Sunday 25 March 2012

Specifications of Stannous chloride dihydrate

 
Stannous chloride dihydrate
Synonyms Tin (II) chloride dihydrate
Molecular Formula SnCl2.2(H2O)
Molecular Weight 225.63
CAS Registry Number 10025-69-1
Density 2.71
Melting point 37-38 ºC
Boiling point 652 ºC
Water solubility 1187 g/L (20 ºC)
Stannous chloride dihydrate may be substituted effectively in numerous applications for Stannous Chloride Anhydrous. Product selection is contingent upon availability, price, and the purity of material. Nevertheless, the dihydrate generally is acknowledged to be more difficult to handle because of its low melting point. Although manufacturing techniques are critical to product quality, the dihydrate normally is purer with a higher stannous/stannic ratio. Reagent grade dihydrate was the only type approved in the Federal Registry for food applications. Its value as an antioxidant and as a corrosion inhibitor contributed to the premium price, which it commands.
Stannous Chloride Dihydrate is widely used in applications that require GMPs to be followed such as Oral Health Care and Pharmaceuticals
Stannous Chloride Dihydrate is not as commercially available as the Anhydrous, but it is preferred in many applications due to its higher purity.
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