International Chemical Safety Cards GUANIDINE NITRATE ICSC: 0561 Guanidine mononitrate Guandidinium nitrate CH6N4O3 / CH5N3•HNO3 Molecular mass: 122.1 ICSC #    0561 CAS #     506-93-4 RTECS # MF4350000 UN #        1467 October 27, 1995 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Explosive. Gives off irritating or toxic fumes (or gases) in a fire. NO open flames, NO sparks, and NO smoking. NO contact with flammable substances. Water in large amounts. EXPLOSION Risk of fire and explosion. Do NOT expose to friction or shock. In case of fire: keep drums, etc., cool by spraying with water. EXPOSURE PREVENT DISPERSION OF DUST! STRICT HYGIENE!  •INHALATION See Notes. Local exhaust or breathing protection. Fresh air, rest.  •SKIN Pain. Blisters. Protective gloves. Rinse and then wash skin with water and soap.  •EYES Pain. Severe deep burns. Face shield. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION Do not eat, drink, or smoke during work. Do NOT induce vomiting. Rest. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Evacuate danger area and consult an expert in case of large spill. Do NOT wash away into sewer. Sweep spilled substance into covered containers; if appropriate, moisten first to prevent dusting. Do NOT absorb in saw-dust or other combustible absorbents. Fireproof. Separated from combustible and reducing substances, strong oxidants. R: S: UN Hazard Class: 5.1 UN Packing Group: III SEE IMPORTANT INFORMATION ON BACK ICSC: 0561 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

International Chemical Safety Cards GUANIDINE NITRATE ICSC: 0561 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: WHITE SOLID IN VARIOUS FORMS. PHYSICAL DANGERS: CHEMICAL DANGERS: May explosively decompose on shock, friction, or concussion. May explode on heating. On combustion, forms toxic and corrosive fumes including nitric acid and nitrogen oxides. The substance is a strong oxidant and reacts with combustible and reducing materials. OCCUPATIONAL EXPOSURE LIMITS: TLV not established. MAK not established. ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. INHALATION RISK: Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly. EFFECTS OF SHORT-TERM EXPOSURE: The substance is corrosive to the eyes and the skin. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: PHYSICAL PROPERTIES Decomposes below boiling point Melting point: 213-215°C Solubility in water: moderate ENVIRONMENTAL DATA N O T E S Health effects of exposure to the substance have not been investigated. Rinse contaminated clothes (fire hazard) with plenty of water. Transport Emergency Card: TEC (R)-51G02 ADDITIONAL INFORMATION ICSC: 0561 GUANIDINE NITRATE (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.