ICSC 0709 - HYDROXYLAMINE HYDROCHLORIDE

[List of Chemicals] [Risk Notes] [Risk Phrases] [Safety Phrases] [Danger Symbols]

HYDROXYLAMINE HYDROCHLORIDE

ICSC: 0709
_{April 1997}

Hydroxylammonium chloride
Oxammonium hydrochloride
Hydroxylaminium chloride

CAS No: 5470-11-1
RTECS No: NC3675000
EC No: 612-123-00-2

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 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.	Xn Symbol N Symbol R: 22-36/38-43-48/22-50 S: (2-)22-24-37-61

EMERGENCY RESPONSE	SAFE STORAGE
	Dry.

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 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, 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	ENVIRONMENTAL DATA
Melting point (decomposes): (see Notes) 151-152°C Relative density (water = 1): 1.7 Solubility in water, g/100 ml 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.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004

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