Ferrous Sulphate Heptahydrate (FeSO4·7H2O)

Ferrous Sulphate Heptahydrate FeSO₄·7H₂O

Ferrous sulphate heptahydrate (FeSO₄·7H₂O) is a water-soluble blue-green crystal with min. 19.7% Fe and low contaminants. Kemindo supplies it as a water treatment coagulant, reducing agent, source of iron and for agriculture.

Business lines

Chemicals & Consumables

Categories

Chemicals

Industries

General industry

Availability

Available

Ferrous sulphate heptahydrate, also known as iron(II) sulphate heptahydrate, is a chemical compound with the formula FeSO₄·7H₂O. It is a hydrate, meaning it contains water molecules within its crystal structure. It appears as blue-green crystals or granules and is soluble in water. It is used in various applications, including as a reducing agent, a source of iron, in water treatment and in agriculture.

The advantages of our Ferrous Sulphate:

Higher iron content and purity: higher Fe²⁺ content (min. 19%) means better coagulation efficiency.
Low levels of contaminants such as heavy metals ensure safety in treated water.
Better solubility and dissolution rate: a proper crystalline structure ensures rapid dissolution.
Uniform particle size improves dosing accuracy and mixing.
Lower impurity profile: lower levels of contaminants such as manganese, aluminium or chromium.

Specifications Ferrous Sulphate Heptahydrate
Parameter	Value	Unit
Appearance	Blue–Green dry
FeSO₄·7H₂O	min 98.13	%
Fe	min 19.7	%
Sulphur (as S) percent by weight	min 10.5
pH (1% solution)	not less than 3.5
Moisture (% by weight)	max 1.5
Titanium dioxide	max 0.25
Free acid (HCl)	max 1
As %	max 0.0004
Pb %	max 0.002
Cd %	max 0.0005

Specifications Ferrous Sulphate Heptahydrate

Parameter

Value

Unit

Appearance

Blue–Green dry

FeSO₄·7H₂O

min 98.13

min 19.7

Sulphur (as S) percent by weight

min 10.5

pH (1% solution)

not less than 3.5

Moisture (% by weight)

max 1.5

Titanium dioxide

max 0.25

Free acid (HCl)

max 1

As %

max 0.0004

Pb %

max 0.002

Cd %

max 0.0005

Frequently asked questions

What is Ferrous Sulphate Heptahydrate used for?

Main applications: Reducing agent, Source of iron, Water treatment, Agriculture.

What are the specifications of Ferrous Sulphate Heptahydrate?

Appearance Blue–Green dry; FeSO₄·7H₂O min 98.13 %; Fe min 19.7 %; Sulphur (as S) percent by weight min 10.5; pH (1% solution) not less than 3.5; Moisture (% by weight) max 1.5. The full specification table is on this page.

What other names is Ferrous Sulphate Heptahydrate known by?

Ferrous Sulphate Heptahydrate is also known as: Ferro Sulfat Heptahidrat, FeSO4·7H2O, ferro sulfat, FeSO4 7H2O.

Where can I buy Ferrous Sulphate Heptahydrate / how do I request a quote?

Send a quote request through the form on this page, or contact the Kemindo sales team at sales@kemindogroup.com / +62 21 22510447. Prices are not published; quotes are given per request.