Ferroinsolution , (1,10-phenanthrolineiron(II)sulfate)1/40mol/lredoxindicator

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

CAS NO.：

Empirical Formula: FeO4S

Molecular Weight: 151.91

MDL number: MFCD00011014

EINECS: 231-753-5

PRODUCT Properties

• Melting point: decomposes at 671℃ [JAN85]
• Density: 3.650
• vapor pressure: 0Pa at 20℃
• storage temp.: Store at +15°C to +25°C.
• solubility: Water (Slightly)
• form: white orthorhombic crystals
• color: white orthorhombic crystals, crystalline; hygroscopic
• Odor: at 100.00?%. odorless
• 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]
• Dielectric constant: 14.2（14℃）
• InChI: InChI=1S/Fe.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
• InChIKey: BAUYGSIQEAFULO-UHFFFAOYSA-L
• SMILES: [Fe+2].S([O-])([O-])(=O)=O
• CAS DataBase Reference: 7720-78-7(CAS DataBase Reference)
• NIST Chemistry Reference: Ferrous sulfate(7720-78-7)
• EPA Substance Registry System: Ferrous sulfate (7720-78-7)

Description and Uses

Green vitriol, FeSO4.7H20, has been known since the thirteenth century ; it crystallizes from solutions of iron or iron bases in dilute sulphuric acid. The heptahydrate forms green monoclinic crystals of density 1·88, very soluble in water (296 g litre^-1 FeS04 at 25°C). By precipitating the aqueous solution with ethanol, heating the heptahydrate to 140° in vacuo or by crystallizing it from 50 % sulphuric acid, the white monohydrate is obtained. This can be further dehydrated to the white, amorphous FeSO4 by heating to 300° in a current of hydrogen. At red heat the sulphate decomposes : 2FeS04 -> Fe203+S02+S03 A tetrahydrate, FeS04.4H20, crystallizes from aqueous solutions above 56°.

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.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H302-H315-H319
• Precautionary statements: P264-P270-P301+P312-P330-P501-P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P
• Risk Statements: 25
• Safety Statements: 45
• HS Code: 28332910
• Hazardous Substances Data: 7720-78-7(Hazardous Substances Data)
• Toxicity: LD50 oral in rat: 319mg/kg