Name Sodium gluconate Synonyms D-Gluconic acid, monosodium salt; Gluconic acid sodium saltMolecular Formula C6H11NaO7Molecular Weight 218.14CAS Registry Number 527-07-1EINECS 208-407-7PropertiesMelting point 206-209 C Items Refined Grade Tech GradeAppearance White crystalline White to tan crystalline powderIndentification Meet the requirements Meet the requirementsPurity, % 98.0-102.0 98.0-102.0Loss on drying, % 0.30max 0.30maxReducing substances, % 0.10max 0.30maxHeavy metals, ug/g 10max 10maxAs, ug/g 1max 1maxSulphate, % 0.005max 0.02maxChloride, % 0.005max 0.02maxLead, ug/g 1max 1maxClarity colorless colorlessPH 6.5-7.8 6.5-7.8