Stannous chloride dihydrate, CAS No. 10025-69-1

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10025-69-1

Catalog No. EBD2138458

CAS 10025-69-1

Name Stannous chloride dihydrate

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Basic Information

Synonyms: Stannouschloridedihydrate Stannouschloride,dihydrate Tinchloridedihydrate Tin(II)chloridehydrated dichloro-lambda~2~-stannane dichloro-lambda~2~-stannanedihydrate stannicchloridedihydrate

Molecular Formula: 2H2O*Cl2Sn

Molecular Weight: 227.65

MDL Number: MFCD00149863

Categories: Synthetic Chemistry > Basic Synthetic Reagents > Reducing Agents Materials Chemistry > Surface Modification and Functional Coatings > Metal Surface Passivation Precursors

Product Description:

Tin(II) chloride dihydrate (SnCl₂·2H₂O) is a white crystalline solid that is highly soluble in water and ethanol. It is a common and versatile inorganic compound, primarily known for its strong reducing properties. The anhydrous form is also commercially available, but the dihydrate is more frequently handled due to its stability. Its primary application is as a powerful reducing agent in organic synthesis, particularly for the reduction of nitro compounds to amines, the reduction of quinones to hydroquinones, and in various other reductive transformations. It is also a key reagent in the Stephen reduction for converting nitriles to aldehydes. Beyond synthesis, it serves as a mordant in dyeing processes and as an electrolyte additive in tin-plating baths for the electroplating of metals, functioning as a surface treatment and passivation precursor. The compound must be handled with care as it is corrosive and can cause skin and eye irritation. It is typically stored under an inert atmosphere to prevent oxidation to tin(IV) species.

Physical Properties

Melting Point: 37-38 °C (dec.)(lit.)

Boiling Point: 652 °C(lit.)

Density: 2.71

Solubility: 1187 g/L (20 ºC)

Storage: Store at RT.

Safety Information

Packing Level: III

Hazard Category: 8

Transport Codes: 3260

Analytical Data

Appearance: Colorless to white, odorless solid