Chemical Specifications Appearance An almost white or colourless crystals, dry crystalline powder; odourless; taste, sweet Identification To comply IP test Acidity or alkalinity Not more than 0.6 mL of 0.01 M sodium hydroxide is required to change the colour of the solution to pink Specific optical rotation ([a]25/D; 10% w/v in water) +65.9° to +67.0° Barium (Ba) To comply IP test Calcium (Ca) To comply IP test Heavy metal (as Pb) Max 0.001% Sulphite To comply IP test Dextrins To comply IP test Glucose and invert sugar To comply IP test Colouring matter To comply IP test Sulphated ash Max 0.1%