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LEAD ARSENATE ICSC: 0911
Date of Peer Review: October 1997

Arsenic acid, lead salt
Acid lead arsenate
Dibasic lead arsenate
CAS # 7784-40-9 PbHAsO4
RTECS # CG0980000 Molecular mass: 347.1
UN # 1617
EC # 082-011-00-0
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.

In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION


EXPOSURE
PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!
IN ALL CASES CONSULT A DOCTOR!
Inhalation Cough. Sore throat. See Ingestion.
Local exhaust or breathing protection.
Fresh air, rest. Refer for medical attention.
Skin Redness.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
Eyes Redness. Pain.
Safety spectacles, or eye protection in combination with breathing protection if powder.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion Abdominal pain. Diarrhoea. Drowsiness. Headache. Nausea. Vomiting. Muscular cramp. Constipation. Excitation. Disorientation.
Do not eat, drink, or smoke during work.
Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Do NOT wash away into sewer. Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Personal protection: chemical protection suit including self-contained breathing apparatus.
Do not transport with food and feedstuffs. Marine pollutant.
EU Classification
Symbol: T, N
R: 45-61-23/25-33-50/53-62
S: 53-45-60-61
Note: [E]
UN Classification
UN Hazard Class: 6.1
UN Pack Group: II
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-61GT5-II
NFPA Code: H2; F0; R0;
Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. Well closed.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2004

SEE IMPORTANT INFORMATION ON BACK


LEAD ARSENATE ICSC: 0911
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
ODOURLESS WHITE HEAVY POWDER

CHEMICAL DANGERS:
The substance decomposes on heating above 270 producing toxic fumes including arsenic, lead and their compounds.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: (as Pb_3(AsO_4)_2) 0.15 mg/m as TWA; A1 (confirmed human carcinogen); BEI issued; (ACGIH 2004).
MAK: Carcinogen category: 1; Germ cell mutagen group: 3A; (DFG 2004).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its dust and by ingestion.

INHALATION RISK:
Evaporation at 20C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes, the skin and the respiratory tract. The substance may cause effects on the gastrointestinal tract and nervous system.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the gastrointestinal tract, nervous system, kidneys, liver and blood. This substance is carcinogenic to humans. May cause reproductive toxicity in humans.
PHYSICAL PROPERTIES
Melting point (decomposes): about 280C
Relative density (water = 1): 5.79
Solubility in water: none
ENVIRONMENTAL DATA
The substance is harmful to aquatic organisms. Avoid release to the environment in circumstances different to normal use.
NOTES
Occurs in nature as the mineral schultenite. Depending on the degree of exposure, periodic medical examination is suggested. Gypsine and Soprabel are trade names.
Card has been partly updated in October 2004 and April 2005. See sections Occupational Exposure Limits, EU classification, Emergency Response.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 2004
See Also:
        Lead (UK PID)
        Lead carbonate (ICSC)
        Lead dioxide (ICSC)
        Lead nitrate (ICSC)
        Lead tetroxide (ICSC)
        Lead(II) arsenite (ICSC)