Ferrous Sulphate Heptahydrate AR/ACS 99.5%, 500 g

PRODUCT CODE : 529075

SYNONYMS : Iron (II) sulphate

CASR NO. : 7782-63-0

ATOMIC OR MOLECULAR FORMULA : FeSO4.7H2O O

ATOMIC OR MOLECULAR WEIGHT : 278.01

PROPERTIES : Insoluble in alcohol, mp 64C, Hygroscopic.

PARAMETER LIMIT

Description : Bluish green crystals or light green crystalline powder.

Solubility : 10% solution in a mixture of freshly boiled, cooled water and dilute sulphuric acid is clear and

bright.

Identification : Passes test.

Minimum Assay (Redox Titration) : 99.5%

.pH of (5% soln in water) : 3 - 4

MAXIMUM LIMIT OF IMPURITIES

Chloride (Cl) : 0.0005%

Nitrogen compound (N) : 0.001%

Arsenic (As) : 0.0002%

Copper (Cu) : 0.001%

Ferric ion (Fe3+) : 0.02%

Lead (Pb) : 0.0005%

Manganese (Mn) : 0.05%

Mercury (Hg) : 0.0002%

Zinc (Zn) : 0.005%

Organic volatile impurities : Excluded by Production process.

Nickel (Ni) : 0.005%

Phosphate (PO4) : 0.001%

Calcium (Ca) : 0.005%

Chromium (Cr) : 0.005%

Potassium (K) : 0.002%

Magnesium (Mg) : 0.008%

Sodium (Na) : 0.02%

Substances not precipitated by ammonia : 0.1%

Note :

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Ferrous Sulphate Heptahydrate AR/ACS 99.5%, 500 g

Ferrous Sulphate Heptahydrate AR/ACS 99.5%, 500 g

Rp 100

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