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HYDROXYLAMINE HYDROSULPHATE ICSC: 0897
April 2006
Hydroxylammonium hydrogensulfate
Di(hydroxylamine)sulfate
Hydroxylamine sulfate (1:1)
Hydroxylamine sulfate
PDF for printing Explanation of fields
CAS No: 10046-00-1
UN No: 3077 n.o.s.
EC No: 612-123-00-2
    H5NO5S / NH2OH.H2SO4
Molecular mass: 131.1

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. NO open flames. Powder, alcohol-resistant foam, water in large amounts, carbon dioxide.
EXPLOSION     In case of fire: keep drums, etc., cool by spraying with water.
 
EXPOSURE   PREVENT DISPERSION OF DUST!  
Inhalation see Ingestion. 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. 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 take to a doctor.
Ingestion Blue lips or finger nails. Blue 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 PACKAGING & LABELLING
Personal protection: P2 filter respirator for harmful particles. Sweep spilled substance into containers. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. EU classification
Xn Symbol
N Symbol
R: 22-36/38-43-48/22-50
S: (2-)22-24-37-61

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-90GM7-III Separated from strong bases.

IMPORTANT DATA
Physical State; Appearance
WHITE TO BROWN HYGROSCOPIC CRYSTALS

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

Occupational exposure limits
TLV not established.

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

Inhalation risk
A harmful concentration of airborne particles can be reached quicklywhen dispersed

Effects of short-term exposure
The substance is irritating to the skin. The substance may cause effects on the blood, resulting in the formation of methaemoglobin. Inhalation may cause lung oedema (see Notes).

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


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Decomposes below boiling point at 57°C
Melting point (decomposes): 57°C
Relative density (water = 1): 1.9
Solubility in water, g/100 ml: (good)
The substance is very toxic to aquatic organisms.

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.

IPCS
International
Programme on
Chemical Safety
WHO ILO UNEP EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2006
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.

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