIDplus

Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent: