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


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
 

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 is 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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       Toxicological Abbreviations