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ARSENIC ACID (80% in water)
ICSC: 1625
Peer-Review Status: 18.10.2005 Validated
Arsenic acid hemihydrate
ortho-Arsenic acid solution 
CAS #: 7778-39-4 RTECS #: CG0700000
UN #: 1553
EC #: 033-005-00-1
EINECS #: 231-901-9
    Formula: H3AsO4
Molecular mass: 141.94

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.  Use closed system or 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.  Wear safety spectacles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
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 and spilled liquid in sealable plastic containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.  Unbreakable packaging.
Put breakable packaging into closed unbreakable container.
Do not transport with food and feedstuffs. 
EC 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 
GHS Classification
 

EMERGENCY RESPONSE SAFE 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 and food and feedstuffs. Do NOT store or transport in containers made from aluminium, copper, iron or zinc. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS VISCOUS HYGROSCOPIC LIQUID. 

Physical dangers
 

Chemical dangers
Decomposes on heating. This produces toxic and corrosive fumes. The substance is a strong oxidant. It reacts with combustible and reducing materials. The substance is a medium strong acid. Attacks metals. This produces toxic and flammable arsine (see ICSC 0222). 

Occupational exposure limits
TLV (as As): 0.01mg/m³ 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 20°C on spraying. 

Effects of short-term exposure
The substance is irritating to the eyes, skin and 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. This may result in polyneuropathy and skin lesions. The substance may have effects on the cardiovascular system. This substance is carcinogenic to humans. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 120°C
Solubility in water at 20°C: very good 
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
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations