Acids & Salts Available — Bulk Only

Zinc Sulfate Heptahydrate (Zinc Sulphate, White Vitriol)

CAS 7446-20-0 · Formula H14O11SZn · MW 287.6 g/mol

A water-soluble zinc salt for agriculture, feed, and electroplating. It is used as a soil amendment and fertilizer to correct zinc deficiency, as a zinc source in animal feed, and as a zinc-plating bath electrolyte.

Safety Data Sheet
HS Code
2833.29
At a Glance
Material Family
Acids & Salts
Record Type
Pure compound
Primary Role
pH Adjustment · Synthesis Intermediate
Applications & Use Cases
  • Agriculture: Soil amendment and fertilizer for zinc correction.
  • Animal feed: Zinc micronutrient source.
  • Electroplating: Zinc-plating bath electrolyte.
  • Industry: Chemical intermediate and mordant.
Physical Properties
Melting Point
100 °C
Density
1.97 g/cm³
Solubility
Solubility in water, g/100ml at 20 °C: 54
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2833 . 29
Chapter 28
Inorganic chemicals; compounds of precious metals and rare-earth metals
Heading 28.33
Internationally harmonized (WCO HS)
Subheading 2833.29
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
7446-20-0
Molecular Formula
H14O11SZn
Molecular Weight
287.6 g/mol
IUPAC Name
zinc;sulfate;heptahydrate
PubChem CID
InChI Key
RZLVQBNCHSJZPX-UHFFFAOYSA-L
Synonyms & Trade Names
ZINC SULFATE HEPTAHYDRATE Sulfuric acid, zinc salt (1:1), heptahydrate ZINCUM SULPHURICUM Zinc Sulfate Hydrate zinc;sulfate;heptahydrate zinc sulphate heptahydrate Zinc sulfate (heptahydrate) Zincsulfateheptahydrate Sulfato de zinc Zinc vitriol (heptahydrate) White vitriol (heptahydrate)
Full Description

Zinc sulfate heptahydrate (CAS 7446-20-0), the hydrated zinc salt of sulfuric acid. It is used as a soil amendment and fertilizer to correct zinc deficiency, as a zinc source in animal feed, and as a zinc-plating bath electrolyte. It also serves as a chemical intermediate and mordant.

Frequently Asked Questions

What is zinc sulfate heptahydrate used for?

Zinc sulfate heptahydrate (CAS 7446-20-0) is used as a soil amendment and fertilizer to correct zinc deficiency, a zinc source in animal feed, a zinc-plating bath electrolyte, and a chemical intermediate and mordant. RawSource supplies it as a bulk agricultural and industrial raw material.

Is zinc sulfate heptahydrate the same as zinc sulfate?

It is the heptahydrate form of zinc sulfate, ZnSO4·7H2O, carrying seven waters of crystallization. It contains the same zinc sulfate but with lower zinc content per gram than the anhydrous or monohydrate forms; specify the hydrate that matches your formulation.

What is zinc sulfate heptahydrate commonly known as?

It is sometimes referred to as white vitriol or zinc vitriol, the hydrated crystalline zinc sulfate (CAS 7446-20-0, formula ZnSO4·7H2O). RawSource identifies material by CAS and assay to avoid ambiguity.

Is zinc sulfate heptahydrate water soluble?

Yes. The heptahydrate is highly water soluble, which suits its use in liquid fertilizers, foliar sprays, feed premix solutions, and plating electrolytes.

What is the HS code for zinc sulfate heptahydrate?

It classifies under HS 2833.29 (sulphates, other, of zinc). Confirm the final tariff classification with your customs broker for the destination, and request a bulk quote with CoA and SDS.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.