Potassium chloride and sodium chloride occur as a colourless or white crystal and are freely soluble in water. Calcium chloride is a white, crystalline powder, hygroscopic and freely soluble in water. Sodium lactate is available as a sodium lactate solution having physical properties as a clear, colourless, slightly syrupy liquid, miscible with water. Compound Sodium Lactate (Hartmanns) is a sterile, non-pyrogenic solution. The only excipient in these solutions is water for injection; no antimicrobial agent or buffer is included. They are isotonic intravenous solutions with pH of 5.0 – 7.0. Each 1000mL of Compound Sodium Lactate (Hartmanns) infusion solution contains: Sodium Chloride 6g Sodium Lactate 3.22g Potassium Chloride 0.4g Calcium Chloride Dihydrate 0.27g Water for Injections q.s. to 1000mL