Character
1.All grades are odorless white or colorless crystalline solids with a slight metallic astringent taste.
2.Good water solubility, easy to disperse in powder blends and reconstituted liquid systems.
3.Provides bioavailable zinc mineral to support nutritional fortification in functional foods and nutraceuticals.
4.Functions as acidity regulator to adjust and stabilize pH, balancing sourness and protecting formulation stability.
5.Exhibits good powder flow characteristics and helps reduce agglomeration during mixing, filling and storage.
6.Three crystal forms are available to match different requirements on zinc content, moisture resistance and processing temperature.
7.Food and pharmaceutical grades comply with global standards for mineral fortifiers and food additives.
Main Functions
1.Zinc Fortification Function: Reliable inorganic zinc mineral source for nutritional enrichment in food, beverage and dietary supplement formulations, supplying essential zinc nutrition.
2.pH Adjusting & Buffering Function: Works as acidity regulator to adjust and stabilize pH value in food systems, balancing sour taste and improving formulation stability.
3.Anti-Caking & Flow-promoting Function: Improves powder flowability and prevents powder agglomeration in mineral premixes, blended powder products and tablet formulations.
4.Firming Function: Acts as firming agent to maintain texture stability in processed solid food systems.
Applications
1.Food & Dietary Supplement Industry
This Zinc Sulfate series is widely used in dietary supplements, multivitamin and mineral powder premixes, solid beverages, tablets, breakfast cereals and blended powder products.
Zinc Sulfate Heptahydrate Suitable for standard dietary supplement tablets, hard capsules, compound mineral premixes and solid beverage formulations. It features stable crystal form, good water solubility and excellent powder flowability, compatible with most common food production processes. It is easy to mix uniformly with other vitamins and minerals for mass production.
Zinc Sulfate Monohydrate Selected for production under high humidity and high-temperature tableting conditions. Its low hygroscopicity minimizes moisture absorption and caking risk during long-term storage, ideal for formulas requiring higher zinc loading.
Zinc Sulfate Anhydrous Applied in moisture-sensitive high-end nutritional formulations. It delivers the highest zinc content among the three grades; its strong hygroscopicity requires strict sealed packaging and dry storage environment.
2.Confectionery & Cereal Food
Suitable for fortified cereals, pressed candies and functional snack powders. It achieves zinc fortification and pH regulation without disrupting the original flavor and texture of finished goods.
3.Pharmaceutical Industry
Pharma-grade Zinc Sulfate (mainly Heptahydrate and Monohydrate) is used in oral nutritional preparations, with limited consumption and not our primary business focus.
Packaging and Storage
Packaging: 25kg multi-ply paper bags with inner PE liner; jumbo bags (500kg/1000kg) for bulk shipment; fiber drum packaging available for pharmaceutical-grade products.
Storage Requirements: Store in cool, dry, ventilated warehouse. Keep away from moisture, strong acid substances, direct sunlight and high heat environment. Anhydrous grade requires extra sealed protection due to strong hygroscopicity.
| Product Name: | Zinc sulfate heptahydrate | Other Name: | Sulfuric acid,zinc salt,hydrate (1:1:7);Sulfuric acid,zinc salt (1:1),heptahydrate;White vitriol;Zinc sulfate heptahydrate;Zinc vitriol;Zinc sulfate (ZnSO4) heptahydrate;Zinc(II) sulfate heptahydrate;ZnSO4·7H2O;Zinc sulfate heptahydrate ZnSO4·7H2O;57130-83-3;57130-85-5;223776-82-7;2319654-25-4 |
| CAS No.: | 7446-20-0 | Molecular Formula: | H2O4S.7H2O.Zn |
| InChIKeys: | InChIKey=NNZHJLSOHIKBPJ-UHFFFAOYSA-N | Molecular Weight: | 287.55000 |
| Exact Mass: | 285.95500 | EC Number: | 616-097-3 |
| UNII: | N57JI2K7WP | ICSC Number: | 0349 |
| DSSTox ID: | DTXSID0040175 | HScode: | 2833293000 |
| Categories: | Fertilizers |
| PSA: | 153.25000 | XLogP3: | -0.70980 |
| Appearance: | Liquid | Density: | 3″>1.97 g/cm3 |
| Melting Point: | 100 °C | Boiling Point: | 330ºC at 760 mmHg |
| Water Solubility: | H2O: 960 g/L | Storage Conditions: | Store at RT. |
| Toxicity: | LD50 orally in Rabbit: 1260 mg/kg |
Classification of the substance or mixture
Acute toxicity – Category 4, Oral
Serious eye damage, Category 1
Hazardous to the aquatic environment, short-term (Acute) – Category Acute 1
Hazardous to the aquatic environment, long-term (Chronic) – Category Chronic 1
GHS label elements, including precautionary statements
| Pictogram(s) |    |
|---|---|
| Signal word |
Danger |
| Hazard statement(s) |
H302 Harmful if swallowed H318 Causes serious eye damage H410 Very toxic to aquatic life with long lasting effects |
| Precautionary statement(s) | |
| Prevention |
P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/… P273 Avoid release to the environment. |
| Response |
P301+P317 IF SWALLOWED: Get medical help. P330 Rinse mouth. P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P317 Get medical help. P391 Collect spillage. |
| Storage |
none |
| Disposal |
P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal. |
Other hazards which do not result in classification
no data available
Precautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Well closed. Store in an area without drain or sewer access.