Ferrous sulfate heptahydrate CAS 7782-63-0

Short Description:

Product name: Ferrous sulfate heptahydrate
CAS No.: Heptahydrate: 7782-63-0 ; Dried: 7720-78-7
Molecular formula: FeSO₄·7H₂O ; FeSO₄·nH₂O
Molecular weight: Heptahydrate :278.01

Heptahydrate: It's blue-green crystals or granules, odorless with astringency. In dry air, it's efflorescent. In moist air, it oxidizes readily to form a brown-yellow, basic ferric sulfate. It's soluble in water, insoluble in ethanol.
Dried: It's gray-white to beige powder.with astringency.It is mainly composed of FeSO₄·H₂O and contains a few of FeSO₄·4H₂O.It's slowly soluble in cold water (26.6 g / 100 ml, 20 ℃), It will be dissolved quickly when heating.It's insoluble in ethanol.Almost insoluble in 50% sulfuric acid.

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Specification

Specification		GB29211-2012	FCC VII
Content,w/%	Heptahydrate (FeSO₄·7H₂O)	99.5-104.5	99.5-104.5
Content,w/%	Dried (FeSO₄)	86.0-89.0	86.0-89.0
Lead(Pb),mg/kg ≤		2	2
Arsenic (As),mg/kg ≤		3	————
Mercury (Hg),mg/kg ≤		1	1
Acid Insoluble(Dried), w/% ≤		0.05	0.05

Usage

It is used as nutritional supplement(iron fortifier) and fruit and vegetable colorant.

Storage and transport

It should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation,unloaded with care so as to avoid damage.Furthermore, it must be stored separately from poisonous substances.

Packaging
25kg/bag or according to customer's needs