Key Properties of Zinc Citrate
| Parameter | Details |
|---|---|
| Product Name | Zinc Citrate |
| Synonyms | Zinc Salt of Citric Acid, Trizinc Dicitrate |
| CAS No. | 546-46-3 |
| Chemical Formula | C₁₂H₁₀Zn₃O₁₄ |
| Grade | USP |
| Appearance | White to off-white crystalline powder |
| Molar Mass | 574.35 g/mol |
| Solubility | Slightly soluble in water; practically insoluble in ethanol |
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WhatsappZinc Citrate Manufacturing process
Zinc Citrate is manufactured through a controlled neutralization and crystallization process to ensure high purity, consistent quality, and compliance with pharmaceutical, nutraceutical, and food-grade standards.
Step 1: Raw Material Selection
High-quality citric acid and a suitable zinc source are carefully selected and tested to ensure they meet the required quality specifications.
Step 2: Preparation of Solution
Citric acid is dissolved in purified water to prepare a clear solution. The zinc source is separately prepared in the required concentration.
Step 3: Controlled Reaction
The zinc solution is gradually added to the citric acid solution under continuous stirring. The reaction is carried out under controlled temperature and pH conditions to ensure complete formation of Zinc Citrate.
Step 4: Purification
The reaction mixture is purified to remove unreacted materials and process-related impurities, resulting in a high-purity solution.
Step 5: Crystallization
The purified solution is concentrated and cooled under controlled conditions, allowing Zinc Citrate crystals to form with the desired purity and particle size.
Step 6: Filtration
The Zinc Citrate crystals are separated from the mother liquor using suitable filtration equipment and washed with purified water to remove residual impurities.
Step 7: Drying
The filtered Zinc Citrate is dried under controlled temperature conditions until the required moisture content is achieved. The dried product is then ready for milling, quality testing, and packaging.
Zinc Citrate Applications
Pharmaceutical Applications
Zinc Source in Pharmaceutical Formulations
Oral Pharmaceutical Formulations
Mineral and Combination Formulations
Nutraceutical Applications
Zinc Supplement Formulations
Mineral and Multimineral Supplements
Nutritional Formulations
Oral Care Applications
Toothpaste Formulations
Mouthwash and Oral Hygiene Products
Plaque and Tartar-Control Formulations
Food and Nutritional Applications
Zinc Fortification
Mineral Fortification
Chemical and Laboratory Applications
Zinc and Citrate Source
Laboratory and Research Use
Zinc Citrate Specifications
| Sr. No. | Test | Specification |
|---|---|---|
| 1 | Description | White to off-white crystalline powder |
| 2 | Identification | Complies with the test for Zinc and Citrate |
| 3 | Assay | 98.0% – 102.0% (on dried basis) |
| 4 | Loss on Drying | Not more than 5.0% |
| 5 | pH (5% Suspension) | 4.0 – 6.5 |
| 6 | Solubility | Slightly soluble in water; practically insoluble in ethanol |
| 7 | Chloride (Cl⁻) | Not more than 500 ppm |
| 8 | Sulphate (SO₄²⁻) | Not more than 500 ppm |
| 9 | Heavy Metals | Not more than 20 ppm |
| 10 | Iron (Fe) | Not more than 50 ppm |
| 11 | Lead (Pb) | Not more than 2 ppm |
| 12 | Arsenic (As) | Not more than 3 ppm |
| 13 | Residue on Ignition | Not more than 0.2% |
Zinc Citrate USP Specification
Download Zinc Citrate USP Specification
| Sr. No. | Test | Specification |
|---|---|---|
| 1 | Description | White to off-white powder. |
| 2 | Solubility | Slightly soluble in water |
| 3 | Identification by Zinc. | It gives reaction of Zinc. |
| 4 | Identification by Citrate. | It gives reaction of Citrate. |
| 5 | Chloride | Not more than 0.05% |
| 6 | Sulphate | Not more than 0.05% |
| 7 | Arsenic | Not more than 3 ppm |
| 8 | Cadmium | Not more than 5 ppm |
| 9 | Lead | Not more than 10 ppm |
| 10 | Loss on Drying | Not more than 1.0% |
| 11 | Total Aerobic Microbial Count | Not more than 10³ cfu/g |
| 12 | Total Combined Yeasts and Molds | Not more than 10² cfu/g |
| 13 | Escherichia coli | Absent |
| 14 | Assay – Zinc (dried basis) | Not less than 31.30% |
Zinc Citrate Packing and Storage condition
Packing:
Packed in 25 kg / 50 kg HDPE bags with inner liner.
Available in fiber drums or customized packaging as per customer requirements.
Tamper-proof and moisture-resistant packaging ensures product stability.
Storage:
Store in a cool, dry, and well-ventilated area away from moisture.
Keep the container tightly closed to prevent contamination.
Avoid exposure to direct sunlight and incompatible materials (such as strong acids).
Recommended storage temperature: Below 30°C.
Zinc Citrate MSDS/SDS
Why Choose Chemignition for
Zinc Citrate Supply?
Quality Assurance
Grade Compliance
Zinc Citrate is manufactured in adherence to stringent global pharmaceutical standards.
In-House Quality Control
Each batch undergoes rigorous testing for purity, stability, and efficacy.
Regulatory Approvals
Certified for export and compliant with international regulatory requirements.
Large-Scale Manufacturing and Export
Grade Compliance
Zinc Citrate is manufactured in adherence to stringent global pharmaceutical standards.
In-House Quality Control
Each batch undergoes rigorous testing for purity, stability, and efficacy.
Regulatory Approvals
Certified for export and compliant with international regulatory requirements.
