International Chemical Safety Cards SODIUM CITRATE DIHYDRATE ICSC: 1219 Trisodium citrate dihydrate 2-Hydroxy-1,2,3-propanetricarboxylic acid, trisodium salt, dihydrate C6H9Na3O9 / C6H5Na3O7•2H2O Molecular mass: 294.1 ICSC #    1219 CAS #     6132-04-3 RTECS # November 27, 2003 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Combustible. NO open flames. Water spray, powder. EXPLOSION EXPOSURE  •INHALATION Cough. Sore throat. Ventilation (not if powder). Fresh air, rest.  •SKIN 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 Do not eat, drink, or smoke during work. Rinse mouth. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water. R: S: SEE IMPORTANT INFORMATION ON BACK ICSC: 1219 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 SODIUM CITRATE DIHYDRATE ICSC: 1219 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: The solution in water is a weak base. OCCUPATIONAL EXPOSURE LIMITS: TLV not established. MAK: IIb, see Notes. 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 nuisance-causing concentration of airborne particles can, however, be reached quickly when dispersed. EFFECTS OF SHORT-TERM EXPOSURE: The substance is irritating to the eyes and the respiratory tract . EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: PHYSICAL PROPERTIES Melting point (decomposes): 150°C Solubility in water: 77 g/100 ml ENVIRONMENTAL DATA N O T E S The apparent melting point caused by loss of crystal water is given. MAK value not established but full documentation is available (MAK IIb) for citric acid and its alkali metal salts. ADDITIONAL INFORMATION ICSC: 1219 SODIUM CITRATE DIHYDRATE (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.