Arsenic acid, lead salt
Acid lead arsenate
Dibasic lead arsenate
PbHAsO4
Molecular mass: 347.1
ICSC # 0911
CAS # 7784-40-9
RTECS # CG0980000
UN # 1617
EC # 082-011-00-0
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Not combustible.
Gives off irritating or toxic fumes (or gases) in a fire.
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In case of fire in the surroundings: use appropriate extinguishing media.
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
AVOID ALL CONTACT!
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IN ALL CASES CONSULT A DOCTOR!
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•Inhalation
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Cough.
Sore throat.
See Ingestion.
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Local exhaust or breathing protection.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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Redness.
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
Refer for medical attention.
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•Eyes
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Redness.
Pain.
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Safety spectacles,
or eye protection in combination with breathing protection if powder.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Abdominal pain.
Diarrhoea.
Drowsiness.
Headache.
Nausea.
Vomiting.
Muscular cramp. Constipation. Excitation. Disorientation.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Induce vomiting (ONLY IN CONSCIOUS PERSONS!).
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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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.
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Provision to contain effluent from fire extinguishing.
Separated from
food and feedstuffs
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Well closed.
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Do not transport with food and feedstuffs.
Marine pollutant.
Note: E
T symbol
N symbol
R: 45-61-23/25-33-50/53-62
S: 53-45-60-61
UN Hazard Class: 6.1
UN Packing Group: II
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Important Data
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Physical State; Appearance:
ODOURLESS
WHITE
HEAVY POWDER
Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating above 270°
producing toxic fumesincluding 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).
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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.
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Physical
Properties
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Melting point (decomposes): about 280°C
Relative density (water = 1): 5.79
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Solubility in water:
none
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Environmental
Data
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The substance is harmful to aquatic organisms.
Avoid release to the environment in circumstances different to normal use.
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N O T E S
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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.
Transport Emergency Card: TEC (R)-61GT5-II
NFPA Code: H2; F0; R0;
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ADDITIONAL INFORMATION
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ICSC: 0911
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LEAD ARSENATE
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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