International Chemical Safety Cards 2,5-HEXANEDIOL ICSC: 0280 2,5-Dihydroxyhexane C6H14O2 Molecular mass: 118.2 ICSC #    0280 CAS #     2935-44-6 RTECS # MO2275000 March 26, 1996 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Combustible. NO open flames. Powder, water spray, foam, carbon dioxide. EXPLOSION EXPOSURE IN ALL CASES CONSULT A DOCTOR!  •INHALATION Ventilation.  •SKIN Protective gloves.  •EYES Redness. Pain. Safety spectacles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION Abdominal pain. Do not eat, drink, or smoke during work. Rinse mouth. Give plenty of water to drink. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Collect leaking and spilled liquid in sealable containers as far as possible. Wash away spilled liquid with plenty of water (extra personal protection: filter A for organic vapours.) Separated from strong oxidants. R: S: SEE IMPORTANT INFORMATION ON BACK ICSC: 0280 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 2,5-HEXANEDIOL ICSC: 0280 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS LIQUID. PHYSICAL DANGERS: The vapour mixes well with air, explosive mixtures are easily formed. CHEMICAL DANGERS: Reacts violently with oxidants causing fire and explosion hazard. OCCUPATIONAL EXPOSURE LIMITS: TLV not established. ROUTES OF EXPOSURE: The substance can be absorbed into the body by ingestion. INHALATION RISK: A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C. EFFECTS OF SHORT-TERM EXPOSURE: The substance irritates the eyes. The substance may cause effects on the immune system , resulting in aberrations of the thymus, spleen and adrenal glands. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: The substance may have effects on the central and peripheral nervous system , resulting in degeneration of the nerves. PHYSICAL PROPERTIES Boiling point: 216°C Melting point: -9°C Relative density (water = 1): 0.97 Solubility in water: miscible Relative vapour density (air = 1): 4.1 Flash point: 101°C Auto-ignition temperature: 490°C ENVIRONMENTAL DATA N O T E S This compound is a known toxic metabolite of n-hexane. For further information see also ICSC 0279 (n-Hexane). NFPA Code: H2; F1; R0 ADDITIONAL INFORMATION ICSC: 0280 2,5-HEXANEDIOL (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.