ICSC 0911 - LEAD ARSENATE

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LEAD ARSENATE

ICSC: 0911
_{October 1997}

Arsenic acid, lead salt
Acid lead arsenate
Dibasic lead arsenate

CAS No: 7784-40-9
RTECS No: CG0980000
UN No: 1617
EC No: 082-011-00-0

PbHAsO₄
Molecular mass: 347.1

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.	T Symbol N Symbol R: 45-61-23/25-33-50/53-62 S: 53-45-60-61 Note: E UN Hazard Class: 6.1 UN Pack Group: II	Do not transport with food and feedstuffs. Marine pollutant.

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.

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 Pb₃(AsO₄)₂) 0.15 mg/m³ 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 20°C 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	ENVIRONMENTAL DATA
Melting point (decomposes): about 280°C Relative density (water = 1): 5.79 Solubility in water: none	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.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004

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