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BENZENE ARSONIC ACIDICSC: 0223
March 1995
CAS #: 98-05-5Phenylarsonic acid
UN #: 3465
EINECS #: 202-631-9

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.        In case of fire in the surroundings, use appropriate extinguishing media.   

 PREVENT DISPERSION OF DUST! AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR! 
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Abdominal pain. Confusion. Diarrhoea. Dizziness. Drowsiness. Headache. Vomiting. Incoordination. Paralysis. Symptoms may be delayed. See Notes.  Use closed system or ventilation.  Fresh air, rest. Refer for medical attention. 
Skin Further see Inhalation.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
Eyes   Wear safety goggles or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. Confusion. Diarrhoea. Dizziness. Dullness. Headache. Vomiting. Incoordination. Muscle paralysis. Further see Inhalation.  Do not eat, drink, or smoke during work.   

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: complete protective clothing including self-contained breathing apparatus. Do NOT wash away into sewer. Sweep spilled substance into covered sealable containers. Carefully collect remainder. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 6.1 

STORAGE
Separated from food and feedstuffs. Dry. Ventilation along the floor. 
PACKAGING
Airtight.
Unbreakable packaging.
Put breakable packaging into closed unbreakable container.
Do not transport with food and feedstuffs.
Marine pollutant. 
BENZENE ARSONIC ACID ICSC: 0223
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS SOLID IN VARIOUS FORMS. 

Physical dangers
 

Chemical dangers
Decomposes on heating. This produces toxic fumes including arsenic (see ICSC 0013). 

Formula: C6H7AsO3 / C6H5AsO(OH)2
Molecular mass: 202.05
Decomposes at 160°C
Relative density (water = 1): 1.76
Solubility in water: poor 


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation and by ingestion. 

Effects of short-term exposure
See Notes. 

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 long-term or repeated exposure
 


Occupational exposure limits
 

ENVIRONMENT
 

NOTES
Depending on the degree of exposure, periodic medical examination is suggested.
The symptoms of systemic arsenic poisoning do not become manifest until hours after the exposure. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: T, N; R: 23/25-50/53; S: (1/2)-20/21-28-45-60-61; Note: A 

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       Toxicological Abbreviations