7720-78-7

Product Name: Ferrous sulfate

Formula: FeO4S

Synonyms: 1,10-Phenanthroline iron(II) salt solution;Ferrous sulfate heptahydrate;Iron(II) sulfate heptahydrate

Inquiry

CHEMICAL AND PHYSICAL PROPERTIES COMPUTED DESCRIPTORS PRODUCT INTRODUCTION RELATED SUPPLIERS

CHEMICAL AND PHYSICAL PROPERTIES

Physical 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.
Color/Form	White orthorhombic crystals, hygroscopic
Boiling Point	> 300 °C
Melting Point	64
Solubility	25.6 g/100 mL
Density	1.9 at 59 °F (USCG, 1999) - Denser than water; will sink
LogP	-0.84
Stability/Shelf Life	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.
Autoignition Temperature	Not flammable (USCG, 1999)
Decomposition	When heated to decomposition it emit toxic fumes of /sulfur oxide/.
Refractive Index	INDEX OF REFRACTION: 1.471, 1.478, 1.486; MP 64 °C LOSING 6H2O; BP 300 °C LOSING 7H2O. /FERROUS SULFATE HEPTAHYDRATE/
Dissociation Constants	-3
Other Experimental Properties	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)
Chemical Classes	Metals -> Metals, Inorganic Compounds

COMPUTED DESCRIPTORS

Molecular Weight	151.91 g/mol
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	0
Exact Mass	151.886665 g/mol
Monoisotopic Mass	151.886665 g/mol
Topological Polar Surface Area	88.6 Å²
Heavy Atom Count	6
Formal Charge	0
Complexity	62.2
Isotope Atom Count	0
Defined Atom Stereocenter Count	0
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
Covalently-Bonded Unit Count	2
Compound Is Canonicalized	Yes

PRODUCT INTRODUCTION

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.