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Stannate,dipotassium

Potassium stannate

CAS: 12142-33-5

Molecular Formula: K2O3Sn

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Stannate,dipotassium - Names and Identifiers

Name Potassium stannate
Synonyms Potassium stannate
POTASSIUM STANNATE
Stannate,dipotassium
POTASSIUM TIN() OXIDE
Potassium tin(Ⅳ) oxide
POTASSIUM TIN (IV) OXIDE
dipotassium tin trioxide
stannate(sno32-),dipotassium
dipotassium oxostannanediolate
POTASSIUMSTANNATE,TRIHYDRATE,POWDER,PURIFIED
CAS 12142-33-5
EINECS 235-255-9
InChI InChI=1/2K.3H2O.3O.Sn/h;;3*1H2;;;;/q2*+1;;;;;2*-1;/r2K.O3Sn.3H2O/c;;1-4(2)3;;;/h;;;3*1H2/q2*+1;-2;;

Stannate,dipotassium - Physico-chemical Properties

Molecular FormulaK2O3Sn
Molar Mass244.9
Density3,197 g/cm3
Melting Point140°C (dec.)
Water Solubility110.5g/100mL H2O at 15°C; insoluble alcohol [MER06] [KIR83]
Appearancecolorless crystals
Specific Gravity3.197
Storage ConditionRoom Temprature
Sensitive0: forms stable aqueous solutions
Physical and Chemical Properties

.

UseIt is used for potassium Stannate tin plating (especially in electronics, automobile manufacturing, canned food boxes and other aspects of tin plating) and fabric printing and dyeing industry, also used in glass, ceramics and other industries

Stannate,dipotassium - Risk and Safety

Risk CodesR20/21/22 - Harmful by inhalation, in contact with skin and if swallowed.
R34 - Causes burns
Safety DescriptionS22 - Do not breathe dust.
S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection.
S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
UN IDs1759
TSCAYes

Stannate,dipotassium - Nature

Open Data Verified Data

The appearance is white or light brown crystalline powder, which is orthorhombic crystal or rhombohedral crystal. Relative density of 3. 197, soluble in water, alkaline, water solubility of 110. 5g/lOOmL(15 ℃)I insoluble in alcohol and acetone. It is easy to absorb carbon dioxide in the air to decompose and generate potassium carbonate and tin hydroxide. Three crystals of water were lost by heating to 140 °c.

Last Update：2024-01-02 23:10:35

Stannate,dipotassium - Preparation Method

Open Data Verified Data
  1. nitric acid method: After melting the tin block, it is quenched into tin flowers by water, and reacted with concentrated nitric acid in the reactor by fully stirring to obtain metastamic acid; After removing impurities, then it is fused with potassium hydroxide, and the eutectic is dissolved in water, and the partial tin acid and potassium hydroxide are neutralized to form potassium Stannate solution, and the product is prepared by precipitation, evaporation and crystallization.
  2. alkaline hydrolysis: as with the nitric acid method, first made into tin flowers, and then mixed with potassium hydroxide, potassium nitrate reaction, the resulting product after a series of post-treatment, removal of impurities, that is, the product.
Last Update：2022-01-01 11:06:54

Stannate,dipotassium - Use

Open Data Verified Data

potassium stannate is mainly used in the electroplating industry to replace silver with tin and replace nickel with tin-copper alloy coating. It can not only reduce the production cost, but also use potassium salt instead of sodium salt can produce higher cathode efficiency and conductivity, improve the surface brightness, adhesion and corrosion resistance of plated parts, such as used in automobile manufacturing, electronics industry, plating of canned food boxes, RMB, etc. Potassium Stannate can also be used as mordant in printing and dyeing industry, textile industry as weighting agent. In addition, in the glass-ceramic industry, advanced decorative materials are also widely used.

Last Update：2022-01-01 11:06:53

Stannate,dipotassium - Safety

Open Data Verified Data

This product listed production methods, by-products are mainly ammonia, nitric oxide, water and a small amount of impurities. Ammonia and nitric oxide can be absorbed by water to produce ammonia and nitric acid; Industrial wastewater can be comprehensively treated by the Environmental Protection Department. Risk: potassium Stannate dust on human body
Harmful. Long-term inhalation of tin-containing dust, showing symptoms of pneumoconiosis, the maximum allowable concentration in the air of the United States is 2 mg/m3. Production and use of the product of the site personnel, contact dust concentration of 10 ~ l5mg/m3, will suffer from chronic bronchitis, presented with the initial symptoms of emphysema, or moderate ventilator insufficiency. GB 12268-90-62001 UNNo.2814. Packaging and storage: The product is decomposed into other products by reaction with carbon dioxide in the air. Special attention should be paid to packaging and sealing. Polyethylene plastic bags should be used as the inner packaging bag, each net weight: 18kg, 20kg, 30kg, 40kg, etc.; The mouth of the bag is sealed with a machine; The outer package can be filled with fiberboard drum or black iron drum or polypropylene woven bag. Packaging at any time with a machine to seal the mouth of the bag, the lid should be lined and fastened. Outside the package to have a clear mark "moisture-proof" fire "of the text and icons, as well as the provisions of the text description of the goods. Store in ventilated, dry, waterproof, fire-proof, moisture-proof chemical warehouse. Do not transport with flammable and easily corrosive and acid items. Care should be taken when handling to avoid damage to the package. If there is damage, replace the new package immediately, and cover the cloth to prevent the sun and rain when transporting. Hazards and protection: the working environment should be ventilated and clean to prevent dust accumulation and retention in the air. Operators should have labor protection, with emphasis on the protection of the respiratory system. Production and use of a large number of potassium Stannate, to wash and change clothes, protective equipment should be stored separately, often change. Staff should regularly check the respiratory system, do early detection, early treatment. Fire can be used in dry sand, dry powder, asbestos cloth.

Last Update：2022-01-01 11:06:55

Stannate,dipotassium - Reference Information

EPA chemical information Information provided by: ofmpub.epa.gov (external link)
use potassium stannate is a replacement fine chemical product in the electroplating industry, mainly used to replace silver with tin and nickel with tin-copper alloy coating. It can not only reduce production costs, but also use potassium salt instead of sodium salt to produce higher cathode efficiency and conductivity, and improve the surface brightness, adhesion and corrosion resistance of the plated parts, such as electroplating in automobile manufacturing, electronics industry, canned food boxes, RMB, etc. Potassium stannate can also be used as a mordant in the printing and dyeing industry, as a weight enhancer in the textile industry, etc. In addition, it is also widely used in glass ceramic industry and advanced decorative materials.
It is used for tin plating with potassium stannate (especially in electronics, automobile manufacturing, canned food boxes, etc.) and fabric printing and dyeing industry, and also used in glass, ceramics and other industries
Used for tin plating and fabric printing and dyeing
Used for tin plating with potassium stannate, and also used in glass, ceramics, printing and dyeing industries
production method neutralization of stannic acid and potassium hydroxide to generate potassium stannate solution, which is precipitated, evaporated and crystallized to obtain the product.
Last Update：2024-04-10 22:29:15
Stannate,dipotassium
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CAS: 12142-33-5
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Product Name: Potassium stannate Visit Supplier Webpage Request for quotation
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Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409 Click to send a QQ message
Wechat: 18301782025
Hefei TNJ Chemical Industry Co.,Ltd.
Product Name: Potassium stannate Request for quotation
CAS: 12142-33-5
Tel: 0086-551-65418684
Email: sales@tnjchem.com
　　　　 info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840 Click to send a QQ message
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Wuhan Xingzhongcheng Chemical limited company
Spot supply
Product Name: Potassium stannate Request for quotation
CAS: 12142-33-5
Tel: 86+027-83389957
Email: 1024042217@qq.com
Mobile: 86+18627766980
QQ: 1024042217 Click to send a QQ message
Wechat: 18627766980
Shanghai Yuanye Bio-Technology Co., Ltd.
Product Name: Potassium stannate Visit Supplier Webpage Request for quotation
CAS: 12142-33-5
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409 Click to send a QQ message
Wechat: 18301782025
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Stannate,dipotassium
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