Zinc Sulphate CAS#7733-02-0
High-Purity Water-Soluble Crystals – White crystalline zinc sulfate with excellent solubility, commonly supplied as stable heptahydrate (ZnSO₄·7H₂O).
Thermal Dehydration Stability – Gradually loses water above 30 °C and converts to anhydrous form at high temperature, offering predictable behavior during processing.
Traditional & Industrial Applications – Formerly known as white vitriol, widely used as a mordant in dyeing and as a styptic for bleeding control.
Reliable Chemical Performance – Produced from zinc sulfide ore with consistent quality for laboratory, pharmaceutical, and industrial uses.
Products Description of Zinc Sulphate CAS#7733-02-0
Zinc sulphate is a white, crystalline, water-soluble compound produced by heating zinc sulfide ore in air, followed by dissolution and recrystallization. It is most commonly supplied as the heptahydrate (ZnSO₄·7H₂O) with a relative density of about 1.9.
When heated above 30 °C, it gradually loses water to form the hexahydrate, and above 70 °C converts to the monohydrate. The anhydrous salt forms at around 280 °C and decomposes at temperatures above 500 °C. Formerly known as white vitriol, zinc sulphate is widely used as a mordant in dyeing and as a styptic for controlling bleeding.
Parameters
| Melting point | 100°C |
| Boiling point | 105°C (estimate) |
| density | 1.31 g/mL at 20 °C |
| storage temp. | Store at +15°C to +25°C. |
| solubility | H2O: soluble |
| form | Liquid |
| color | Colorless |
| PH | 4.0±0.5 |
| Water Solubility | Soluble |
| λmax | λ: 260 nm Amax: <0.02 |
| λ: 280 nm Amax: <0.02 | |
| Merck | 1,410,159 |
| LogP | -1.031 (est) |
| CAS DataBase Reference | 7733-02-0(CAS DataBase Reference) |
| NIST Chemistry Reference | Zinc sulfate(7733-02-0) |
| EPA Substance Registry System | Zinc sulfate (7733-02-0) |
Safety Information
| Hazard Codes | Xn,N,Xi |
| Risk Statements | 52/53-50/53-41-22-51/53 |
| Safety Statements | 61-39-26-60 |
| RIDADR | UN 3082 9/PG 3 |
| WGK Germany | 3 |
| RTECS | ZH5260000 |
| TSCA | Yes |
| HS Code | 2833 29 20 |
| HazardClass | 9 |
| PackingGroup | III |
| Hazardous Substances Data | 7733-02-0(Hazardous Substances Data) |
Product Application of Zinc Sulphate CAS#7733-02-0
Zinc sulphate is widely used as a component of culture media for in vitro fungal hyphal growth assays and as a nutritional supplement in expression media together with IPTG for the production of zinc-containing proteins. It is also applied in analytical laboratories in combination with barium hydroxide for deproteinization of whole blood, plasma, or serum samples by barium sulfate precipitation, producing a clear supernatant suitable for glucose determination using the Somogyi–Nelson method.
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