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SULFANILIC ACID ICSC: 0569
Date of Peer Review: April 2005

4-Aminobenzenesulfonic acid
Aniline-4-sulfonic acid
CAS # 121-57-3 C6H7NO3S
RTECS # WP3895500 Molecular mass: 173.2
UN #
EC # 612-014-00-X
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames.
Powder, water spray, foam, carbon dioxide.
EXPLOSION


EXPOSURE
PREVENT DISPERSION OF DUST!

Inhalation
Local exhaust or breathing protection.
Fresh air, rest.
Skin Redness.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
Eyes Redness. Pain.
Safety goggles or eye protection in combination with breathing protection if powder.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion
Do not eat, drink, or smoke during work.
Rinse mouth.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Personal protection: P2 filter respirator for harmful particles. Do NOT let this chemical enter the environment. Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water.
EU Classification
Symbol: Xi
R: 36/38-43
S: (2-)-24-37
UN Classification

EMERGENCY RESPONSE STORAGE

Separated from strong acids, strong bases.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 1999

SEE IMPORTANT INFORMATION ON BACK
SULFANILIC ACID ICSC: 0569
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
WHITE POWDER OR WHITE TO GREY CRYSTALS

CHEMICAL DANGERS:
The substance decomposes on heating around 290C, on burning and on contact with strong acids producing toxic fumes including nitrogen oxides and sulfur oxides. Reacts violently with strong bases.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK not established.
INHALATION RISK:
A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes. The substance is mildly irritating to the skin.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact may cause skin sensitization.
PHYSICAL PROPERTIES
Melting point (decomposes): 288C
Density: 1.49 g/cm
Solubility in water: poor
Octanol/water partition coefficient as log Pow: -0.9
ENVIRONMENTAL DATA
The substance is harmful to aquatic organisms.
NOTES
At room temperature this substance is in the form of monohydrate. It becomes anhydrous around 100C.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 1999