Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content
NIOSH

SULFAMIC ACID

ICSC: 0328

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
October 28, 1994 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Combustible under specific conditions. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames.
Water spray, foam, powder, carbon dioxide.
EXPLOSION

In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE
PREVENT DISPERSION OF DUST! STRICT HYGIENE!

•INHALATION Burning sensation. Cough. Shortness of breath.
Local exhaust or breathing protection.
Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.
•SKIN Redness. Pain. Blisters.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
•EYES Redness. Pain. Severe deep burns.
Face shield 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 Abdominal cramps. Burning sensation. Sore throat. Vomiting. Shock.
Do not eat, drink, or smoke during work.
Rinse mouth. Do NOT induce vomiting. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

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.
Separated from strong bases, food and feedstuffs . Dry.
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
ICSC: 0328 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

SULFAMIC ACID

ICSC: 0328

I

M

P

O

R

T

A

N

T


D

A

T

A

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 . 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.


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:

PHYSICAL
PROPERTIES

Melting point (decomposes): about 205°C
Relative density (water = 1): 2.15
Solubility in water: moderate (slow reaction)

ENVIRONMENTAL
DATA


N O T E S

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

ADDITIONAL INFORMATION



ICSC: 0328 SULFAMIC ACID
(C) IPCS, CEC, 1994
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.
Top