|ARSENIC ACID (80% in water)||ICSC: 1625 (April 2017)|
|Arsenic acid hemihydrate
ortho-Arsenic acid solution
| CAS #: 7778-39-4
| UN #: 1553
|EC Number: 231-901-9
|ACUTE HAZARDS||PREVENTION||FIRE FIGHTING|
|FIRE & EXPLOSION||In case of fire in the surroundings, use appropriate extinguishing media.|
|AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!|
|Inhalation||Cough. Burning sensation. Sore throat. Shortness of breath. Further see Ingestion.||Use closed system or ventilation.||Fresh air, rest. Refer for medical attention.|
|Skin||Redness. Pain. Skin burns.||Protective gloves. Protective clothing.||Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .|
|Eyes||Redness. Pain. Burns.||Wear face shield.||First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.|
|Ingestion||Metallic taste. Sore throat. Severe thirst. Abdominal pain. Nausea. Vomiting. Diarrhoea. Muscle cramps. Convulsions. Increased heart rate. Shock or collapse. Paralysis.||Wash hands before eating. Do not eat, drink, or smoke during work.||Rinse mouth. Refer for medical attention .|
|SPILLAGE DISPOSAL||CLASSIFICATION & 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.||
According to UN GHS Criteria
DANGERToxic if swallowed or if inhaled
Harmful in contact with skin
Causes severe skin burns and eye damage
May cause cancer
Causes damage to organs
Causes damage to organs through prolonged or repeated exposure
Very toxic to aquatic life with long lasting effects
|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.|
Put breakable packaging into closed unbreakable container.
Do not transport with food and feedstuffs.
|ARSENIC ACID (80% in water)||ICSC: 1625|
|PHYSICAL & CHEMICAL INFORMATION|
Physical State; Appearance
|EXPOSURE & HEALTH EFFECTS|
Routes of exposure
Effects of short-term exposure
Effects of long-term or repeated exposure
|OCCUPATIONAL EXPOSURE LIMITS|
TLV: (as As): 0.01 mg/m3, as TWA; A1 (confirmed human carcinogen); BEI issued.
MAK: skin absorption (H); carcinogen category: 1; germ cell mutagen group: 3A.
EU-OEL: (inhalable fraction): 0.01 mg/m3 as TWA; (see Notes)
|The substance is very toxic to aquatic organisms. The substance may cause long-term effects in the aquatic environment.|
|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.
Another CAS number used is 1327-52-2. Arsenic acid hemihydrate has CAS number 7774-41-6. Arsenic acid (hemihydrate) is a colourless to white hygroscopic solid. It decomposes at 160°C (loss of water); melting point 35°C; relative density 2-2.5; very soluble in water. UN number 1554.
For the copper smelting sector, the EU OEL value shall apply from 11 July 2023.
Symbol: T, N; R: 45-23/25-50/53; S: 53-45-60-61; Note: A, E
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