Name | Lithium trifluoromethanesulfonate |
Synonyms | PFM-LI ithium trifL Lithium triflate Lithium Trifluoro Methylsulphate Lithium Trifluoromethanesulfonic Lithium trifluoromethanesulfonate Trifluoromethanesulphonic acid lithium salt Lithium triflate~Trifluoromethanesulphonic acid lithium salt |
CAS | 33454-82-9 |
EINECS | 251-528-5 |
InChI | InChI=1/CHF3O3S.Li/c2-1(3,4)8(5,6)7;/h(H,5,6,7);/q;+1/p-1 |
Molecular Formula | CF3LiO3S |
Molar Mass | 156.01 |
Density | 1,9 g/cm3 |
Melting Point | >300 °C (lit.) |
Water Solubility | soluble |
Solubility | Water |
Appearance | White powder |
Color | White or colorless |
BRN | 4301818 |
Storage Condition | Inert atmosphere,Room Temperature |
Stability | hygroscopic |
Sensitive | Moisture Sensitive |
MDL | MFCD00013227 |
Hazard Symbols | Xi - Irritant |
Risk Codes | 36/37/38 - 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 - Wear suitable protective clothing. S37/39 - Wear suitable gloves and eye/face protection |
WGK Germany | 3 |
FLUKA BRAND F CODES | 3-10 |
TSCA | Yes |
HS Code | 29049020 |
Hazard Note | Irritant |
LogP | 0.3 at 25℃ and pH1 |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
overview | the conductivity and electrochemical stability of lithium trifluoromethanesulfonate are not as good as LiPF6, but its thermal stability, water absorption decomposition and cycle performance are higher than LiPF6. when it is applied to solid electrolytes, the structure and composition of the passivation layer between the electrolyte and the negative electrode material interface are improved due to its stable anion, which is conducive to the stability of electrolyte, passivation film and electrode. |
preparation | 80.06g of liquid SO3 is added into the reaction container, stirred at 25 ℃ at a constant temperature, 112g of CHF3 gas is slowly and continuously filled within 2 hours, and stirred continuously for 1 hour; The liquid in the reaction container is heated to 60 ℃, and the tail gas is absorbed with NaOH solution and organic solvent acetone, when no tail gas is discharged, the liquid in the reaction container is cooled to room temperature for later use; 45.0g of lithium carbonate is added to the new reaction container, 450g of deionized water is added and stirred evenly, the cooled reaction liquid is slowly added dropwise, emptying and cooling are started, the temperature is controlled at 45 ℃, the dropping time is controlled at about 1 hour, and the constant temperature reaction is continued for 3 hours after the dropping is completed; filter the reaction liquid, the mother liquor was evaporated to obtain a white powder containing lithium trifluoromethylsulfonate and a small amount of lithium carbonate. The powder was dissolved with 800g of dimethyl carbonate, and 126g of white powder lithium trifluoromethanesulfonate with a purity of 99.93% was obtained by filtration, recrystallization, drying and the like, with an overall yield of 80.7%. |
use | plant growth regulator; Catalyst and auxiliary |