Zinc Gluconate USP Grade Specifications:
C12H22O14Zn --- 455.67
Bis(d-gluconato- O 1 , O 2 ) zinc;
Zinc d-gluconate (1:2) CAS 4468-02-4.

DEFINITION
Zinc Gluconate contains NLT 97.0% and NMT 102.0% of zinc gluconate (C12H22O14Zn), calculated on the anhydrous basis.

IDENTIFICATION
A. Identification Tests—General, Zinc: A 100-mg/mL solution meets the requirements.
B. Thin-Layer Chromatography: To pass the test.

Zinc Gluconate FCC Food Grade
C12H22O14Zn Formula weight 455.68
CAS: 4468-02-4

DESCRIPTION
Zinc Gluconate occurs as a white or nearly white, granular or crystalline powder and as a mixture of various states of hydration, up to the trihydrate, depending on the method of isolation. It is freely soluble in water and very slightly soluble in alcohol.
Function: Nutrient

REQUIREMENTS
Identification:
A. A 1:10 aqueous solution gives positive tests for Zinc.
B: Chromatographic plate test.
Assay: Not less than 97.0% and not more than 102.0% of C12H22O14Zn, calculated on the anhydrous basis.
Cadmium: Not more than 2 mg/kg.
Chloride: Not more than 0.05%.
Lead: Not more than 2 mg/kg.
Reducing Substances: Not more than 1.0%.
Sulfate: Not more than 0.05%.
Water: Not more than 11.6%.