Amidosulfonic acid
Amidosulfuric acid
Sulfamidic acid
H3NO3S / NH2SO3H
Molecular mass: 97.1
ICSC # 0328
CAS # 5329-14-6
RTECS # WO5950000
UN # 2967
EC # 016-026-00-0
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Combustible under specific conditions.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames.
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Water spray, foam, powder, carbon dioxide.
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Explosion
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In case of fire: keep drums, etc., cool by spraying with water.
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Exposure
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PREVENT DISPERSION OF DUST!
STRICT HYGIENE!
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•Inhalation
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Burning sensation.
Cough.
Shortness of breath.
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Local exhaust or breathing protection.
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Fresh air, rest.
Half-upright position.
Artificial respiration may be needed.
Refer for medical attention.
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•Skin
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Redness.
Pain.
Blisters.
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
Refer for medical attention.
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•Eyes
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Redness.
Pain.
Severe deep burns.
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Face shield
or
eye protection in combination with breathing protection.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Abdominal cramps.
Burning sensation.
Sore throat.
Vomiting.
Shock.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Do NOT induce vomiting.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting.
Cautiously neutralize remainder.
Then wash away with plenty of water.
Personal protection: P2 filter respirator for harmful particles.
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Separated from
strong bases,
food and feedstuffs
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Dry.
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Do not transport with food and feedstuffs.
Xi symbol
R: 36/38-52/53
S: 2-26-28-61
UN Hazard Class: 8
UN Packing Group: III
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Important Data
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Physical State; Appearance:
ODOURLESS,
COLOURLESS
CRYSTALS
OR POWDER.
Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating
or
on burning
producing
toxic and corrosive fumes
including
nitrogen oxides
and
sulfur oxides
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The solution in water is a strong acid, it reacts violently with bases and is corrosive.
Reacts violently with chlorine and fuming nitric acid
causing explosion hazard.
Reacts slowly with water to form ammonium bisulfate.
Occupational Exposure Limits:
TLV not established.
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its aerosol
and
by ingestion.
Inhalation Risk:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered.
Effects of Short-Term Exposure:
The aerosol
is corrosive to
the eyes,
the skin
and
the respiratory tract.
Inhalation of sulfamic acid aerosols may cause lung oedema (see Notes).
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Melting point (decomposes): about 205°C
Relative density (water = 1): 2.15
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Solubility in water: moderate (slow reaction)
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Environmental
Data
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N O T E S
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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.
Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered.
Card has been partly updated in October 2005. See sections EU classification, Emergency Response.
Transport Emergency Card: TEC (R)-80GC2-II+III
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ADDITIONAL INFORMATION
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ICSC: 0328
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SULFAMIC ACID
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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