NICOTINIC ACID ICSC: 1702 3-Pyridinecarboxylic acid 3-Carboxypyridine Pyridine-beta-carboxylic Niacin C6H5NO2/HOOC5H4N Molecular mass: 123.1 ICSC #    1702 CAS #     59-67-6 RTECS # QT0525000 Types of Hazard/ Exposure Acute Hazards/ Symptoms Prevention First Aid/ Fire Fighting FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire. NO open flames. Water spray, foam, powder, 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. Avoid inhalation of dust. Fresh air, rest.  •Skin Protective gloves. Rinse skin with plenty of water or shower.  •Eyes Redness. Safety goggles Rinse with plenty of water (remove contact lenses if easily possible).  •Ingestion Flushing of the face. Do not eat, drink, or smoke during work. Rinse mouth. Give one or two glasses of water to drink. Spillage Disposal Storage Packaging & Labelling Personal protection: particulate filter adapted to the airborne concentration of the substance. 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. Store in an area without drain or sewer access. Separated from strong acids, bases and oxidants . Signal: Warning Causes eye irritation Harmful to aquatic life NICOTINIC ACID ICSC: 1702 Important Data Physical State; Appearance: WHITE CRYSTALS OR CRYSTALLINE POWDER. Physical Dangers: Dust explosion possible if in powder or granular form, mixed with air. Chemical Dangers: On combustion, forms toxic gases, including nitrogen oxides. Reacts with oxidants , strong acids and bases . 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, especially if powdered. Effects of Short-Term Exposure: The substance is mildly irritating to the eyes. Effects of Long-Term or Repeated Exposure: Physical Properties Melting point: 236.6°C Density: 1.5 g/cm3 Solubility in water, g/100 ml at 20°C: 1.8 (moderate) Flashpoint: 193°C c.c. Auto-ignition temperature: 580°C Explosive limits, vol% in air: 25 - ? Octanol/water partition coefficient as log Pow: -2.43 Environmental Data The substance is harmful to aquatic organisms. N O T E S ADDITIONAL INFORMATION ICSC: 1702 NICOTINIC ACID (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.