Stannic acid sodium salt
Sodium stannate
CAS: 12058-66-1
Molecular Formula: Na2O3Sn
Stannic acid sodium salt - Names and Identifiers
| Name | Sodium stannate |
| Synonyms | Sodium stannate SODIUM STANNATE disodiumstannate SODIUM M-STANNATE Stannate, disodium SODIUM TIN(IV) OXIDE DI-SODIUM TIN TRIOXIDE Stannic acid sodium salt Stannate (SnO32-),sodium disodium oxostannanediolate |
| CAS | 12058-66-1 |
| EINECS | 235-030-5 |
| InChI | InChI=1/2Na.3O.Sn/q2*+1;;2*-1;/r2Na.O3Sn/c;;1-4(2)3/q2*+1;-2 |
Stannic acid sodium salt - Physico-chemical Properties
| Molecular Formula | Na2O3Sn |
| Molar Mass | 212.69 |
| Density | 4.68 g/cm3(Temp: 25 °C) |
| Melting Point | 140°C |
| Water Solubility | Slightly soluble in water. |
| Solubility | Soluble in water, insoluble in alcohol, |
| Appearance | Crystalline powder |
| Exposure Limit | ACGIH: TWA 2 mg/m3NIOSH: IDLH 100 mg/m3; TWA 2 mg/m3 |
| Merck | 14,8677 |
| Storage Condition | Room Temprature |
| Stability | Stable, but may be air sensitive. |
| Sensitive | Air Sensitive |
| MDL | MFCD00014241 |
| Physical and Chemical Properties | Colorless hexagonal plate-like crystal or white powder. |
| Use | Used as mordant, textile fire retardant, weighting agent, and the manufacture of ceramics, glass and used for tin plating |
Stannic acid sodium salt - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R36 - Irritating to the eyes R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| WGK Germany | 3 |
| RTECS | JN6345000 |
| TSCA | Yes |
Stannic acid sodium salt - Upstream Downstream Industry
| Raw Materials | Sodium hydroxide Sodium nitrate |
Stannic acid sodium salt - Nature
Open Data Verified Data
colorless hexagonal plate-like crystal or white powder. Soluble in water, the aqueous solution is alkaline, and the relative density of the aqueous solution is 1. 438. Insoluble in alcohol and acetone. The water of crystallization was lost when heated to 140 °c to an anhydrate. In case of acid, it is decomposed into sodium salt and tin dioxide. The absorption of carbon dioxide in the air of sodium carbonate and tin hydroxide.
Last Update：2024-01-02 23:10:35
Stannic acid sodium salt - Preparation Method
Open Data Verified Data
- alkali hydrolysis method: The Tin block is melted and quenched into tin flower by water, and then it is mixed with caustic soda and sodium nitrate, and the reaction temperature is increased from 300 ℃ to 800 ℃ to form Sodium Stannate, after cooling, water is added to dissolve, sodium sulfide and hydrogen peroxide are added to purify and remove impurities. After precipitation, Sodium Stannate is obtained by Suction filtration, evaporation and concentration, centrifugal separation, drying and pulverization.
- melting method: the calcined powder of cassiterite was co-melted with sodium hydroxide for 15min in an electric furnace, and the resultant was dissolved in water, followed by refining such as boiling, crystallization and recrystallization to obtain Sodium Stannate.
Last Update：2022-01-01 11:06:56
Stannic acid sodium salt - Introduction
The aqueous solution is alkaline. Gradually decomposed in the air, it can also be decomposed by weak acids.
Last Update：2022-10-16 17:12:40
Stannic acid sodium salt - Use
Open Data Verified Data
It is mainly used for alkaline tin plating and copper plating in electroplating industry, as well as electroplating and electroless plating of tin alloy, zinc tin alloy, aluminum alloy and other alloys. In the textile industry as a fire retardant, weighting agent. Printing and dyeing industry as a mordant. Also used in glass, ceramic and other industries.
Last Update：2022-01-01 11:06:56
Stannic acid sodium salt - Safety
Open Data Verified Data
This product listed production methods, by-products are mainly ammonia, water and a small amount of impurities. Ammonia gas can be absorbed by water to produce ammonia; Industrial wastewater can be comprehensively treated by the Environmental Protection Department. Sodium Stannate dust is harmful to human body. 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 products of the site personnel, contact dust concentration of 10~15 mg/m3, will suffer from chronic bronchitis, showing the initial symptoms of emphysema, or moderate ventilatory insufficiency. No. GB 12268-90-62001 UN No.2814. The product is decomposed into other products by reaction with carbon dioxide in the air, and special attention should be paid to the sealing of the package. Polyethylene plastic bags should be used as the inner packaging bag, each pack of net weight: 18kg, 20kg, 30kg, 40kg, etc.; Outer packaging can be used fiber board 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, there should be text and icons marked with "moisture-proof" and "fire prevention", as well as the text description of the commodity regulations. 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, clean and wet, to prevent dust accumulation and retention in the air. Operators should have labor protection, with emphasis on the protection of the respiratory system. After the production and use of a large number of Sodium 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 11:06:57
Stannic acid sodium salt - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| application | mainly used for alkaline tin plating, copper plating and tin aluminum alloy plating in electroplating industry. The textile industry is used as a fire retardant and a weight enhancer. The dye industry is used as a mordant. It is also used in glass, ceramics and other industries. Used as mordant, fire retardant for textiles, weight enhancer, and manufacturing ceramics, glass and tin plating, etc. mordant, fabric fire retardant, tin plating. It is mainly used for alkaline tin plating and copper-tin alloy plating in electroplating industry. Used in the textile industry as a fire retardant, weight enhancer. The dye industry is used as a mordant. It is also used for glass. Ceramics and other industries. |
| production method | alkaline solution method melts the tin block and is quenched into tin flower by water, and then miscible reaction with caustic soda and sodium nitrate. the reaction temperature is raised from 300 ℃ to 800 ℃ to generate sodium stannate, which is cooled and dissolved in water, and then purified by sodium sulfide and hydrogen peroxide to remove impurities. after precipitation, it is filtered, evaporated and concentrated, centrifuged, dried and crushed, preparation of sodium stannate products. Its 2Sn 3NaOH NaNO3 6H2O → 2 Na2SnO3?3H2O NH3 ↑ |
Last Update：2024-04-09 02:00:06
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Product Name: Sodium stannate Request for quotation
CAS: 12058-66-1
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CAS: 12058-66-1
Tel: 0086-551-65418684
Email: sales@tnjchem.com
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Raw Materials for Stannic acid sodium salt