Description
Zinc sulphate heptahydrate is a high-purity inorganic salt supplied at a minimum assay of 99,5 % in p.a. and ACS quality. The empirical formula is ZnSO₄ · 7 H₂O, with CAS number 7446-20-0, molar mass 287,54 g/mol and density 1,97 g/cm³. These specifications support accurate preparation of zinc standards, reagent solutions and analytical media in chemical and quality-control laboratories. The product is p.a. and ACS grades make it suitable for inorganic analysis, method development and applications that require a well-defined zinc(II) sulphate hydrate. Typical laboratory tasks include preparing stock solutions, supporting titrimetric or spectroscopic workflows and maintaining consistent reagent quality across batches. Identity data such as EG number 231-793-3 and UN number 3077 assist safe handling documentation and regulatory classification. The heptahydrate form dissolves readily for aqueous work and integrates smoothly into existing salt inventories for analysis-grade reagents.
This article is part of Inorganic salts, in Inorganic chemicals.
Key features
- Assay (compl.): ≥99,5 %
- pH value (5 % in H2O): 4,4-6,0
- In H2O insoluble matter: ≤0,005 %
- Total nitrogen (as N): ≤0,0005 %
- Chloride (Cl): ≤0,0005 %
- Arsenic (As): ≤0,00005 %
- Lead (Pb): ≤0,002 %
- Cadmium (Cd): ≤0,001 %
- Calcium (Ca): ≤0,001 %
- Iron (Fe): ≤0,0005 %
- CAS number: 7446-20-0
- Pack sizes: 500 g, 1 kg, 2.5 kg, 25 kg
- EG nr.: 231-793-3
- Empirical formula: ZnSO₄ · 7 H₂O
- Molar mass: 287,54 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
Danger
Hazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about Zinc sulphate heptahydrate, min. 99,5 %, p.a., ACS, 500 g, plastic
What is this article?
Zinc sulphate heptahydrate, min. 99,5 %, p.a., ACS, 500 g, plastic is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Inorganic salts, inside Inorganic chemicals, in Lab chemicals.
An inorganic salt is an ionic solid, a chloride, a sulfate, a nitrate, a phosphate. The degree of hydration changes the mass that contains one mole of the ion. Analytical grade limits the foreign ions. A hydrate and the anhydrous salt are not interchangeable by weight.
An inorganic chemical is a salt, an acid or base in solid form, a metal, an oxide, or an element. The waters of hydration are part of the formula: a hydrate and an anhydrous salt are different masses for the same ion. Trace metals matter when the salt will be used in analysis. Nanomaterials add particle size to the specification. Look the substance up on PubChem. Hazard classes are on ECHA, under the CLP Regulation and REACH. Transport of the dangerous ones is explained by the UNECE.
Which category should I open next?
The category is Inorganic chemicals. The sub-category is Inorganic salts. The catalogue is Lab chemicals.
Shelves beside this one are Metals, elements & oxides and Nanomaterials & quantum dots.
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