Stannous sulfate

Stannous sulfate Basic information
Uses Description References
Product Name:Stannous sulfate
Synonyms:STANNOUS SULFATE;STANNOUS SULPHATE;Tin Sulfate;STANNAIC SULPHATE;TIN(II) SULFATE;TIN(II) SULPHATE;Tin sulphate;TIN(+2)SULFATE
CAS:7488-55-3
MF:O4SSn
MW:214.77
EINECS:231-302-2
Product Categories:Inorganics;metal sulfate
Mol File:7488-55-3.mol
Stannous sulfate Structure
Stannous sulfate Chemical Properties
Melting point 360 °C
density 4,15 g/cm3
vapor pressure 0Pa at 20℃
storage temp. no restrictions.
form Solid
color White to off-white
Specific Gravity1.35
PH1.6 (50g/l, H2O, 20℃)
Water Solubility 330 g/L (20 ºC)
Merck 14,8790
Exposure limitsACGIH: TWA 2 mg/m3
NIOSH: IDLH 100 mg/m3; TWA 2 mg/m3
Stability:Stable, but moisture sensitive. Incompatible with strong oxidizing agents.
CAS DataBase Reference7488-55-3(CAS DataBase Reference)
EPA Substance Registry SystemSulfuric acid, tin(2+) salt (1:1) (7488-55-3)
Safety Information
Hazard Codes Xi,N,Xn
Risk Statements 36/37/38-36/37-68-50/53-48/22-43-20
Safety Statements 26-36-39-61-60-45-37-53
RIDADR UN 3260 8/PG 3
WGK Germany -
RTECS WT1255000
TSCA Yes
HS Code 28332990
ToxicityLD50 orally in Rabbit: 2207 mg/kg
MSDS Information
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Stannous sulfate Usage And Synthesis
Uses

Stannous sulfate is the sulfate salt of stannous. Study has shown that it can be mixed with gypsum to make a retarder in grinding portal cement and blended hydraulic cement, which can improve the quality of the cement, mortar and concrete. It can also be used as the reducing agent during the determination of mercury, cobalt and nickel through atomic absorption spectrophotometry. It can also be used as an electrolyte additive to be supplemented to the battery. This could have a positive effect on restraining larger particles of irreversible sulfation in charge-discharge cycles of battery testing.

Description

Stannous Sulfate is a white to slightly yellow, heavy crystalline powder. When dissolved in a 5% Sulfuric Acid Solution, a clear solution is obtained. Gradual hydrolysis occurs over a period of time with the formation of insoluble tin compounds.
Stannous Sulfate is commonly used in acid tin plating baths, liquor finishing and drawing of steel wire. It delivers a high current efficiency and smooth, fine grained deposits. A bright finish can be obtained by flow melting of through the use of certain additives.

ReferencesYue, Sing Tsze. "Stannous sulfate and gypsum mixture as a retarder in grinding portland cement and blended hydraulic cement for improving the quality of the cement, mortar and concrete." U.S. Patent No. 4,011,092. 8 Mar. 1977. Hatch, W. Ronald, and Welland L. Ott. "Determination of submicrogram quantities of mercury by atomic absorption spectrophotometry." Analytical Chemistry 40.14 (1968): 2085-2087. Wang, Qin, et al. "Stannous sulfate as an electrolyte additive for lead acid battery made from a novel ultrafine leady oxide." Journal of Power Sources 285(2015): 485-492.
Chemical Propertiesoff-white solid
UsesIn tin plating; preparation of stannous salts.
UsesIt is used in tin plating baths and it is a precursor for tin metal.
HazardToxic material.
Flammability and ExplosibilityNonflammable
Stannous sulfate Preparation Products And Raw materials
Raw materialsEthanol-->Sodium hydroxide-->Sulfuric acid-->Stannous chloride dihydrate-->Tin-->STANNOUS CHLORIDE
Ferrous sulfate heptahydrate Neomycin sulfate Zinc sulphate Ferric sulfate SODIUM SULFATE Potassium persulfate Stannous sulfate FERROUS SULFATE Copper(II) sulfate Sodium thiosulfate pentahydrate Ferrous sulfate monohydrate Atropine sulfate Aluminum sulfate Magnesium sulfate Ammonium sulfate Magnesium sulfate heptahydrate Barium sulfate Potassium sulfate

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