ACEPHATE ICSC: 0748 O,S-Dimethyl acetylphosphoramidothioate Phosphoramidothioic acid, acetyl-, O,S-dimethyl ester N-(Methoxy(methylthio)phosphinoyl)acetamide C4H10NO3PS Molecular mass: 183.2 ICSC #    0748 CAS #     30560-19-1 RTECS # TB4760000 EC #         015-079-00-7 Types of Hazard/ Exposure Acute Hazards/ Symptoms Prevention First Aid/ Fire Fighting FIRE Liquid formulations containing organic solvents may be flammable. Gives off irritating or toxic fumes (or gases) in a fire. In case of fire in the surroundings: use appropriate extinguishing media. Explosion Exposure PREVENT DISPERSION OF DUST! AVOID Exposure OF ADOLESCENTS AND CHILDREN!  •Inhalation Pupillary constriction, muscle cramp, excessive salivation. Sweating. Nausea. Dizziness. Laboured breathing. Convulsions. Ventilation, local exhaust, or breathing protection. Fresh air, rest. Half-upright position. Refer for medical attention.  •Skin Protective gloves. Rinse skin with plenty of water or shower.  •Eyes Safety spectacles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •Ingestion Abdominal cramps. Vomiting. Diarrhoea. (See Inhalation). Do not eat, drink, or smoke during work. Wash hands before eating. Rinse mouth. Rest. Refer for medical attention. Spillage Disposal Storage Packaging & Labelling Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. (Extra personal protection: P2 filter respirator for harmful particles.) Separated from food and feedstuffs . Xn symbol R: 22 S: 2-36 ACEPHATE ICSC: 0748 Important Data Physical State; Appearance: COLOURLESS CRYSTALS OR WHITE POWDER , WITH CHARACTERISTIC ODOUR. Physical Dangers: Chemical Dangers: The substance decomposes on heating producing toxic fumes including nitrogen oxides , phosphorous oxides and sulfur oxides . Occupational Exposure Limits: TLV not established. MAK not established. Routes of Exposure: The substance can be absorbed into the body by ingestion and by inhalation of its aerosol. Inhalation Risk: A harmful concentration of airborne particles can be reached quickly on spraying or when dispersed, especially if powdered. Effects of Short-Term Exposure: The substance may cause effects on the nervous system and blood , resulting in cholinesterase inhibition. Medical observation is indicated. The effects may be delayed. Effects of Long-Term or Repeated Exposure: Physical Properties Melting point: 92-93°C Density: 1.4 g/cm3 Solubility in water, g/100 ml at 20°C: 79 Vapour pressure, Pa at 24°C: 0.0002 Octanol/water partition coefficient as log Pow: -0.9 Environmental Data This substance may be hazardous in the environment; special attention should be given to crustacea, birds, honey bees. This substance does enter the environment under normal use. Great care, however, should be given to avoid any additional release, e.g. through inappropriate disposal. N O T E S Depending on the degree of exposure, periodic medical examination is suggested. Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. If the substance is formulated with solvents also consult the ICSCs of these materials. Carrier solvents used in commercial formulations may change physical and toxicological properties. ADDITIONAL INFORMATION ICSC: 0748 ACEPHATE (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.