Ferrous sulfate, >98%

Catalog Number

ACM7720787

Product Name

Ferrous sulfate, >98%

Structure

CAS

7720-78-7

Category

Other Glass and Ceramic Materials

Description

Ferrous sulfate appears as 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.;DryPowder; DryPowder, PelletsLargeCrystals; Liquid; OtherSolid; PelletsLargeCrystals

IUPAC Name

iron(2+);sulfate

Molecular Weight

151.91g/mol

Molecular Formula

FeO4S;FeO4S

Canonical SMILES

[O-]S(=O)(=O)[O-].[Fe+2]

InChI

InChI=1S/Fe.H₂O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2

InChI Key

BAUYGSIQEAFULO-UHFFFAOYSA-L

Boiling Point

> 300 °C

Density

1.9 at 59 °F (USCG, 1999);3.56 g/cu cm

Solubility

Soluble in water.

Color/Form

White orthorhombic crystals, hygroscopic

Complexity

62.2

Covalently-Bonded Unit Count

2

EC Number

231-753-5;240-616-9

Exact Mass

151.886665g/mol

Formal Charge

0

Heavy Atom Count

6

MeSH Entry Terms

Aktiferrin;Apo-Ferrous Sulfate;biofer;Ceferro;Conferon;Eisendragees-ratiopharm;Eisensulfat Stada;Feospan;Fer-Gen-Sol;Fer-in-Sol;Feratab;Fero-Gradumet;Ferodan;Ferogradumet;Ferro-Gradumet;Ferrogamma;Ferrograd;FERROinfant;ferrous sulfate;ferrous sulfate, heptahydrate;ferrous sulphate;H?matopan;Haemoprotect;Hemobion;Hemofer;iron(II) sulfate heptahydrate;Kendural;Mol-Iron;Plastufer;Slow-Fe;Vitaferro Kapseln

Monoisotopic Mass

151.886665g/mol

Other Experimental

Standard molar enthalpy (heat) of formation at 298.15 deg K is -928.4 kJ/mol (crystal); Standard molar Gibbs energy of formation at 298.15 deg K is -820.8 kJ/mol (crystal); Standard molar entropy at 298.15 deg K is 107.5 J/mol K (crystal); Molar heat capacity at constant pressure at 298.15 deg K is 100.6 J/mol K (crystal);White to yellow crystalline powder. Sol in water. Loses water @ about 300 °C; decomp @ higher temp. /Ferrous sulfate monohydrate/;Pale, bluish-green monoclinic odorless crystals or granules. Efflorescent in dry air; forms tetrahydrate @ 56.6 °C and monohydrate @ 65 °C; density 1.897. Sol in water; practically insol in alc. /Ferrous sulfate heptahydrate/;INDEX OF REFRACTION: 1.471, 1.478, 1.486; MP 64 °C LOSING 6H₂O; BP 300 °C LOSING 7H₂O. /FERROUS SULFATE HEPTAHYDRATE/;Odorless; has saline, astringent taste. /Ferrous sulfate heptahydrate/;Density 2.970 at 25 °C; off-white, monoclinic crystals. /Ferrous sulfate monohydrate/;White, triclinic crystals; index of refraction 1.526, 1.536, 1.542; density 2.2; MP 300 °C losing 5H₂O; sol in cold & hot water, insol in alc. /Ferrous sulfate pentahydrate/;Green monoclinic prisms; index of refraction 1.533, 1.535; density 2.23-2.29. /Ferrous sulfate tetrahydrate/;pH 3.7 (10%) solution; hygroscopic /Ferrous sulfate heptahydrate/;Each part of ferrous sulfate heptahydrate requires 0.03 parts of oxygen or 0.126 parts of chlorine for oxidation to the ferric state. /Ferrous sulfate heptahydrate/;In moist air, oxidizes to yellow-brown basic iron(III) sulfate. Aqueous solutions tend to oxidize with the rate increasing with increasing pH, temperature, and light /Ferrous sulfate heptahydrate/;Sugar, glycerin, & many organic hydroxy acids hinder precipitation. In neutral solution, soluble carbonates, phosphates, & oxalates produce precipitation. /Ferrous salts/

Rotatable Bond Count

0

Stability

In moist air, ferrous sulfate rapidly oxidizes and becomes coated with brownish-yellow ferric sulfate... . The rate of oxidation is increased by the addition of alkali or by exposure to light.

UNII

2IDP3X9OUD

UN Number

3077

MSDS

COA

Spec Sheet