POTASSIUM HEXAHYDROXOSTANNATE
Potassium stannate trihydrate
CAS: 12125-03-0
Molecular Formula: K2SnO3·3H2O
POTASSIUM HEXAHYDROXOSTANNATE - Names and Identifiers
POTASSIUM HEXAHYDROXOSTANNATE - Physico-chemical Properties
| Molecular Formula | K2SnO3·3H2O |
| Molar Mass | 298.94 |
| Density | 3.197 g/mL at 25 °C(lit.) |
| Melting Point | 140°C |
| Water Solubility | Soluble in water. |
| Appearance | Morphological Crystalline |
| Storage Condition | Store at RT. |
| MDL | MFCD00150391 |
| Physical and Chemical Properties | EPA Chemical Information Potassium stannate trihydrate (12125-03-0) |
| Use | Uses In alkaline tin plating solution, it can produce higher cathode efficiency and conductivity than other tin salts, improve surface brightness, adhesion and corrosion resistance. For example, it is used for electroplating in automobile manufacturing, electronics industry, canned food boxes, etc. It can also be used for mordant, ceramics, etc. |
POTASSIUM HEXAHYDROXOSTANNATE - Risk and Safety
| Risk Codes | R34 - Causes burns R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 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.) S36 - Wear suitable protective clothing. |
| UN IDs | UN 3260 8/PG 3 |
| WGK Germany | 3 |
| RTECS | TT5850000 |
| TSCA | Yes |
POTASSIUM HEXAHYDROXOSTANNATE - Introduction
Easily soluble in water, insoluble in alcohol and acetone, rarely soluble in potassium hydroxide.
Last Update：2022-10-16 17:30:59
POTASSIUM HEXAHYDROXOSTANNATE - Uses and synthesis methods
application
Potassium stannate has a wide range of uses, and the most important use is for electroplating tin and its alloys. At present, potassium stannate plating solution is still widely used in finishing parts, automotive aluminum alloy pistons and other parts. It belongs to high-quality coating and is non-corrosive to steel. Therefore, there is no special requirement for electroplating bath steel. Due to its excellent uniform plating capacity, potassium stannate plating solution is also especially suitable for electroplating fabricated articles. In addition, potassium stannate is also used to manufacture ceramic capacitor substrates, pigments, catalysts, and the like having a uniform dielectric constant over a considerable temperature range.
Preparation
Because the metal tin is amphoteric, it can not only react with strong acids to form the corresponding tin salt or stannic acid, but also react with strong bases such as sodium hydroxide and potassium hydroxide under certain conditions to form alkali metal stannate:
This process uses this property of tin, uses metal tin and potassium hydroxide to directly react to synthesize potassium stannate solution under oxygen pressure, and then evaporates, concentrates and filters to obtain potassium stannate products. Using metal tin as raw material, it directly reacts with concentrated nitric acid and concentrated hydrochloric acid, and then the clarified liquid after the reaction slowly reacts with concentrated potassium hydroxide to obtain the finished product of potassium stannate.
Last Update：2024-04-10 22:29:15
Supplier List
Spot supply
Product Name: Potassium stannate trihydrate Visit Supplier Webpage Request for quotationCAS: 12125-03-0
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
Spot supply
Product Name: Potassium stannate trihydrate Visit Supplier Webpage Request for quotationCAS: 12125-03-0
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
View History