≥98.0% Sodium Trifluoromethanesulfinate CAS No.: 2926-29-6

≥98.0% Sodium trifluoromethanesulfinate CAS No.: 2926-29-6

CH₂F₃NaO₂S

CAS No.: 2926-29-6

One sulfonate molecule that can be utilized as an intermediate in chemical synthesis is sodium trifluoromethanesulfinate. Summary Lithium bistrifluoromethanesulfonimide is mostly made from sodium trifluoromethanesulfinate (CF3NaO2S). Insurance powder is used as the deionizer and bromotrifluoromethane as the raw material in its mostly autoclave-based production process. The synthesis of halogen agent involves the use of sodium dihydrogen phosphate as a neutralizing agent, simultaneous addition of water and acetonitrile, and high-pressure reaction.

Preparation：

Being ready 1. To begin, use vacuum to pump 1625 kg of water into the 5000 L stainless steel high-pressure reactor. Next, open the manhole cover, stir, add 120 kg of caustic soda, and stir for 30 minutes. Next, add 1100 kg of trisodium phosphate and 600 kg of insurance powder, in that order, and tighten the manhole covers. Pump in 1100 kg of acetonitrile under vacuum, then increase the pressure to -0.08 MPa to boost the temperature.
2. In the event that the temperature reaches Chemicalbook 40°C, release the reaction's leftover gas in the reaction kettle first. Next, wait until the reaction and recovery kettle pressures are equal before releasing the bromotrifluoromethane gas from the recovery tank. Once the cylinder has been balanced, open it and introduce 310 kg of bromotrifluoromethane gas. This will raise the cylinder's temperature to 55°C and maintain its warmth.
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. 100 kilogram of acetonitrile was extracted three times. Barrels are used to hold the leftover material after the extracted material is pushed into the desolvent kettle for simultaneous desolvation.
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 into the Chemicalbook distillation kettle, top up the temperature for distillation to 80 degrees, add 7 kg of potassium permanganate, and then reflux the mixture as usual for approximately 10 hours. The distillation process stops when the temperature rises. For the following feeding, a sample of the acetonitrile to be recovered is taken and examined.
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%.

[Boiling point]: 222.8ºC at 760 mmHg

[Molecular formula]: CF₃NaO₂S

[Molecular weight]: 156.059

[Flash Point]: 88.5ºC

[Exact Mass]: 155.946884

[PSA]: 59.34000

[LogP]: 1.25100

[Vapor pressure]: 0.0369mmHg at 25℃

[ Storage conditions ]:

Sealed in a cool, dry environment

[Symbol]: GHS07

[Signal word]: Warning

[Hazard Statement]: H315-H319

[Cautionary Statement]: P305 + P351 + P338

[Hazard Code (Europe)]: Xi

[Risk Statement (Europe)]: 36/37/38

[Safety Statement (Europe)]: S26-S36-S37-S39

[Dangerous Goods Transport Code]: NONH for all modes of transport

[HS Code]: 2930909090

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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