International Chemical Safety Cards AMMONIUM HYDROGEN CARBONATE ICSC: 1333 Ammonium bicarbonate Acid ammonium carbonate Carbonic acid, monoammonium salt CH5NO3 / NH4HCO3 Molecular mass: 79.1 ICSC #    1333 CAS #     1066-33-7 RTECS # BO8600000 November 23, 1998 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire. In case of fire in the surroundings: all extinguishing agents allowed. EXPLOSION EXPOSURE  •INHALATION Cough. Sore throat. Ventilation, local exhaust, or breathing protection. Fresh air, rest.  •SKIN Protective gloves. Rinse skin with plenty of water or shower.  •EYES Redness. Pain. Safety spectacles. 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. Rinse mouth. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Sweep spilled substance into covered containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water. (Extra personal protection: combined filter for particles and ammonia). Separated from strong oxidants, strong bases, acids. Cool. R: S: SEE IMPORTANT INFORMATION ON BACK ICSC: 1333 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 AMMONIUM HYDROGEN CARBONATE ICSC: 1333 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS OR WHITE CRYSTALS , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on warming above 35°C producing ammonia fumes. Reacts violently with acids. Reacts with strong bases and strong oxidants. 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. INHALATION RISK: No indication can be given about the rate in which a harmful concentration in the air is reached 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 Melting point (decomposes): 35-60°C Density: 1.58 g/cm3 Solubility in water, g/100 ml at 20°C: 17.4 good ENVIRONMENTAL DATA N O T E S ADDITIONAL INFORMATION ICSC: 1333 AMMONIUM HYDROGEN CARBONATE (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.