International Chemical Safety Cards SULFUR MUSTARD ICSC: 0418 HD Mustard gas Bis(2-chloroethyl)sulfide 1,1'-Thiobis(2-chloroethane) C4H8Cl2S Molecular mass: 159.1 ICSC #    0418 CAS #     505-60-2 RTECS # WQ0900000 UN #        2810 April 22, 2005 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Combustible under specific conditions. 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 Cough. Burning sensation. Sore throat. Shortness of breath. Laboured breathing. Symptoms may be delayed (see Notes). Breathing protection. Fresh air, rest. Half-upright position. Artificial respiration may be needed. No mouth-to-mouth artificial respiration. Administer oxygen by trained personnel. Refer for medical attention.  •SKIN MAY BE ABSORBED! Pain. Redness. Blisters. Serious skin burns. Protective gloves. Protective clothing. Remove contaminated clothes. Rinse and then wash skin with water and soap. Wear protective gloves when administering first aid. Refer for medical attention.  •EYES Causes watering of the eyes. Redness. Pain. Severe deep burns. Permanent loss of vision. Safety goggles and 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. Nausea. Vomiting. Burning sensation. Shock or collapse. (See Inhalation). Wash hands before eating. Do not eat, drink, or smoke during work. Do NOT induce vomiting. No mouth-to-mouth artificial respiration. Administer oxygen by trained personnel. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT let this chemical enter the environment. Separated from water, food and feedstuffs. Well closed. Ventilation along the floor. Store in an area without drain or sewer access. Do not transport with food and feedstuffs. R: S: UN Hazard Class: 6.1 UN Packing Group: I SEE IMPORTANT INFORMATION ON BACK ICSC: 0418 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 SULFUR MUSTARD ICSC: 0418 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS TO YELLOW OILY LIQUID OR CRYSTALS , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on heating producing toxic fumes . Reacts with water . Attacks metal. OCCUPATIONAL EXPOSURE LIMITS: TLV not established. MAK: skin absorption (H); Carcinogen category: 1; (DFG 2004). ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation, through the skin and by ingestion. INHALATION RISK: A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C. EFFECTS OF SHORT-TERM EXPOSURE: Blistering agent. Lachrymation. The substance is severely irritating to the eyes , the skin and the respiratory tract . Inhalation of the substance may cause lung oedema (see Notes). The effects may be delayed. Medical observation is indicated. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Repeated or prolonged contact with skin may cause dermatitis. Lungs may be affected by repeated or prolonged exposure. The substance may have effects on the eyes , resulting in impaired functions . This substance is carcinogenic to humans. PHYSICAL PROPERTIES Boiling point: 216°C Melting point: 13.5°C Relative density (water = 1): 1.27 Solubility in water, g/100 ml at 25°C: 0.0068 (very poor) Vapour pressure, Pa at 20°C: 9.33 Relative vapour density (air = 1): 5.5 Flash point: 105°C Octanol/water partition coefficient as log Pow: 1.37-2.41 ENVIRONMENTAL DATA Persistance of this chemical may occur in soil and snow. N O T E S Do NOT take working clothes home. Depending on the degree of exposure, periodic medical examination is suggested. Common name: Yperite, Lost. Transport Emergency Card: TEC (R)-61GT1-I NFPA Code: H4; F1; R1; 0 ADDITIONAL INFORMATION ICSC: 0418 SULFUR MUSTARD (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.