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POTASSIUM HYDROGEN SULFATE
ICSC: 1585
Peer-Review Status: 12.04.2013 Validated
Potassium acid sulfate
Sulfuric acid monopotassium salt
Monopotassium sulfate
Potassium bisulfate 
CAS #: 7646-93-7 RTECS #: TS7200000
UN #: 2509
EC #: 016-056-00-4
EINECS #: 231-594-1
    Formula: KHSO4
Molecular mass: 136.2

TYPES OF HAZARD
/ EXPOSURE
ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE-FIGHTING
FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.    In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION      
 
EXPOSURE   PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!   
Inhalation Cough. Sore throat.  Use local exhaust or breathing protection.  Fresh air, rest. Seek medical attention if you feel unwell. 
Skin Redness. Pain. Skin burns.  Protective gloves. Protective clothing.  First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. Refer for medical attention if skin irritation occurs. 
Eyes Redness. Pain. Severe deep burns.  Wear face shield 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 Sore throat. Abdominal pain. Burning sensation. Shock or collapse.  Do not eat, drink, or smoke during work.  Do NOT induce vomiting. Refer immediately for medical attention. 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: chemical protection suit and particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting.  Unbreakable packaging.
Put breakable packaging into closed unbreakable container. 
EC Classification
Symbol: C; R: 34-37; S: (1/2)-26-36/37/39-45 
UN Classification
UN Hazard Class: 8; UN Pack Group: II 
GHS Classification
Signal: Danger
Causes severe skin burns and eye damage
May cause respiratory irritation 
correxcl mark;warn

EMERGENCY RESPONSE SAFE STORAGE
  Dry. Separated from strong bases, alcohols, metals and food and feedstuffs. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS-TO-WHITE HYGROSCOPIC CRYSTALS OR CRYSTALLINE POWDER. 

Physical dangers
 

Chemical dangers
Decomposes on heating. This produces toxic fumes. Reacts with alcohols and water. The solution in water is a medium strong acid. Attacks many metals. This produces flammable/explosive gas (hydrogen - see ICSC 0001). 

Occupational exposure limits
TLV (NOT-ESTABLISHED):. 

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

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered. 

Effects of short-term exposure
The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Decomposes at 195-214°C
Density: 2.2 g/cm³
Solubility in water, g/100ml: 49 (very good) 
 

NOTES
Health effects of exposure to the substance have not been investigated adequately. 

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