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ARSENIC ACID (80% in water) ICSC: 1625
Date of Peer Review: October 2005

Arsenic acid hemihydrate
ortho-Arsenic acid solution
CAS # 7778-39-4 H3AsO4
RTECS # CG0700000 Molecular mass: 141.94
UN # 1553
EC Index # 033-005-00-1
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE

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


EXPOSURE
AVOID ALL CONTACT!

Inhalation Cough. Shortness of breath. Further see Ingestion.
Closed system and ventilation.
Fresh air, rest. Refer for medical attention.
Skin Redness. Pain. Burning sensation.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
Eyes Redness. Pain.
Safety spectacles .
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion Sore throat. Nausea. Vomiting. Diarrhoea. Convulsions.
Wash hands before eating. Do not eat, drink, or smoke during work.
Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Rest. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Collect leaking liquid in sealable plastic containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place.
Unbreakable packaging; put breakable packaging into closed unbreakable container. Do not transport with food and feedstuffs.
EU Classification
Symbol: T, N
R: 45-23/25-50/53
S: 53-45-60-61
Note: [A, E]
UN Classification
UN Hazard Class: 6.1
UN Pack Group: I
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-61S1553 or 61GT4-I
Store in an area without drain or sewer access. Separated from strong oxidants, strong bases, metals strong reducing agents, food and feedstuffs. Do not store or transport in aluminium, copper, iron or zinc.
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 2005

SEE IMPORTANT INFORMATION ON BACK
ARSENIC ACID (80% in water) ICSC: 1625
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS VISCOUS HYGROSCOPIC LIQUID

CHEMICAL DANGERS:
The substance decomposes on heating producing toxic and corrosive fumes. The substance is a strong oxidant and reacts with combustible and reducing materials. The substance is a medium strong acid. Attacks metals to produce toxic and flammable arsine (see ICSC 0222).

OCCUPATIONAL EXPOSURE LIMITS:
TLV: (as As) 0.01 mg/m as TWA; A1 (confirmed human carcinogen); BEI issued; (ACGIH 2005).
MAK: Carcinogen category: 1; Germ cell mutagen group: 3A; (DFG 2005).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour, through the skin and by ingestion.

INHALATION RISK:
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20C on spraying.

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 blood, cardiovascular system, gastrointestinal tract, liver and peripheral nervous system. The effects may be delayed. See Notes.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the peripheral nervous system and skin, resulting in polyneuropathy and skin lesions. The substance may have effects on the cardiovascular system. This substance is carcinogenic to humans.
PHYSICAL PROPERTIES
Boiling point: 120C
Solubility in water: at 20C very good
ENVIRONMENTAL DATA
The substance is very toxic to aquatic organisms.
NOTES
Depending on the degree of exposure, periodic medical examination is suggested. The symptoms of acute poisoning do not become manifest until hours. Do NOT take working clothes home.
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 2005