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HYDROXYLAMINE HYDROCHLORIDE
ICSC: 0709
Peer-Review Status: 04.09.1997 Validated
Hydroxylammonium chloride
Oxammonium hydrochloride
Hydroxylaminium chloride 
CAS #: 5470-11-1 RTECS #: NC3675000
EC #: 612-123-00-2
EINECS #: 226-798-2
    Formula: NH2OH.HCl
Molecular mass: 69.5

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! STRICT HYGIENE!   
Inhalation Blue lips, fingernails and skin. Headache. Dizziness. Nausea. Confusion. Convulsions. Unconciousness.  Use ventilation (not if powder). Use local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Redness. Pain. See Inhalation.  Protective gloves.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
Eyes Redness. Pain.  Wear safety goggles or eye protection in combination with breathing protection if powder.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion See Inhalation.  Do not eat, drink, or smoke during work.  Rinse mouth. Give a slurry of activated charcoal in water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Do NOT wash away into sewer.   
EC Classification
Symbol: Xn, N; R: 22-36/38-43-48/22-50; S: (2)-22-24-37-61 
UN Classification
 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
  Dry. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS HYGROSCOPIC CRYSTALS. 

Physical dangers
No data. 

Chemical dangers
Decomposes slowly on contact with moisture. Upon heating, toxic fumes are formed. Decomposes on heating. The solution in water is a weak acid. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):.
MAK: Sensitization of skin (SH); (DFG 2004). 

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion. 

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed. 

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. The substance may cause effects on the red blood cells. This may result in formation of methaemoglobin. Medical observation is indicated. 

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Decomposes at at 151-152°C°C
See Notes.
Relative density (water = 1): 1.7
Solubility in water, g/100ml at 17°C: 83  
 

NOTES
Some references give a melting point (under decomposition) of 151-152°C, while one of them contains a warning for explosion on heating above 115°C.
Depending on the degree of exposure, periodic medical examination is suggested.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
Card has been partly updated in October 2005.
See section Occupational Exposure Limits. 

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