Molekula
Zinc sulfate heptahydrate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Zinc sulfate heptahydrate is a hydrated inorganic salt used in agriculture, pharmaceuticals, and laboratory research as a source of zinc ions. It appears as colorless to white crystals or powder. CAS: 7446-20-0, Molecular formula: ZnSO4·7H2O, Molecular weight: 287.56 g/mol, Storage: Ambient. Molekula supplies Zinc sulfate heptahydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Often bought together
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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1 kg — £30.90 per pack ex VAT · £37.08 inc. VAT
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Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Identification | Conforms to reference |
| Assay (Titration) | ≥99% |
| Water (KF) | ≥40% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Neutral |
For research use only. Not for human use.
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 100 °C |
Source: PubChem CID 62640 (ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 14287755 |
| CAS Number | 7446-20-0 |
| IUPAC Name | zinc;sulfate;heptahydrate |
| Molecular Formula | ZnSO4·7H2O |
| Molecular Weight | 287.56 |
| Exact Mass | 285.9548 |
| SMILES | O.O.O.O.O.O.O.[O-]S(=O)(=O)[O-].[Zn+2] |
| InChIKey | RZLVQBNCHSJZPX-UHFFFAOYSA-L |
| InChI | InChI=1S/H2O4S.7H2O.Zn/c1-5(2,3)4;;;;;;;;/h(H2,1,2,3,4);7*1H2;/q;;;;;;;;+2/p-2 |
| PubChem CID | 62640 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| HTS Code | 2833294500 |
| Tariff Code | 2833292000 |
Safety & GHS
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Corrosive
GHS05
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Health Hazard
GHS07
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Hazardous to the Environment
GHS09
Hazard statements
- H302 Harmful if swallowed
- H318 Causes serious eye damage
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P501 Dispose of contents/container to an approved waste disposal plant
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 0.1M Zinc sulphate
- H14O11SZn
- Ophthazinc T (TN)
- Sulfato de zinc
- Sulfuric acid, zinc salt (1:1), heptahydrate
- VasoClear A
- White vitriol (heptahydrate)
- ZnSO4.7H2O
Frequently asked questions
What is zinc sulfate heptahydrate used for?
It is commonly used in agriculture as a zinc fertilizer, in medicine as a dietary supplement, and in industrial processes such as electroplating and dyeing.
What is the chemical formula and molecular weight of zinc sulfate heptahydrate?
The formula is ZnSO4·7H2O and the molecular weight is 287.56 g/mol.
How should zinc sulfate heptahydrate be stored?
It should be stored at ambient temperature, in a dry, well-ventilated area, away from incompatible materials.
What grade of zinc sulfate heptahydrate does Molekula supply?
Molekula supplies reagent grade zinc sulfate heptahydrate suitable for laboratory and industrial use.
Can Molekula supply zinc sulfate heptahydrate in bulk?
Yes, Molekula can supply zinc sulfate heptahydrate in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with a purchase of zinc sulfate heptahydrate?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.