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Uses Toxicity Hazards & Safety Information
Chemical Name:
Molecular Formula:
Formula Weight:
MOL File:


Melting point:
decomposes at 671℃ [JAN85]
white orthorhombic crystals
Water Solubility 
g/100g solution H2O: 13.6 (0°C), 22.8 (25°C), 24.0 (100°C); solid phase, FeSO4 · 7H2O (0°C, 25°C), FeSO4 ·H2O (100°C) [KRU93]
CAS DataBase Reference
7720-78-7(CAS DataBase Reference)
EWG's Food Scores
NIST Chemistry Reference
Ferrous sulfate(7720-78-7)
EPA Substance Registry System
Ferrous sulfate (7720-78-7)
  • Risk and Safety Statements
Risk Statements  25
Safety Statements  45
HS Code  28332910
Toxicity LD50 oral in rat: 319mg/kg

FERROUS SULFATE Chemical Properties,Uses,Production



LD50: 279 to 558 mg/kg (rat, oral, calculated as Fe).
GRAS (FDA, § 182.5315, §184.1315, 2000);
ADI 0.8 mg Fe/kg (calculated in terms of Fe; FAO/WHO, 2001);

Hazards & Safety Information

Category :Toxic substances
Toxicity classification: highly toxic
Acute Toxicity : Oral-Rat LD50 319 mg/kg; Oral-mouse LD50: 680 mg/kg
Flammability and Hazardous characteristics: Non-combustible with fire producing toxic iron-containing fumes
Storage and transportation characteristics  Treasury: low temperature, ventilated, dry; store separately from food raw materials.
Fire extinguishing agent : water, carbon dioxide, dry powder, sand
Occupational Standard  :TWA 1 mg (iron)/m3

Chemical Properties

Greenish or yellow-brown crystals or granules; odorless. Soluble in water with saline taste; insoluble in alcohol. hygroscopic.

Chemical Properties

Ferrous sulfate is a greenish or yellowish solid in fine or lumpy crystals.


Ferrous Sulfate is a nutrient and dietary supplement that is a source of iron. it is a white to grayish odorless powder. ferrous sulfate hep- tahydrate contains approximately 20% iron, while ferrous sulfate dried contains approximately 32% iron. it dissolves slowly in water and has high bioavailability. it can cause discoloration and rancidity. it is used for fortification of baking mixes. in the encapsulated form it does not react with lipids in cereal flours. it is used in infant foods, cereals, and pasta products.


Iron Supplement


Ferrous sulfate (FeSO4) is also known as iron sulfate or iron vitriol. It is used in the production of various chemicals, such as sulfur dioxide and sulfuric acid.


A rusty-brown solid prepared by the action of heat on iron(III) hydroxide or iron(II) sulfate. It occurs in nature as the mineral hematite. Industrially it is obtained by roasting iron pyrites. Iron(III) oxide dissolves in dilute acids to produce solutions of iron(III) salts. It is stable at red heat, decomposes around 1300°C to give triiron tetroxide, and can be reduced to iron by hydrogen at 1000°C. Iron(III) oxide is not ionic in character but has a structure similar to that of aluminum(III) oxide.


Copperas: an off-whitesolid, FeSO4.H2O; monoclinic; r.d.2.970. There is also a heptahydrate,FeSO4.7H2O; blue-green monoclinic;r.d. 1.898; m.p. 64°C. The heptahydrateis the best known iron(II) saltand is sometimes called green vitriolor copperas. It is obtained by the actionof dilute sulphuric acid on ironin a reducing atmosphere. The anhydrouscompound is very hygroscopic.It decomposes at red heat to giveiron(III) oxide, sulphur trioxide, andsulphur dioxide. A solution of iron(II)sulphate is gradually oxidized on exposureto air, a basic iron(III) sulphatebeing deposited.


Ingestion causes intestinal disorders.

Agricultural Uses

Copperas, also called green vitriol, is ferrous sulphate heptahydrate. It is an iron salt fertilizer, which is most effective in overcoming iron deficiency.

Agricultural Uses

Ferrous sulphate heptahydrate (FeSO4.7H2O), also called green vitriol or copperas, is a blue-green water-soluble crystal and is the best known ferrous salt. It is obtained by the action of dilute sulphuric acid on iron in a reducing atmosphere. The anhydrous compound is very hygroscopic. It gets oxidized gradually in an aqueous solution. On heating, the solid decomposes to give red ferric oxide, sulphur trioxide (SO3) and sulphur dioxide (SO2).

Safety Profile

A human poison by ingestion. Moderately toxic to humans by an unspecified route. An experimental poison by ingestion, intraduodenal, intraperitoneal, intravenous, and subcutaneous routes. Human systemic effects by ingestion: aggression, somnolence, brain recorlng changes, diarrhea, nausea or vomiting, bleedmg from the stomach, coma. Questionable carcinogen with experimental tumorigenic data. Experimental teratogenic and reproductive effects. Mutation data reported. Potentially explosive reaction with methyl isocyanoacetate at 25'. May igmte on contact with arsenic trioxide + sodium nitrate. When heated to decomposition it emits toxic fumes of SOx. See also IRON COMPOUNDS.

Potential Exposure

It is used as a fertilizer, food or feed additive; and in herbicides; process engraving; dyeing, and water treatment. A byproduct of various chemical and metal treating operations.

Veterinary Drugs and Treatments

While iron is a necessary trace element in all hemoglobin-utilizing animals, the use of therapeutic dosages of ferrous sulfate (or other oral iron) preparations in veterinary medicine is limited primarily to the treatment of iron-deficiency anemias in dogs (usually due to chronic blood loss), and as adjunctive therapy in cats when receiving epoetin (erythropoietin) therapy. Injectable iron products are usually used in the treatment of iron deficiency anemias associated with newborn animals.


Aqueous solution is acidic. Contact with alkalies form iron. Keep away from alkalies, soluble carbo nates; gold and silver salts; lead acetate; lime water, potassium iodide; potassium and sodium tartrate; sodium borate; tannin.

FERROUS SULFATE Preparation Products And Raw materials

Raw materials

Preparation Products


Global( 270)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Jiangsu Kolod Food Ingredients Co.,Ltd.
+86-518-85110578 18805133257
+86-518-85110578 [email protected] CHINA 100 60
Henan DaKen Chemical CO.,LTD.
[email protected] CHINA 21806 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 [email protected] CHINA 22631 55
Chemwill Asia Co.,Ltd.
86-21-51861608 [email protected];[email protected];[email protected];[email protected] CHINA 23978 58
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Beijing Ouhe Technology Co., Ltd 13552068683 010-82967028-
+86-10-82967029 [email protected] China 12495 60

View Lastest Price from FERROUS SULFATE manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2019-04-02 Ferrous sulfate Manufacturer; In stock GMP Factory
US $1.00 / KG 1KG High quality manufacturer TOP 3 largest production factory in China Chemwill Asia Co.,Ltd.
US $9.80 / KG 1g ≥99% 100kg Career Henan Chemical Co
2017-08-31 Technical Grade Food Grade Pharmaceutical Grade Ferrous Sulfate
US $12.00 / KG 25KG 86.0%--89.0% (FeSO4) 200 tons Jiangsu Kolod Food Ingredients Co.,Ltd.

7720-78-7(FERROUS SULFATE)Related Search:

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