PARAFORMALDEHYDE ICSC: 0767 Polyoxymethylene Formagen Polymerised formaldehyde Formaldehyde polymer Paraform (CH2O)n•H2O ICSC #    0767 CAS #     30525-89-4 RTECS # RV0540000 UN #        2213 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 Above 71°C explosive vapour/air mixtures may be formed. Finely dispersed particles form explosive mixtures in air. Above 71°C use a closed system, ventilation. Prevent deposition of dust: closed system, dust-explosion proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding). Exposure PREVENT DISPERSION OF DUST!  •Inhalation Cough. Sore throat. Burning sensation. Laboured breathing. Local exhaust or breathing protection. Fresh air, rest. Half-upright position. Refer for medical attention.  •Skin Redness. Pain. Protective gloves. Protective clothing. Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.  •Eyes Redness. Pain. Burns Safety goggles, or eye protection in combination with breathing protection if powder. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •Ingestion Burning sensation in the throat and chest. Do not eat, drink, or smoke during work. Rinse mouth. Do NOT induce vomiting. Give one or two glasses of water to drink. Seek medical attention if you feel unwell Spillage Disposal Storage Packaging & Labelling Personal protection: P2 filter respirator for harmful particles. Sweep spilled substance into covered containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. Cool. Dry. Keep in a well-ventilated room. Separated from strong oxidants, strong bases and strong acids. UN Hazard Class: 4.1 UN Packing Group: III Signal: Danger Flame-Skull Flammable solid Harmful if swallowed Fatal if inhaled dust Causes skin irritation Causes serious eye irritation May cause allergic skin reaction PARAFORMALDEHYDE ICSC: 0767 Important Data Physical State; Appearance: WHITE SOLID IN VARIOUS FORMS , WITH PUNGENT ODOUR. Physical Dangers: Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc. Chemical Dangers: The substance decomposes on heating or on contact with acids , bases and oxidants producing flammable formaldehyde. Occupational Exposure Limits: TLV not established. MAK not established. Routes of Exposure: The substance can be absorbed into the body by inhalation and by ingestion. Inhalation Risk: A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered Effects of Short-Term Exposure: The substance is severely irritating to the eyes, the skin and the respiratory tract . Effects of Long-Term or Repeated Exposure: Repeated or prolonged contact may cause skin sensitization. See Notes. Physical Properties Melting point: 120-180°C Decomposes Relative density (water = 1): 1.5 Solubility in water: poor Vapour pressure, kPa at 25°C: <0.16 Relative vapour density (air = 1): 1.03 Flash point: 71°C c.c. Auto-ignition temperature: 300°C Explosive limits, vol% in air: 7.0-73.0 Environmental Data The substance is harmful to aquatic organisms. N O T E S Also consult ICSC 0275 (formaldehyde). Transport Emergency Card: TEC (R)-41GF1-II+III NFPA Code: H3; F2; R1; ADDITIONAL INFORMATION ICSC: 0767 PARAFORMALDEHYDE (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.