Ferrous Sulfate

short description:

Ferrous sulfate is an inorganic substance, the crystalline hydrate is heptahydrate at normal temperature, commonly known as “green alum”, light green crystal, weathered in dry air, the surface oxidation of brown basic iron sulfate in humid air, at 56.6℃ to become tetrahydrate, at 65℃ to become monohydrate. Ferrous sulfate is soluble in water and almost insoluble in ethanol. Its aqueous solution oxidizes slowly in air when it is cold, and oxidizes faster when it is hot. Adding alkali or exposure to light can accelerate its oxidation. The relative density (d15) is 1.897.

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Specifications provided

Anhydrous content ≥99%

Monohydrous content ≥98%

Trihydrate content ≥96%

Pentahydrate content ≥94%

Heptahydrate content ≥90%

(Scope of application reference ‘product usage’)

Powdered ferrous sulfate can be directly water soluble, particles need to be ground up after water soluble, will be slower, of course, particles than powder is not easy to oxidize yellow, because ferrous sulfate for a long time will oxidize yellow, the effect will become worse, short-term can be used up then recommended to use powder.

EVERBRIGHT® ‘ll also provide customized ：content/whiteness/particlesize/PHvalue/color/packagingstyle/ packaging specifications and other specific products that are more suitable for your use conditions , and provide free samples.

Product Parameter

CAS Rn

7720-78-7

EINECS Rn

231-753-5

FORMULA wt

151.908

Product Usage

Urban/industrial water treatment
It is used for the flocculation purification of water, as well as the removal of phosphate from municipal and industrial sewage to prevent the eutrophication of water bodies.
Colorant
Used in the production of iron tannate ink and other inks. Mordant for wood dyeing also contains ferrous sulfate. It is also used to stain concrete a yellow rust color. Woodworkers use ferrous sulfate to tint maple with silver.
Reductant
Used as a reducing agent, mainly reducing chromate in cement.

Regulating soil pH
Promote chlorophyll formation (also known as iron fertilizer), can prevent flowers and trees due to iron deficiency caused by yellowing disease. It is an indispensable element of acid-loving flowers and trees, especially iron trees. Agriculture can also be used as a pesticide, can prevent wheat smut, apple and pear scab, fruit tree rot; It can also be used as fertilizer to remove moss and lichen from tree trunks. Alkaline soil improver, promote farm fertilizer maturation, improve plant production conditions and so on.

Nutritional supplement
Used as a nutritional supplement, such as iron enhancer, fruit and vegetable hair color agent (is a trace element fertilizer, has accelerated rice, beet greening).