Name | Tin(II) fluoroborate |
Synonyms | TIN II FLUOROBORATE STANNOUS FLUOBORATE Tin ii fluoroborate tin(ii) borofluoride Tin(II) Borofluoride Tin(II) fluoroborate Stannous Fluoroborate STANNOUS FLUOROBORATE Tinfluoroborate in water TIN(II) TETRAFLUOROBORATE Tin(II) tetrafluoroborate STANNOUS TETRAFLUOROBORATE tin(2+) ditetrafluoroborate |
CAS | 13814-97-6 |
EINECS | 237-487-6 |
InChI | InChI=1/2BF4.Sn.4H/c2*2-1(3,4)5;;;;;/q2*-1;+2;;;;/r2BF4.H4Sn/c2*2-1(3,4)5;/h;;1H4/q2*-1;+2 |
Molecular Formula | B2F8Sn |
Molar Mass | 292.32 |
Density | 1.67g/mLat 25°C |
Melting Point | >130°C (dec.) |
Water Solubility | Miscible with water. |
Appearance | Liquid |
Specific Gravity | 1.67 |
Color | Colorless |
Exposure Limit | ACGIH: TWA 2 mg/m3; TWA 2.5 mg/m3NIOSH: IDLH 100 mg/m3; IDLH 250 mg/m3; TWA 2 mg/m3 |
Sensitive | 0: forms stable aqueous solutions |
Physical and Chemical Properties | Character: colorless transparent liquid. The solid was white. The pure product was slightly alkaline. relative density 1.65 |
Use | For high-speed tin plating of copper wire, preparation of tin or tin alloy electroplating solution, etc |
Hazard Symbols | C - Corrosive |
Risk Codes | R31 - Contact with acids liberates toxic gas R34 - Causes burns |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S27 - Take off immediately all contaminated clothing. 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 IDs | UN 3264 8/PG 2 |
WGK Germany | 3 |
TSCA | Yes |
Hazard Class | 8 |
Packing Group | III |
Raw Materials | Tin Fluoroboric acid |
colorless or transparent liquid. Relative density (20 degrees C) 1.65. When the aqueous solution contains a certain free acid, it is acidic, and the pure product is slightly alkaline. Heat or water decomposition or hydrolysis. Long-term exposure to air is susceptible to oxidation.
metal tin fluoroboric acid method: first cut the tin ingot into small pieces, heat it on the electric furnace to melt it, then pour it into cold water to form tin flowers, remove it and pour it into the reactor, then add fluoroboric acid, the compressed air was bubbled to fully react. The reaction solution was filtered to remove impurities, and a stannous fluoroborate product was obtained.
It is used to prevent the attack of organic acids in grain commodities, and can also be used for tin-plated copper wires, electroforming shells for various industrial or domestic appliances, and electroplating baths of tin and tin alloys.
see fluoroboric acid. Packaging with polyethylene barrels or chemical packaging barrels. 25kg or 250kg net weight per barrel. Should be stored in a cool, ventilated warehouse. The package is sealed and stored. Cannot be stored in a hot room or exposed to sunlight.
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Application | used for high-speed tin plating of copper wire, preparation of tin or tin alloy electroplating solution, etc. for electroplating. electroplating industry |
production method | 1. Metal tin fluoroboric acid method first cut the tin ingot into small pieces, heat it on the electric furnace to melt, and then pour it into cold water to form tin flowers, remove it into the reactor, then add fluoroboric acid, the compressed air was bubbled to fully react. The reaction solution was filtered to remove impurities, and a stannous fluoroborate product was obtained. The reaction equation is as follows: 2. The chemical method first places the prepared fluoroboronic acid in a reactor, and then slowly adds stannous oxide under stirring. After the reaction is complete, insoluble impurities are removed by filtration to obtain a finished stannous fluoroboronary product. The reaction formula is as follows: |