Zinc Sulfate Heptahydrate Manufacturers Exporters

Muby Chemicals and a few more manufacturing units are in Mubychem Group, the pioneer manufacturer of Zinc Sulfate Heptahydrate Monohydrate Anhydrous in India since 1976. Currently we have manufacturing facilities spread across Western India. No other vendor in the world knows Zinc Sulfate any better than we do. We are exporters to all the countries across the globe.
(FDA) GMP Approved units in the group and ISO-9001 Certificate, "REACH" Registered, ISO-22000, Kosher Certified' Halal Certified, HACCP

Zinc Sulfate Sulphate Heptahydrate Manufacturers, Supplier Exporters

CAS Number monohydrate 7446-19-7, CAS: heptahydrate 7446-20-0, EINECS EC Number 231-793-3, HS Code 283329**, Molecular Weight 287.54, Chemical Formula ZnSO4-7H2O

Specifications of Zinc Sulphate Heptahydrate IP Grade:
Assay as ZnSO4-7H2O: 99.0 – 104.0 (as ZnSO4.7H2O.)
Description Zinc Sulfate: Colourless, transparent crystals or white, crystalline powder.
Solubility: Very soluble in water; practically insoluble in ethanol (95%).
pH of Zinc Sulfate or Zinc Sulphate: 4.4 to 5.6
Clarity and Colour of Solution: Clear & colourless solution (10% w/w of Zinc Sulfate or Zinc Sulphate).
Arsenic: 10 ppm maximum.
Iron: 100 ppm maximum.
Chloride: 250 ppm maximum.

Zinc Sulphate Heptahydrate BP
ZnSO4-7H2O -- 287.5 -- CAS 7446-20-0
Action and use: Astringent.

DEFINITION
Content: 99.0 per cent to 104.0 per cent Zinc Sulphate Heptahydrate ( Zinc Sulfate Heptahydrate ).

CHARACTERS
Appearance: White or almost white, crystalline powder or colourless, transparent crystals, efflorescent.
Solubility: Very soluble in water, practically insoluble in alcohol.

IDENTIFICATION
A. Solution S (see Tests) gives the reactions of sulphates.
B. Solution S gives the reaction of zinc.
C. It complies with the limits of the assay.

TESTS
Solution S: Dissolve 2.5 g in carbon dioxide-free water and dilute to 50 ml with the same solvent.
Appearance of solution: Solution S is clear and colourless.
pH: 4.4 to 5.6 for solution S.
Chlorides: Maximum 300 ppm.
Iron: Maximum 100 ppm.

Zinc Sulfate USP
ZnSO4-xH2O.
Sulfuric acid, zinc salt (1:1), hydrate.
Zinc sulfate (1:1) monohydrate 179.46
Zinc sulfate (1:1) heptahydrate 287.56 [CAS 7446-20-0]
Anhydrous 161.46 [CAS 7733-02-0]

Zinc Sulfate contains one or seven molecules of water of hydration. The monohydrate contains not less than 89.0 percent and not more than 90.4 percent of ZnSO4, corresponding to not less than 99.0 percent and not more than 100.5 percent of ZnSO4·H2O, and the heptahydrate contains not less than 55.6 percent and not more than 61.0 percent of ZnSO4, corresponding to not less than 99.0 percent and not more than 108.7 percent of ZnSO4·7H2O.

Identification: A solution of it responds to the tests for Zinc and for Sulfate.
Acidity: A solution containing the equivalent of 28 mg of ZnSO4 per mL is not colored pink by methyl orange.
Arsenic: the limit is 14 ppm.
Lead— The lead limit is 0.002%.
Alkalies and alkaline earths: Dissolve the equivalent of 1.12 g of ZnSO4 in about 150 mL of water contained in a 200-mL volumetric flask. Precipitate the zinc completely by means of ammonium sulfide TS, and dilute with water to volume. Mix, and filter through a dry filter, rejecting the first portion of the filtrate. To 100 mL of the subsequent filtrate add a few drops of sulfuric acid, evaporate to dryness in a tarred dish, and ignite: the weight of the residue does not exceed 5 mg (0.9%).

DESCRIPTION
Zinc Sulfate occurs as colorless, transparent prisms or small needles, or as a granular, crystalline powder. It contains one or seven molecules of water of hydration. The monohydrate loses water at temperatures above 238°; the heptahydrate effloresces in dry air at room temperature. Its solutions are acid to litmus. The monohydrate is soluble in water and practically insoluble in alcohol. One gram of the heptahydrate dissolves in about 0.6 mL of water and in about 2.5 mL of glycerin; it is insoluble in alcohol.
Function: Nutrient.

REQUIREMENTS
Identification: A 1:20 aqueous solution gives positive tests for Zinc and for Sulfate.
Assay: Monohydrate: Not less than 98.0% and not more than 100.5% of ZnSO4·H2O; Heptahydrate: Not less than 99.0% and not more than 108.7% of ZnSO4·7H2O.
Acidity: Passes test.
Alkalies and Alkaline Earths: Not more than 0.5%.
Cadmium: Not more than 2 mg/kg.
Lead: Not more than 4 mg/kg.
Mercury: Not more than 5 mg/kg.
Selenium: Not more than 0.003%.

Zinc Sulfate Analytical Reagent
Zinc Sulfate Heptahydrate
ZnSO4-7H2O
Formula Weight 287.56
CAS Number 7446-20-0

REQUIREMENTS
Assay: 99.0-103.0% ZnSO4-7H2O
pH of a 5% solution: 4.4-6.0 at 25C

MAXIMUM ALLOWABLE
Insoluble matter: 0.01%
Chloride (Cl): 5 ppm
Nitrate (NO3): 0.002%
Ammonium (NH4): 0.001%
Calcium (Ca): 0.005%
Iron (Fe): 0.001%
Lead (Pb): 0.003%
Magnesium (Mg): 0.005%
Manganese (Mn): 3 ppm
Potassium (K): 0.01%
Sodium (Na): 0.05%

We also manufacture and supply Micro-Encapsulated Zinc Sulphate, having core os zinc sulfate and coating of vegetable oil or mono and diglycerides or as desired by the buyer.

Zinc Sulfate Sulphate Heptahydrate Manufacturers at:

MUBY CHEMICALS
MUMBAI 400009, INDIA
TEL: (OFFICE) +91-22-23770100, +91-22-23726950, +91-22-23774610, +91-22-23723564. FAX: +91-22-23728264

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