Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION

PRODUCT NAME

LEAD PHOSPHITE, DIBASIC

NFPA

PRODUCT USE

Heat and light stabiliser for vinyl plastics and chlorinated paraffins; UV screen and
antioxidant for vinyl and chlorinated resins in paints and plastics.

SYNONYMS

H-O5-P-Pb3.1/2H2O, H-O5-P-Pb3.1/2H2O, 2PbO.PbHPO3.1/2H2O, "lead oxide phosphonate,
hemihydrate", "C.I. 77620", "dibasic lead metaphosphate", "lead dibasic phosphatefor CAS
RN: 12141-20-7", "lead dibasic phosphatefor CAS RN: 12141-20-7", H-O5-P-Pb3, H-O5-P-Pb3,
"lead oxide phosphonate", "lead oxide phosphite", Fostab

Section 2 - HAZARDS IDENTIFICATION

CANADIAN WHMIS SYMBOLS

EMERGENCY OVERVIEW

RISK

Danger of cumulative effects.
May cause harm to the unborn child.
Possible risk of impaired fertility.
Harmful: danger of serious damage to health by prolonged exposure through
inhalation, in contact with skin and if swallowed.
Harmful by inhalation and if swallowed.
Flammable.
Very toxic to aquatic organisms, may cause long- term adverse effects in the
aquatic environment.

POTENTIAL HEALTH EFFECTS

ACUTE HEALTH EFFECTS

SWALLOWED

  Accidental ingestion of the material may be harmful; animal experiments indicate that ingestion of less than 150 gram may be fatal or may produce serious damage to the health of the individual.  Considered an unlikely route of entry in commercial/industrial environments.  

EYE

  Although the material is not thought to be an irritant, direct contact with the eye may produce transient discomfort characterized by tearing or conjunctival redness (as with windburn).  

SKIN

  The material is not thought to produce adverse health effects or skin irritation following contact (as classified using animal models). Nevertheless, good hygiene practice requires that exposure be kept to a minimum and that suitable gloves be used in an occupational setting.  Open cuts, abraded or irritated skin should not be exposed to this material.  

INHALED

  The material is not thought to produce respiratory irritation (as classified using animal models). Nevertheless inhalation of the material, especially for prolonged periods, may produce respiratory discomfort and occasionally, distress.  Persons with impaired respiratory function, airway diseases and conditions such as emphysema or chronic bronchitis, may incur further disability if excessive concentrations of particulate are inhaled.  

CHRONIC HEALTH EFFECTS

  Ample evidence exists that developmental disorders are directlycaused by human exposure to the material.  

  Principal routes of exposure are usually by inhalation of generated dust and skin contact/eye contact.  Lead can cross the placenta, and cause miscarriage, stillbirths and birth defects. Exposure before birth can cause mental retardation, behavioral disorders and infant death. Lead can also cause reduced sex drive, impotence, sterility and damage the sperm of males, increasing the potential for birth defects. Periods in women can also be affected.  Lead can accumulate in the skeleton for a very long time.