Sodium Trifluoromethanesulfinate

Sodium trifluoromethanesulfinate

CH₂F₃NaO₂S

CAS No.: 2926-29-6

Purification: Add 300g of 60–70% sodium trifluoromethanesulfinate industrial product, 20g of anhydrous magnesium sulfate, and 500g of ethyl acetate solvent to a 2000ml three-necked flask fitted with a stirrer. Stir for 0.5 hours at 20–30°C, then cease stirring, discharge, and filter. gather the filtrate, Reintroduce the filter cake into the flask, then fill it with 50 Chemicalbook 0g of ethyl acetate solvent. Stir for 0.5 hours at 20 to 30 degrees Celsius, then cease stirring, empty the flask, filter, and gather the filtrate. Return the cake to the flask, add 300g of ethyl acetate solvent, stir at 20 to 30°C for 0.5 hours, then stop stirring, filter the material and collect the filtrate. Rinse the filter cake with a tiny amount of ethyl acetate solvent and remove it.

3. After 4–5 hours at 55–60°C, push the material into a 5000–liter layered kettle and allow it to stand for layering.
4. After standing for an hour, divide into layers. The desolvent kettle is filled with the acetonitrile layer. Put acetonitrile in the layer of scrap. Using 100 kg of acetonitrile each time, extract three times. For collective desolvation, the extracted material is injected into the desolvent kettle. The bucket with the desolvent kettle is filled with the scraps. 5. Eliminate the solvent, raise the temperature gradually, eliminate the solvent while maintaining a negative pressure of -0.085 MPa, and bring the temperature up to 60°C. Proceed to the following phase of spray drying after weighing and placing the intermediate in a bucket.

6. Transfer the desolvated acetonitrile to the distillation kettle, top up the temperature for distillation, and add 7 kg of potassium permanganate. It will regurgitate normally for roughly ten hours at 80 degrees. The distillation process stops when the temperature rises. The recovered acetonitrile will be sampled, examined, and utilized in the upcoming Chemicalbook article.
7. Sodium trifluoromethylsulfinate is obtained by spray drying the intermediate. Maintain a dry temperature weight of no more than 1% and a spray drying temperature of no more than 180°C. The yield can reach 80%, and the sodium trifluoromethylsulfinate produced has a purity of 98%.

Synonyms:

SODIUMTRIFLUOROMETHANESULPHINATE;SODIUMTRIFLUOROMETHANESULFINATE;TRIFLUOROMETHANESULFINICACIDSODIUMSALT;Sodiumtrifluoromethanesulphinate9Chemicalbook6%;sodiumtrifluoromethanesulfinateCF3NaO2S;finate;Trifluoromethanesulphinicacid,sodiumsalt;Methanesulfinicacid,1,1,1-trifluoro-,sodiuMsalt

Packing, Storage, Handling and Transportation

Nonafluorobutanesulfonyl fluoride should be kept in dark place, sealed in dry and stored in freezer under -20℃

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