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Ferrous sulfate heptahydrate

Solubility in water (g/100mL) Chemical properties Applications Preparation Category Toxicity Grading Acute Toxicity Flammability Hazardous Characteristics Storage and Transport Extinguishing Agent
Ferrous sulfate heptahydrate
Ferrous sulfate heptahydrate
Chemical Name:
Ferrous sulfate heptahydrate
25lbs;Fesofor;Ironate;FERROIN;Haemofort;Presfersul;Ironvitrol;Ccris 7331;Greenvitrol;M/40-FERROIN
Molecular Formula:
Formula Weight:
MOL File:

Ferrous sulfate heptahydrate Properties

Melting point:
64 °C
1.897 g/mL at 25 °C
vapor pressure 
14.6 mm Hg ( 25 °C)
storage temp. 
25.6 g/100 mL (20°C)
Slightly greenish to blue
3.0-4.0 (25℃, 50mg/mL in H2O)
Water Solubility 
25.6 g/100 mL (20 ºC)
Air Sensitive & Hygroscopic
Stable. Substances to be avoided include strong oxidizing agents. Air and moisture sensitive.
CAS DataBase Reference
7782-63-0(CAS DataBase Reference)
EPA Substance Registry System
Sulfuric acid, iron(2+) salt (1:1), heptahydrate(7782-63-0)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xn,Xi
Risk Statements  22-36/38
Safety Statements  36/37/39-46
WGK Germany  -
RTECS  NO8510000
HS Code  28332950
Toxicity LD50 in mice: 65 mg/kg i.v.; 1.52 g/kg orally (Hoppe)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
Precautionary statements:
P321 Specific treatment (see … on this label).
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P332+P313 IF SKIN irritation occurs: Get medical advice/attention.

Ferrous sulfate heptahydrate price More Price(33)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 1.03965 Iron(II) sulfate heptahydrate 7782-63-0 1EA $51.5 2017-11-08 Buy
Sigma-Aldrich 1.03963 Iron(II) sulfate heptahydrate 7782-63-0 1EA $1150 2017-11-08 Buy
Alfa Aesar 12967 Iron(II) sulfate heptahydrate, Puratronic?, 99.999% (metals basis) 7782-63-0 5g $66.8 2017-11-08 Buy
Alfa Aesar 12967 Iron(II) sulfate heptahydrate, Puratronic?, 99.999% (metals basis) 7782-63-0 25g $251 2017-11-08 Buy
Strem Chemicals 93-2639 Iron(II) sulfate heptahydrate, 99+% (ACS) 7782-63-0 250g $45 2017-11-27 Buy

Ferrous sulfate heptahydrate Chemical Properties,Uses,Production

Solubility in water (g/100mL)

Dissolved grams in 100 mL water at different temperatures (°C):
28.8g/0℃: 40g/10℃;48g/20℃;60g/30℃;73.3g/40℃
101g/60℃: 79.9g/70℃;68.3g/80℃;57.8g/90℃

Chemical properties

Blue-green crystals (monoclinic system) or granules, odorless. Soluble in water, slightly soluble in alcohol, soluble in anhydrous methanol.


As analytical reagent; as raw material for ferrite; raw material to produce magnetic iron oxide, iron(III) oxide and iron blue inorganic pigment, iron catalyst and poly iron sulfate; as chromatographic reagent. In agriculture, it is used as pesticide in agriculture to control wheat smut, scab of apple and bear, fruit tree decay; as fertilizer to remove moss and lichen of food trunk. Medically it is used as local astringent, blood tonic and anti-anemia.  Ferrous sulfate heptahydrate (feed grade) can be used as the iron fortifier for feed additive. Ferrous sulfate heptahydrate (food grade) is used as nutrition supplements, such as iron fortifier, coloring agent for fruit and vegetable. According to Chinese regulation, it can be used in following foods and with allowed amounts:
Sweets with filling and salt: 3000~6000 mg/kg;
Cereals with high iron content and corresponding products (maximum daily consumption 50g): 860~960 mg/kg;
Dairy and infant foods: 300-500 mg/kg;
Cereals and corresponding products: 120~140 mg/kg;
Beverages: 50~100 mg/kg. It is used to produce iron salt, iron oxide pigment, mordant, water purifier, preservatives, disinfectant, etc.


Titanite is decomposed with sulfuric acid to obtain titanium dioxide, ferrous sulfate(II) and ferric sulfate (III). Iron (III) compounds are reduced to obtain iron (II) compounds. The mixture is then cooled and crystallized to form ferrous sulfate.
Scrap iron is dissolved with a mixture of diluted sulfuric acid solution and mother solution. The reaction temperature should be below 80°C, otherwise, it results in the sedimentation of ferrous sulfate monohydrate. Clarification is applied to remove impurities from the slightly acidic ferrous sulfate solution. Cooling and centrifugation are carried out obtain light-green ferrous sulfate.


Toxic substance

Toxicity Grading

Middle toxic

Acute Toxicity

Oral-rat LD50: 1389 mg/kg; oral-mouse LD50: 1520 mg/kg.

Flammability Hazardous Characteristics

Not flammable, change into ferric oxide smoke at high temperature.

Storage and Transport

Stored in well-ventilated area, low temperature and dry.

Extinguishing Agent

Water, carbon dioxide, dry powder, sand.

Chemical Properties

light blue or light blue-green solid


Used in quantitative analysis of nitrates .


ChEBI: A hydrate that is the heptahydrate form of iron(2+) sulfate. It is used as a source of iron in the treatment of iron-deficiency anaemia (generally in liquid-dosage treatments; for solid-dosage treatments, the monohydrate is normally used).


In manufacture of Fe, Fe Compounds, other sulfates; in Fe electroplating baths; in fertilizer; as food and feed supplement; in radiation dosimeters; as reducing agent in chemical processes; as wood preservative; as weed-killer; in prevention of chlorosis in plants; in other pesticides; in writing ink; in process engraving and lithography; as dye for leather; in etching aluminum; in water treatment; in qualitative analysis ("brown ring" test for nitrates); as polymerization catalyst.

General Description

A greenish or yellow-brown crystalline solid. Density 15.0 lb /gal. Melts at 64°C and loses the seven waters of hydration at 90°C. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. Used for water or sewage treatment, as a fertilizer ingredient.

Air & Water Reactions

Water soluble

Reactivity Profile

Ferrous sulfate heptahydrate is a weak reducing agent.

Health Hazard

INGESTION: abdominal pain, retching, diarrhea, dehydration, shock, pallor, cyanosis, rapid or weak pulse, shallow respiration, low blood pressure.

Purification Methods

Crystallise the sulfate from 0.4M H2SO4, or precipitate it from an aqueous solution with EtOH. It is efflorescent in dry air, and is converted to the tetrahydrate at 57o, then to the monohydrate at 65o (or by heating the heptahydrate in a vacuum at 140o). It forms a brown-black complex, FeSO4.NO, with nitric oxide and is used in a qualitative test for nitrates (“brown ring” test).

Ferrous sulfate heptahydrate Preparation Products And Raw materials

Raw materials

Preparation Products

Ferrous sulfate heptahydrate Suppliers

Global( 207)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Jiangsu Kolod Food Ingredients Co.,Ltd.
+86-518-85110578 18805133257
+86-518-85110578 CHINA 90 60
Hangzhou Bayee Chemical Co., Ltd.
0086-571-86990109; 0086-18605816692
0086-571-85775919 China 99 55
Henan DaKen Chemical CO.,LTD.
+86-371-55531817 CHINA 22144 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 20803 55
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32765 55
Shanghai Macklin Biochemical Co.,Ltd. 15221275939
021-51821727 China 13251 55
Shanghai Aladdin Bio-Chem Technology Co.,LTD 021-20337333/400-620-6333
021-50323701 China 25127 65
Jiangsu Kolod Food Ingredients Co.,Ltd. 18861332158
+86-518-85115307 China 74 58
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933; China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) China 40399 62

View Lastest Price from Ferrous sulfate heptahydrate manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2017-08-31 Technical Grade Food Grade Pharmaceutical Grade Reagent Grade Ferrous Sulfate Heptahydrate manufacturer
US $10.00 / KG 25KG 99.5%--104.5% 20 tons Jiangsu Kolod Food Ingredients Co.,Ltd

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