BENZENESULFONIC ACID 1626
October 2005
CAS No: 98-11-3 Benzenemonosulfonic acid
Phenylsulfonic acid
RTECS No: DB4200000
C6H6O3S
UN No: 2585
Molecular mass: 158.2
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
FIRE Combustible. Gives off irritating or NO open flames. Powder, alcohol-resistant foam,
toxic fumes (or gases) in a fire. water in large amounts, carbon
dioxide.
EXPLOSION
EXPOSURE STRICT HYGIENE!
Inhalation Cough. Sore throat. Shortness of Ventilation (not if powder), local Fresh air, rest. Half-upright position.
breath. Laboured breathing. Burning exhaust, or breathing protection. Artificial respiration may be needed.
sensation. Headache. Nausea. Refer for medical attention.
Skin Redness. Burning sensation. Pain. Protective gloves. Protective clothing. Remove contaminated clothes.
Skin burns. Rinse skin with plenty of water or
shower. Refer for medical attention.
Eyes Redness. Pain. Severe deep burns. Face shield and eye protection in First rinse with plenty of water for
combination with breathing several minutes (remove contact
protection. lenses if easily possible), then take to
a doctor.
Ingestion Sore throat. Burning sensation in Do not eat, drink, or smoke during Rinse mouth. Give plenty of water to
the throat and chest. Abdominal work. drink. Do NOT induce vomiting. Refer
pain. Shock or collapse. for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Personal protection: P2 filter respirator for harmful UN Hazard Class: 8 Do not transport with food and
particles. Use face shield. Chemical protection suit. UN Pack Group: III feedstuffs.
Sweep spilled substance into plastic containers.
Wash away remainder with plenty of water.
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-80GC4-II+III Separated from oxidants, bases, metals, food and feedstuffs Dry. Well closed.
Ventilation along the floor.
Prepared in the context of cooperation between the International
IPCS Programme on Chemical Safety and the European Commission 漏
IPCS 2005
International
Programme on
SEE IMPORTANT INFORMATION ON THE BACK.
Chemical Safety
1626 BENZENESULFONIC ACID
IMPORTANT DATA
Physical State; Appearance Routes of exposure
GREY TO YELLOW HYGROSCOPIC CRYSTALS OR FLAKES, The substance can be absorbed into the body by inhalation and
WITH PUNGENT ODOUR. by ingestion.
Chemical dangers Inhalation risk
The substance decomposes on heating producing toxic and A harmful concentration of airborne particles can be reached
corrosive fumes. The solution in water is a strong acid, it reacts quickly on spraying.
violently with bases and is corrosive. Reacts violently with
oxidants. Attacks many metals forming flammable/explosive gas Effects of short-term exposure
(hydrogen - see ICSC 0001). The substance is corrosive to the eyes, the skin and the
respiratory tract. Corrosive on ingestion.
Occupational exposure limits
TLV not established.
MAK not established.
PHYSICAL PROPERTIES
Boiling point: 190/C Relative vapour density (air = 1): 5.5
Melting point: 51/C Flash point: 113/C
Relative density (water = 1): 1.3 (at 47/C) Octanol/water partition coefficient as log Pow: -1.2
Solubility in water, g/100 ml at 20/C: 93
ENVIRONMENTAL DATA
NOTES
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE for the use which might be made of this information
漏IPCS 2005
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