ICSC 0897 - HYDROXYLAMINE HYDROSULPHATE

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HYDROXYLAMINE HYDROSULPHATE	ICSC: 0897 (June 2006)
Hydroxylammonium hydrogensulfate Di(hydroxylamine)sulfate Hydroxylamine sulfate (1:1) Hydroxylamine sulfate

CAS #: 10046-00-1

UN #: 3077

EC Number: 233-154-4

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.	NO open flames.	Use water in large amounts, powder, alcohol-resistant foam, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water.

PREVENT DISPERSION OF DUST!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	See Ingestion.	Use ventilation, local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin	Redness. Pain.	Protective gloves.	Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .
Eyes	Redness.	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	Blue lips, fingernails and skin. Confusion. Dizziness. Headache. Nausea.	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	CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT let this chemical enter the environment.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 9; UN Pack Group: III
STORAGE
Separated from strong bases. Store in an area without drain or sewer access.
PACKAGING

HYDROXYLAMINE HYDROSULPHATE

ICSC: 0897

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance WHITE-TO-BROWN HYGROSCOPIC CRYSTALS. Physical dangers Chemical dangers Decomposes on heating. This produces corrosive fumes. The substance is a weak acid. Attacks many metals. This produces flammable/explosive gas (hydrogen - see ICSC 0001).	Formula: H₅NO₅S / NH₂OH.H₂SO₄ Molecular mass: 131.1 Decomposes at 57°C Relative density (water = 1): 1.9 Solubility in water: good

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE-TO-BROWN HYGROSCOPIC CRYSTALS.

Physical dangers

Chemical dangers
Decomposes on heating. This produces corrosive fumes. The substance is a weak acid. Attacks many metals. This produces flammable/explosive gas (hydrogen - see ICSC 0001).

Formula: H₅NO₅S / NH₂OH.H₂SO₄
Molecular mass: 131.1
Decomposes at 57°C
Relative density (water = 1): 1.9
Solubility in water: good

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its aerosol. Effects of short-term exposure The substance is irritating to the skin. The substance may cause effects on the blood. This may result in the formation of methaemoglobin. Inhalation may cause lung oedema. See Notes.	Inhalation risk A harmful concentration of airborne particles can be reached quickly when dispersed. Effects of long-term or repeated exposure Repeated or prolonged contact may cause skin sensitization.

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol.

Effects of short-term exposure
The substance is irritating to the skin. The substance may cause effects on the blood. This may result in the formation of methaemoglobin. Inhalation may cause lung oedema. See Notes.

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed.

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

OCCUPATIONAL EXPOSURE LIMITS
MAK: sensitization of skin (SH)

ENVIRONMENT
The substance is very toxic to aquatic organisms. It is strongly advised not to let the chemical enter into the environment.

NOTES
Depending on the degree of exposure, periodic medical examination is suggested. The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential. Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.

ADDITIONAL INFORMATION

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

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