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Ferrous sulfate heptahydrate CAS37782-63-0

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Chemical Name：Ferrous sulfate heptahydrate

CAS No.37782-63-0

Molecular Formula：FeH14O11S

Molecular weight:278.01

Sample: Available

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Product Details

Products Description of Ferrous sulfate heptahydrate CAS37782-63-0

The chemical formula of ferrous sulfate is FeSO4. The most common one is ferrous sulfate FeSO4·7H2O containing seven crystal waters, commonly known as green vitriol. Light blue-green monoclinic crystal, density 1.898g/cm3, melts in crystal water at 64℃. Soluble in water, the aqueous solution is acidic. Gradually weathered in the air, and oxidized to yellow-brown basic iron salt. All crystal water is lost at 300℃, and the anhydrous substance is white powder.

Ferrous sulfate is easily oxidized to yellow or rust color in humid air. Soluble in water, the general concentration of ferrous sulfate solution is about 10%. As a coagulant, the coagulant particles are large, the water-repellent is good, the sedimentation is fast, the decolorization effect is very good, the cost of ferrous sulfate treatment agent is low, and it is suitable for wastewater treatment with a pH value above 8.5.

Ferrous sulfate heptahydrate Chemical Properties

Melting point	64 °C
density	1.898 g/mL at 25 °C (lit.)
vapor pressure	14.6 mm Hg ( 25 °C)
storage temp.	Store at +15°C to +25°C.
solubility	25.6 g/100 mL (20°C)
form	Solution
color	Slightly greenish to blue
Specific Gravity	1.898
PH	3.0-4.0 (25℃, 50mg/mL in H2O)
Odor	pale bluish-grn. cryst. or gran., odorless
Water Solubility	25.6 g/100 mL (20 ºC)
Sensitive	Air Sensitive & Hygroscopic
Merck	14,4057
Exposure limits	ACGIH: TWA 1 mg/m3 NIOSH: TWA 1 mg/m3
Stability:	Stable. Substances to be avoided include strong oxidizing agents. Air and moisture sensitive.
InChIKey	SURQXAFEQWPFPV-UHFFFAOYSA-L
LogP	-1.031 (est)
CAS DataBase Reference	7782-63-0(CAS DataBase Reference)
EPA Substance Registry System	Ferrous sulfate heptahydrate (7782-63-0)

Safety Information

Hazard Codes	Xn
Risk Statements	22-36/38
Safety Statements	36/37/39-46
WGK Germany	1
RTECS	NO8510000
F	10-23
TSCA	Yes
HS Code	28332950
Toxicity	LD50 in mice: 65 mg/kg i.v.; 1.52 g/kg orally (Hoppe)

Product Application of Ferrous sulfate heptahydrate CAS37782-63-0

Ferrous sulfate: Alias: ferrous, ferrous sulfate heptahydrate, green vitriol, drying type ferrous sulfate, can be used as a reducing agent in electroplating plants, as a flocculant in industrial wastewater, as a precipitant in printing and dyeing plants, as a raw material for iron red plants, as a raw material for pesticide plants, as a raw material for fertilizer plants, ferrous sulfate fertilization in flowers, etc. It is widely used in printing and dyeing, papermaking, domestic sewage, flocculation clarification and decolorization of industrial wastewater. Ferrous sulfate can also be used to treat chromium-containing wastewater and cadmium-containing wastewater. Treatment of high alkalinity and high chroma wastewater can reduce the large amount of input of neutralization acid.

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