International Chemical Safety Cards HYDROXYLAMINE HYDROCHLORIDE ICSC: 0709 Hydroxylammonium chloride Oxammonium hydrochloride Hydroxylaminium chloride NH2OH•HCl Molecular mass: 69.5 ICSC #    0709 CAS #     5470-11-1 RTECS # NC3675000 EC #         612-123-00-2 April 09, 1997 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 PREVENT DISPERSION OF DUST! STRICT HYGIENE!  •INHALATION Blue lips or finger nails. Blue skin. Headache. Dizziness. Nausea. Confusion. Convulsions. Unconsciousness. Ventilation (not if powder). Local exhaust or breathing protection. Fresh air, rest. Refer for medical attention.  •SKIN Redness. Pain (see Inhalation). Protective gloves. Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.  •EYES Redness. Pain. 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 (See Inhalation). Do not eat, drink, or smoke during work. Rinse mouth. Give a slurry of activated charcoal in water to drink. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Do NOT wash away into sewer. Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting (extra personal protection: P2 filter respirator for harmful particles). Dry. Xn symbol N symbol R: 22-36/38-43-48/22-50 S: 2-22-24-37-61 SEE IMPORTANT INFORMATION ON BACK ICSC: 0709 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 HYDROXYLAMINE HYDROCHLORIDE ICSC: 0709 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS HYGROSCOPIC CRYSTALS. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes slowly on contact with moisture. Upon heating, toxic fumes are formed. The solution in water is a weak acid. OCCUPATIONAL EXPOSURE LIMITS: TLV not established. ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion. INHALATION RISK: Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly by dispersing. EFFECTS OF SHORT-TERM EXPOSURE: The substance irritates the eyes, the skin and the respiratory tract. The substance may cause effects on the red blood cells , resulting in formation of methaemoglobin. Medical observation is indicated. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Repeated or prolonged contact may cause skin sensitization. PHYSICAL PROPERTIES Melting point (decomposes): (see Notes) 151-152°C Relative density (water = 1): 1.7 Solubility in water, g/100 ml at 17°C: 83 ENVIRONMENTAL DATA N O T E S Some references give a melting point (under decomposition) of 151-152°C, while one of them contains a warning for explosion on heating above 115°C. Depending on the degree of exposure, periodic medical examination is indicated. Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. ADDITIONAL INFORMATION ICSC: 0709 HYDROXYLAMINE HYDROCHLORIDE (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.