| Identification | More | [Name]
Potassium stannate | [CAS]
12142-33-5 | [Synonyms]
POTASSIUM STANNATE
POTASSIUM TIN (IV) OXIDE
stannate(sno32-),dipotassium
Stannate,dipotassium
dipotassium tin trioxide
Potassium tin(Ⅳ) oxide
POTASSIUMSTANNATE,TRIHYDRATE,POWDER,PURIFIED
POTASSIUM TIN() OXIDE | [EINECS(EC#)]
235-255-9 | [Molecular Formula]
K2O3Sn | [MDL Number]
MFCD00049664 | [Molecular Weight]
244.9 | [MOL File]
12142-33-5.mol |
| Chemical Properties | Back Directory | [Melting point ]
140°C (dec.) | [density ]
3,197 g/cm3 | [solubility ]
very soluble in H2O; insoluble in ethanol | [form ]
colorless crystals | [color ]
colorless crystals, crystalline | [Specific Gravity]
3.197 | [Odor]
Odorless | [Water Solubility ]
110.5g/100mL H2O at 15°C; insoluble alcohol [MER06] [KIR83] | [Hydrolytic Sensitivity]
0: forms stable aqueous solutions | [InChI]
InChI=1S/2K.3O.Sn/q2*+1;;2*-1; | [InChIKey]
IOUCSUBTZWXKTA-UHFFFAOYSA-N | [SMILES]
[K+].[K+].[Sn]([O-])([O-])=O | [CAS DataBase Reference]
12142-33-5(CAS DataBase Reference) | [EPA Substance Registry System]
12142-33-5(EPA Substance) |
| Hazard Information | Back Directory | [Chemical Properties]
white to light tan crystal(s); used to dye and print textiles, in alkaline tin plating baths; anhydrous available as -100mesh with 99.9% purity [HAW93] [CER91] | [Uses]
Potassium stannate is mainly used in potassium stannate tin plating (especially in electronics, automobile manufacturing, and canned food containers) and the textile printing and dyeing industry, as well as in the glass and ceramics industries. In the electroplating industry, potassium stannate serves as a next-generation fine chemical product, primarily used to replace silver with tin and nickel with tin-copper alloy plating. This not only reduces production costs but also, by replacing sodium salts with potassium salts, produces higher cathode efficiency and conductivity, improving the surface brightness, adhesion, and corrosion resistance of the plated parts. Examples include its use in automobile manufacturing, the electronics industry, canned food containers, and the plating of banknotes and other items. In the printing and dyeing industry, it can also be used as a mordant; in the textile industry, as a weighting agent; and it has wide applications in the glass and ceramics industries and high-grade decorative materials. |
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