Key Properties of Zinc oxide
| Product Name: | Zinc Oxide |
| Synonyms: | ZnO, Zinc White, Flowers of Zinc |
| CAS No: | 1314-13-2 |
| Chemical Formula: | ZnO |
| Grade: | IP / BP / USP |
| Appearance: | White fine powder |
| Molar Mass: | 81.38 g/mol |
| Solubility: | Insoluble in water, soluble in acids |
| Melting Point: | 1975°C |
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WhatsappManufacturing process of Zinc oxide
Step 1: Raw Material Selection
- High-purity Zinc Ore or Zinc Metal is selected.
- Raw materials undergo strict quality checks for purity.
Step 2: Oxidation & Purification
- Zinc is oxidized at high temperatures to form Zinc Oxide (ZnO).
- The material is purified to remove impurities.
Step 3: Milling & Sieving
- The ZnO powder is milled and sieved to achieve the desired fine particle size.
Step 4: Quality Control & Testing
- The final product is tested for assay, particle size, pH, moisture content, and purity as per IP/BP/USP standards.
Step 5: Packaging & Storage
- Packed in HDPE bags or fiber drums to prevent contamination.
- Stored in a cool, dry place for maintaining stability.
Applications of Zinc oxide
Technical Specifications of Zinc oxide
Zinc Oxide IP Specification
Download Zinc Oxide IP Specification
| Sr. No. | Test | Specification |
|---|---|---|
| 1 | Description | Soft, white or faintly yellowish–white, amorphous powder, free from gritty particles. |
| 2 | Solubility | Practically insoluble in water and in ethanol (96 per cent). It dissolves in dilute mineral acids. |
| 3 | Identification by Flame test | Becomes yellow when Strongly heated and yellow colour disappear on cooling. |
| 4 | Identification by Zinc | It give reaction of Zinc salt. |
| 5 | Alkalinity | Passes test |
| 6 | Carbonates and substances insoluble in acids | Passes test |
| 7 | Arsenic | Not more than 5 ppm |
| 8 | Iron | Not more than 400 ppm |
| 9 | Lead | Passes test |
| 10 | Loss on ignition | Not more than 1.0% |
| 11 | Assay as ZnO on ignited basis | Not less than 99.00% and not more than 100.5% |
Zinc Oxide BP Specification
Download Zinc Oxide BP Specification
| Sr. No. | Test | Specification |
|---|---|---|
| 1 | Description | Soft, white or faintly yellowish–white, amorphous powder, free from gritty particles. |
| 2 | Solubility | Practically insoluble in water and in ethanol (96 per cent). It dissolves in dilute mineral acids. |
| 3 | Identification by Flame test | Becomes yellow when Strongly heated and yellow colour disappear on cooling. |
| 4 | Identification by Zinc | It give reaction of Zinc salt. |
| 5 | Alkalinity | Passes test |
| 6 | Carbonates and substances insoluble in acids | Passes test |
| 7 | Cadmium | Not more than 5 ppm |
| 8 | Lead | Not more than 10 ppm |
| 9 | Thallium | Not more than 5 ppm |
| 10 | Iron | Not more than 200 ppm |
| 11 | Loss on ignition | Not more than 1.0% |
| 12 | Assay as ZnO on ignited basis | Not less than 99.00% and not more than 100.5% |
Zinc Oxide USP Specification
Download Zinc Oxide USP Specification
| Sr. No. | Test | Specification |
|---|---|---|
| 1 | Description | Soft, white or faintly yellowish–white, amorphous powder, free from gritty particles. |
| 2 | Solubility | Practically insoluble in water and in ethanol (96 per cent). It dissolves in dilute mineral acids. |
| 3 | Identification by Flame test | Becomes yellow when Strongly heated and yellow colour disappear on cooling. |
| 4 | Identification by Zinc | It give reaction of Zinc salt. |
| 5 | Arsenic | Not more than 6 ppm |
| 6 | Lead | Passes test |
| 7 | Iron and other heavy metals | Passes test |
| 8 | Alkalinity | Passes test |
| 9 | Carbonates and substances insoluble in acids | Passes test |
| 10 | Loss on ignition | Not more than 1.0% |
| 11 | Assay as ZnO on ignited basis | Not less than 98.00% and not more than 102.00% |
Packing and Storage condition of Zinc oxide
Packing:
Zinc Oxide is typically packed in 25 kg or 50 kg HDPE bags with an inner polythene liner to prevent moisture absorption and contamination.
Storage:
Store Zinc Oxide in a cool, dry, well-ventilated area, away from heat sources, direct sunlight, and moisture.
Why Choose Chemignition for
Zinc oxide Supply?
Quality Assurance
Grade Compliance
Zinc oxide 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 oxide 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.
