Overview
Zinc acetate dihydrate (CAS 5970-45-6 ) is an inorganic zinc salt supplied as a crystalline solid with established use across pharmaceutical, food, and industrial manufacturing sectors.
It delivers zinc as a bioavailable source for nutritional supplementation and functions as a catalyst precursor, pH buffer, and preservative across multiple formulation types and chemical processes.
In pharmaceuticals, it is used as an active ingredient in zinc deficiency treatments and as an excipient in topical formulations where controlled zinc release is required for therapeutic efficacy.
Food and feed manufacturers use it as a zinc fortification agent in nutritional products, dietary supplements, and animal feed premixes to ensure proper mineral intake and health maintenance.
In polymer and plastics processing, it acts as a catalyst precursor for polymerization reactions and as a stabilizer component to improve the durability and performance of synthetic materials.
Personal care formulators incorporate it into oral care products and astringent preparations where its buffering and mild preservative properties support product stability and user safety.
Zinc acetate dihydrate is available as a white crystalline powder or granules. Recognized grades include USP , BP , Ph. Eur. , FCC , and technical grade for diverse sourcing needs.
These standards support sourcing across regulated pharmaceutical, food, and industrial applications. Purity specifications typically range from 98% to 101% on a dry basis depending on the grade.
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Physical Properties
| Melting Point | 237 °C |
| Boiling Point | 242-4°C |
| Density | 1.84 |
| Appearance | Colourless or white efflorescent crystals with a f |
| Color | White |
| Odor | Acetic acid odour |
| Form | Solid |
| Water Solubility | 430 g/L (20 ºC) |
| pH | 6.0-8.0 (25℃, 50mg/mL in H2O) |
| Log P | -0.285 (est) |
Safety & Handling
Danger GHS05 GHS07 GHS09 Hazard Statements H302 Harmful if swallowed H315 Causes skin irritation H318 Causes serious eye damage H319 Causes serious eye irritation H400 Very toxic to aquatic life H410 Very toxic to aquatic life with long lasting effects H411 Toxic to aquatic life with long lasting effects Precautionary Statements P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P317 Get emergency medical help. P321 Specific treatment (see … on this label). P330 Rinse mouth. P391 Collect spillage. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P332+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 29152900 |
| UN Number | 3077 |
| ADR Class | 9 |
| Packing Group | III |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 3 |
Other Names
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Chemical Properties
- CAS Number
- 5970-45-6
- EC Number
- 611-865-4
- Mol. Weight
- 143.4
- HS Code
- 29152900
- Category
- Salts & Minerals