Description

Zinc Citrate Dihydrate is a white, crystalline powder that serves as a highly bioavailable source of zinc. This compound is valued for its excellent stability and solubility profile, making it a preferred ingredient in formulations requiring controlled mineral release. It is primarily utilized by manufacturers in the nutraceutical, food, and pharmaceutical industries seeking a reliable and effective zinc fortifier.

Application

• Dietary Supplements & Vitamins: A key mineral source in multivitamin, mineral, and standalone zinc supplement formulations.
• Functional Food & Beverage Fortification: Used to enrich products like breakfast cereals, nutritional bars, and health drinks with essential zinc.
• Pharmaceutical Preparations: Employed as an active pharmaceutical ingredient (API) or excipient in lozenges, tablets, and syrups aimed at supporting immune function.
• Oral Care Products: Incorporated into toothpaste and mouthwash formulations for its anti-plaque and anti-odor properties.
• Animal Nutrition (Feed Premixes): Acts as a vital trace mineral additive in livestock and pet feed to promote growth and overall health.
• Cosmetic & Personal Care: Used in certain skin care products for its potential astringent and soothing benefits.

Basic Information

Product Name	Zinc Citrate Dihydrate
CAS No.	5990-32-9
Molecular Formula	C12H10O14Zn3 · 2H2O
Molecular Weight	610.37 g/mol (anhydrous basis)
Synonyms	Trizinc Dicitrate Dihydrate; Zinc Citrate Tribasic Dihydrate; Citric Acid, Zinc Salt (2:3), Dihydrate; 2-Hydroxy-1,2,3-propanetricarboxylic Acid, Zinc Salt (2:3), Dihydrate; Zinc Citrate (3:2) Dihydrate; Trizinc Citrate Dihydrate; Citrazinc
EINECS	227-842-3

Quality Control

Our Zinc Citrate Dihydrate is manufactured under strict quality management systems. It can be produced to meet various pharmacopeial standards such as USP-NF or FCC for food-grade applications, ensuring compliance with global regulatory requirements for purity and safety. Certificates of Analysis (COA) documenting key parameters are available for every batch upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture and potential caking.

Specification

Item	Specification
Appearance	White or almost white, crystalline powder
Identification (IR)	Conforms
Assay (Zn content)	30.0% - 34.0% (on dried basis)
Loss on Drying	5.0% - 8.0%
Heavy Metals (as Pb)	≤ 10 ppm
Lead (Pb)	≤ 3 ppm
Arsenic (As)	≤ 3 ppm
Cadmium (Cd)	≤ 1 ppm
Mercury (Hg)	≤ 1 ppm
Microbiological Total Plate Count	≤ 1000 cfu/g
Yeast & Molds	≤ 100 cfu/g

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.