2966-50-9
Trifluoroacetic acid, silver salt
CAS: 2966-50-9
Molecular Formula: C2AgF3O2
2966-50-9 - Names and Identifiers
| Name | Trifluoroacetic acid, silver salt |
| Synonyms | SILVER TRIFLUOROACETATE SILVER(I) TRIFLUOROACETATE silver(1+) trifluoroacetate TRIFLUOROACETIC ACID SILVER SALT Trifluoroacetic acid, silver salt trifluoro-aceticacisilver(1++)salt Trifluoroacetic acid silver(I) salt Acetic acid, trifluoro-, silver(1+) salt |
| CAS | 2966-50-9 |
| EINECS | 221-004-0 |
| InChI | InChI=1/C2HF3O2.Ag/c3-2(4,5)1(6)7;/h(H,6,7);/q;+1/p-1 |
2966-50-9 - Physico-chemical Properties
| Molecular Formula | C2AgF3O2 |
| Molar Mass | 220.88 |
| Melting Point | 257-260 °C (dec.) (lit.) |
| Boling Point | 72.2°C at 760 mmHg |
| Water Solubility | SOLUBLE |
| Vapor Presure | 96.2mmHg at 25°C |
| Appearance | Pale beige to gray crystalline powder |
| Color | Light beige to gray |
| BRN | 3634022 |
| Storage Condition | Store below +30°C. |
| Sensitive | Hygroscopic |
| MDL | MFCD00013199 |
| Use | It is used as a catalyst for hydrazone oxide in organic synthesis and combined with iodide as a catalyst for aromatic cycloiodination and regioselective alkylation. |
2966-50-9 - Risk and Safety
| Risk Codes | R36/38 - Irritating to eyes and skin. R50 - Very Toxic to aquatic organisms 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. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S36/39 - |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 3-8 |
| TSCA | T |
| HS Code | 28432900 |
| Hazard Note | Toxic/Hygroscopic |
| Hazard Class | 9 |
2966-50-9 - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Introduction | Silver trifluoroacetic acid is the silver salt of trifluoroacetic acid. It is a precious metal catalyst that is used as a catalyst for hydrazone oxide in organic synthesis. Iodine is used as a catalyst for aromatic cycloiodination and regioselective alkylation. |
| application | silver trifluoroacetate can be used as a catalyst for hydrazone oxidation in organic synthesis, combined with iodine as a catalyst for aromatic cycloiodination and regioselective alkylation reaction, etc., and can also be used as a raw material for the preparation of electronic ink, etc. |
| Use | Used as a catalyst for hydrazone oxide in organic synthesis and combined with iodide as a catalyst for aromatic cycloiodination and regioselective alkylation. |
| production method | preparation method 1?? 2AgNO 3 + 2NaOH → Ag 2 O + 2NaNO 3 + H 2 O Ag 2 O + 2CF 3 COOH → 2CF 3 COOAg + H 2 O Dissolve 66g(1.62mol)98% sodium hydroxide in 2L of water for later use. Another 274g(1.62mol) of silver nitrate is dissolved in 500mL of water, under stirring, the prepared sodium hydroxide solution is added, the crystals are separated out, the crystals are filtered, the crystals are washed with water until they are no longer alkaline, and the mixture is drained for later use. Weed 187g(0.81mol) of silver oxide and suspended in 200mL of water, and added 177g(1.55mol) of trifluoroacetic acid. Filtered, the filtrate evaporates to dryness under reduced pressure. The residue was placed in a Soxhlet extractor for extraction with ether. Or dissolve the residue in 1.2L ether and filter through a thin activated carbon layer. After steaming to remove ether, 300g of product was obtained with a yield of 83%. Method 2?? CF 3 COONa + AgNO 3 → CF 3 COOAg + NaNO 3 sodium trifluoroacetate is dissolved in the minimum amount of water, concentrated silver nitrate aqueous solution is added, trace silver chloride is filtered to remove, the filtrate is extracted with ether, and placed overnight. Most silver trifluoroacetate is dissolved in ether. Separate the water layer, concentrate the aqueous solution in a steam bath until a small amount of crystals can be seen when it is cooled, and then extract it with ether. The ether extract is combined, evaporated to dryness on a steam bath, and then ground. Finally stored in a silicone dryer. |
Last Update：2024-04-10 22:29:15
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