Chemical formula: SnCl2.2H2O
Synonyms: tin chloride dihydrate, tin dichloride, stannous chloride, chloride of tin.
Amount: 50 g
Appearance and odour: white crystals, without appreciable odour.
Grade: Reagent grade.
Packaging: professional wide necked, white HDPE bottle with blue conical seal cap and tamper ring. Labelled. Bottle and cap are UN approved and reusable.
Description and uses: the primary and highly soluble water soluble tin (II) salt.
Ammonia solution added to a tin (II) chloride solution causes tin (II) hydroxide to precipitate. Adding strong alkali (NaOH or KOH) to the precipitate causes it to dissolve to stannite solution. Dissolving thin (II) hydroxide in acids causes the respective tin salts to be formed.
It’s a mild reducing agent that is easily oxidised to tin (IV) (stannic compounds) by oxygen, nitric acid and many other oxidising agents. It reduces copper (II) compounds to copper (I). By reduction of silver (I) solutions with SnCl2, silver mirrors can be created.
Electrolysis of aqueous stannous chloride solutions causes metallic tin to form at the cathode, often in the form of a so-called ‘tin-tree’.
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