International Chemical Safety Cards 1-NITROPROPANE ICSC: 1050 1-NITROPROPANE 1-NP CH3CH2CH2NO2 Molecular mass: 89.1 CAS # 108-03-2 RTECS # TZ5075000 ICSC # 1050 UN # 2608 EC # 609-001-00-6 TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Flammable. NO open flames, NO sparks, and NO smoking. Powder, AFFF, foam, carbon dioxide. EXPLOSION Above 36°C explosive vapour/air mixtures may be formed. Above 36°C use a closed system, ventilation, and explosion-proof electrical equipment. In case of fire: keep drums, etc., cool by spraying with water. EXPOSURE PREVENT GENERATION OF MISTS! INHALATION Headache. Nausea. Vomiting. Ventilation, local exhaust, or breathing protection. Fresh air, rest. Refer for medical attention. SKIN Protective gloves. Protective clothing. Remove contaminated clothes. Rinse and then wash skin with water and soap. EYES Redness. Safety spectacles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor. INGESTION (Further see Inhalation). Do not eat, drink, or smoke during work. Rinse mouth. Give plenty of water to drink. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Fireproof. Separated from strong oxidants, strong bases. Xn symbol R: 10-20/21/22 S: 9 UN Hazard Class: 3 UN Packing Group: III SEE IMPORTANT INFORMATION ON BACK ICSC: 1050 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993 No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and IDLH values.

International Chemical Safety Cards 1-NITROPROPANE ICSC: 1050 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on heating producing toxic fumes and gases. Reacts violently with oxidizers and strong bases. OCCUPATIONAL EXPOSURE LIMITS (OELs): TLV: 25 ppm; 91 mg/m3 (as TWA) (ACGIH 1995-1996). OSHA PEL: TWA 25 ppm (90 mg/m3) NIOSH REL: TWA 25 ppm (90 mg/m3) NIOSH IDLH: 1000 ppm ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation and by ingestion. INHALATION RISK: A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20°C. EFFECTS OF SHORT-TERM EXPOSURE: The substance irritates the eyes and the respiratory tract. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: PHYSICAL PROPERTIES Boiling point: 132°C Melting point: -108°C Relative density (water = 1): 0.99 Solubility in water, g/100 ml: 1.4 Vapour pressure, kPa at 20°C: 1.0 Relative vapour density (air = 1): 3.1 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.02 Flash point: 36°C Auto-ignition temperature: 421°C Explosive limits, vol% in air: 2.2-? ENVIRONMENTAL DATA N O T E S Upper explosive limit is unknown in literature. Protective clothing recommended for > 8 hours: Butyl Rubber, Polyvinyl Alcohol. NFPA Code: H1; F3; R1; ADDITIONAL INFORMATION ICSC: 1050 1-NITROPROPANE © IPCS, CEC, 1993

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 IDLH values.