1. Materials information
English name dioxotin, sodium, trihydrate
Chinese alias: Sodium stannate trihydrate | Sodium stannate trihydrate
CAS number 12209-98-2
Melting point 140 ° C (dec.)
Molecular formula H6Na2O6Sn
Molecular weight 266.72500
Appearance: Colorless hexagonal plate-like crystals or white powder.
Solubility: soluble in water, insoluble in ethanol and acetone.
purpose
Used as a mordant, fire retardant and weight enhancer for textiles, as well as in the manufacturing of ceramics, glass, and tin plating
This product is the main salt for alkaline tin plating. It forms a complex salt with sodium hydroxide and dissolves in the tin plating solution. When the solution is energized, tin is contained in the anionic complex ions, which are directly reduced to the alkaline tin plating solution on the anode. The general dosage is 75-90kg/L, and it can also be used as an auxiliary main salt for cyanide plating of copper tin alloys and pyrophosphate, stannate, and copper tin alloys. This product is used as a mordant in the printing and dyeing industry to precipitate pigments, ceramics, glass, and fire-resistant fabrics.
Used as a fabric fireproof agent and a mordant in the ceramic industry
Production methods
Add 446kg of tin (99.5%), 320kg of caustic soda (90%), and 105 kg of sodium nitrate (95%) to the reaction pot in sequence, heat to 300 ℃, and stop heating when the temperature rises to 800 ℃. Continue stirring until the material ignites. After 0.5 hours of ignition, cool it down and remove from the pot. Dissolve the crude product in water, remove lead with sodium sulfide, and remove iron with hydrogen peroxide. Usually, vacuum filtration, concentration, centrifugal dehydration, drying, and crushing are carried out to obtain finished products.
2. Packaging of materials
For powders: normal is 25kgs/Drum or bag, or larger/smaller package as request.
For liquids: normal 25kgs/drum, 180-300kgs/bucket, or IBC, determined by the nature of the product.
Or smaller package 1kg/bottle, 10kgs/bottle as request.
3. Shipping & Delivery
Provide door to door service
Suitable for goods under 50kg
Delivery: 3-7 days
Cost: low cost
Provide airport to airport service
Suitable for goods over 50kg
Delivery: 3-14 days
Cost: high cost
Provide seaport to seaport service
Suitable for goods over 100kg
Delivery: 2-45 days
Cost: low cost
4. Contact information
For more details, pls contact us freely.
Email address: elin@fdachem.com
Mob: 86 13613820652
WhatsApp/Skype/Wechat/LINE: 86 13613820652
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