... s buffer,chelate,nutrient additive, emulsifier,flavor for yoghurt etc. Sodium CitrateFormula: Na3C6H5O7·2H2OMolecular Weight: 294.10 Specificity: Colourless or ... salty and acid,soluble in water (1g/1.5ml,25), insoluble in ethanol, steady in air, slightly deliquescence in moist air,PH7. ... 6-8.6 in 5% aqueous solution, ...