International Chemical Safety Cards DODECYL BENZENESULFONIC ACID ICSC: 1470 Benzenesulfonic acid, dodecyl Laurylbenzenesulfonic acid C18H30O3S / C12H25C6H4•SO3H Molecular mass: 326.5 ICSC #    1470 CAS #     27176-87-0 RTECS # DB6600000 UN #        2586 October 08, 2002 Peer reviewed 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. In case of fire in the surroundings: use appropriate extinguishing media. EXPLOSION EXPOSURE AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!  •INHALATION Burning sensation. Cough. Laboured breathing. Shortness of breath. Sore throat. Ventilation, local exhaust, or breathing protection. Fresh air, rest. Refer for medical attention.  •SKIN Redness. Pain. Skin burns. 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. Loss of vision. 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 pain. Burning sensation. Shock or collapse. Do not eat, drink, or smoke during work. Rinse mouth. Do NOT induce vomiting. Give plenty of water to drink. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Collect leaking and spilled liquid in sealable non-metal containers as far as possible. Cautiously neutralize remainder with lime or sodium bicarbonate. Do NOT let this chemical enter the environment. Chemical protection suit including self-contained breathing apparatus. Separated from bases and oxidants . Do not transport with food and feedstuffs. R: S: UN Hazard Class: 8 UN Packing Group: III SEE IMPORTANT INFORMATION ON BACK ICSC: 1470 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.

International Chemical Safety Cards DODECYL BENZENESULFONIC ACID ICSC: 1470 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: YELLOW TO BROWN LIQUID PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on heating above 205°C producing toxic fumes including sulfur oxides and hydrogen sulfide . Reacts with bases and oxidants to produce sulfur oxides , causing toxic hazard. Attacks metals. OCCUPATIONAL EXPOSURE LIMITS: TLV not established. ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its vapour and by ingestion. INHALATION RISK: No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20°C. EFFECTS OF SHORT-TERM EXPOSURE: The substance is corrosive to the eyes, the skin and the respiratory tract. Corrosive on ingestion. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: PHYSICAL PROPERTIES Boiling point (decomposes): >204.5°C Melting point: 10°C Relative density (water = 1): 1 Solubility in water: very good Flash point: 148.9°C o.c. ENVIRONMENTAL DATA The substance is toxic to aquatic organisms. N O T E S Transport Emergency Card: TEC (R)-80S2586 ADDITIONAL INFORMATION ICSC: 1470 DODECYL BENZENESULFONIC 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.