International Chemical Safety Cards ALUMINUM HYDROXIDE ICSC: 0373 Alumina hydrate Aluminum oxide trihydrate Trihydroxyaluminum AlH3O3 / Al(OH)3 Molecular mass: 78.0 ICSC #    0373 CAS #     21645-51-2 RTECS # BD0940000 March 27, 1998 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Not combustible. In case of fire in the surroundings: all extinguishing agents allowed. EXPLOSION EXPOSURE PREVENT DISPERSION OF DUST!  •INHALATION Local exhaust. Fresh air, rest.  •SKIN Protective gloves. Rinse skin with plenty of water or shower.  •EYES Safety spectacles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION Rinse mouth. Rest. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Sweep spilled substance into containers. Wash away remainder with plenty of water. R: S: SEE IMPORTANT INFORMATION ON BACK ICSC: 0373 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 ALUMINUM HYDROXIDE ICSC: 0373 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: ODOURLESS WHITE SOLID IN VARIOUS FORMS PHYSICAL DANGERS: CHEMICAL DANGERS: OCCUPATIONAL EXPOSURE LIMITS: TLV not established. MAK: 1.5 mg/m3; (1997) ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation. INHALATION RISK: Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly. EFFECTS OF SHORT-TERM EXPOSURE: EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: PHYSICAL PROPERTIES Melting point: (see Notes) 300 Density: 2.42 g/cm3 Solubility in water: none Vapour pressure, Pa at 20°C: <10 ENVIRONMENTAL DATA N O T E S The apparent melting point caused by loss of crystal water is given. Alugel, Alumigel, Alusal, Amphogel, Almogastrin, Higilite, Hychol 705, Hydrafil, Hydral 705, Liquigel, Martinal, and Reheis F 1000 are trade names. ADDITIONAL INFORMATION ICSC: 0373 ALUMINUM HYDROXIDE (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.