International Chemical Safety Cards 1,1,1-TRIMETHYLOLPROPANE ICSC: 0366 Tris(hydroxymethyl)propane 2-Ethyl-2-(hydroxymethyl)-1,3-propanediol Propylidynetrimethanol Hexaglycerol Hexaglycerine C6H14O3 Molecular mass: 134.2 ICSC #    0366 CAS #     77-99-6 RTECS # TY6470000 October 18, 2005 Validated TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Combustible. NO open flames. Powder, alcohol-resistant foam, water spray, carbon dioxide. EXPLOSION Finely dispersed particles form explosive mixtures in air. Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting. EXPOSURE PREVENT DISPERSION OF DUST!  •INHALATION Cough. Local exhaust or breathing protection. Fresh air, rest.  •SKIN Protective gloves. Remove contaminated clothes. Rinse skin with plenty of water or shower.  •EYES Redness. Safety goggles . First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION Cough. Do not eat, drink, or smoke during work. Rinse mouth. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Personal protection: P1 filter respirator for inert particles. Sweep spilled substance into containers. Wash away remainder with plenty of water. Separated from strong oxidants. Dry. Well closed. SEE IMPORTANT INFORMATION ON BACK ICSC: 0366 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 1,1,1-TRIMETHYLOLPROPANE ICSC: 0366 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS TO WHITE HYGROSCOPIC CRYSTALS OR PELLETS PHYSICAL DANGERS: CHEMICAL DANGERS: Reacts violently with strong oxidants . OCCUPATIONAL EXPOSURE LIMITS: TLV not established. MAK not established. ROUTES OF EXPOSURE: INHALATION RISK: A nuisance-causing concentration of airborne particles can be reached quickly when dispersed. EFFECTS OF SHORT-TERM EXPOSURE: May cause mechanical irritation tothe eyesandthe respiratory tract. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: PHYSICAL PROPERTIES Boiling point: 292-297°C Melting point: 58°C Density: 1.084 g/cm³ Solubility in water: at 20°C miscible Relative vapour density (air = 1): 4.63 Flash point: 172°C c.c. Auto-ignition temperature: about 375°C Explosive limits, vol% in air: 2.0-11.8 Octanol/water partition coefficient as log Pow: - 0.5 ENVIRONMENTAL DATA N O T E S ADDITIONAL INFORMATION ICSC: 0366 1,1,1-TRIMETHYLOLPROPANE (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.