INTOX Home Page
HYDROXYLAMINE HYDROCHLORIDE ICSC: 0709
Date of Peer Review: April 1997

Hydroxylammonium chloride
Oxammonium hydrochloride
Hydroxylaminium chloride
CAS # 5470-11-1 NH2OH.HCl
RTECS # NC3675000 Molecular mass: 69.5
UN #
EC Index # 612-123-00-2
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! STRICT HYGIENE!

Inhalation Blue lips or finger nails. Blue skin. Headache. Dizziness. Nausea. Confusion. Convulsions. Unconsciousness.
Ventilation (not if powder). 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.
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 take to a doctor.
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
Do NOT wash away into sewer. Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Personal protection: P2 filter respirator for harmful particles.
EU Classification
Symbol: Xn, N
R: 22-36/38-43-48/22-50
S: (2-)-22-24-37-61
UN Classification

EMERGENCY RESPONSE STORAGE

Dry.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2005

SEE IMPORTANT INFORMATION ON BACK
HYDROXYLAMINE HYDROCHLORIDE ICSC: 0709
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS HYGROSCOPIC CRYSTALS.

CHEMICAL DANGERS:
The substance decomposes slowly on contact with moisture. Upon heating, toxic fumes are formed. 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 20C 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, the skin and the respiratory tract. The substance may cause effects on the red blood cells, resulting 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
Melting point (decomposes): (see Notes) 151-152C
Relative density (water = 1): 1.7
Solubility in water, g/100 ml at 17C: 83
ENVIRONMENTAL DATA

NOTES
Some references give a melting point (under decomposition) of 151-152C, while one of them contains a warning for explosion on heating above 115C. 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


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 2005