International Chemical Safety Cards TRIMETHYL PHOSPHATE ICSC: 0686 TRIMETHYL PHOSPHATE Phosphoric acid trimethyl ester (CH3O)3PO Molecular mass: 140.08 CAS # 512-56-1 RTECS # TC8225000 ICSC # 0686 TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire. NO open flames. Powder, alcohol-resistant foam, water spray, carbon dioxide. EXPLOSION Risk of fire and explosion of the residue from a large distillation of TMP.   EXPOSURE STRICT HYGIENE! AVOID EXPOSURE OF (PREGNANT) WOMEN! IN ALL CASES CONSULT A DOCTOR! INHALATION (see Ingestion). Ventilation, local exhaust, or breathing protection. Fresh air, rest. Refer for medical attention. SKIN MAY BE ABSORBED! Weakness. Incordination. Tremors. Protective gloves. Protective clothing. Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention. EYES Safety goggles, and face shield. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor. INGESTION Shortness of breath. Weakness. Hyperirritability. Tremors. Loss of weihgt. Do not eat, drink, or smoke during work. Rinse mouth. Give a slurry of activated charcoal in water to drink. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Ventilation. Collect leaking liquid in sealable containers (extra personal protection: complete protective clothing including self-contained breathing apparatus). SEE IMPORTANT INFORMATION ON BACK ICSC: 0686 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

International Chemical Safety Cards TRIMETHYL PHOSPHATE ICSC: 0686 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS LIQUID. CHEMICAL DANGERS: The substance decomposes on heating producing toxic fumes of POx. OCCUPATIONAL EXPOSURE LIMITS (OELs): TLV not established. ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its vapour, through the skin 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 may cause effects on the central nervous system. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: The substance may have effects on the central nervous system , resulting in weakness, tremors, paralysis. May cause genetic damage in humans. PHYSICAL PROPERTIES Boiling point: 197.2°C Melting point: -46°C Relative density (water = 1): 1.21 Solubility in water: good

ENVIRONMENTAL DATA
NOTES

ADDITIONAL INFORMATION
ICSC: 0686 TRIMETHYL PHOSPHATE © IPCS, CEC, 1993

IMPORTANT LEGAL NOTICE: Neither the CEC or the IPCS nor any person acting on behalf of 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.