E-liquid and atomization device containing same

Abstract

This application relates to an e-liquid and an atomization device including the same. The e-liquid includes nicotine and organic acids, wherein the molar ratio of protonated nicotine to unprotonated nicotine in an aerosol produced by heating and atomizing the e-liquid is 1:0.1 to 1:2.5. The e-liquid according to this application may effectively enhance users' throat hit and provide users with a desirable smoking experience.

1 . An e-liquid, comprising nicotine and organic acids, wherein the molar ratio of protonated nicotine to unprotonated nicotine in an aerosol produced by heating and atomizing the e-liquid is 1:0.1 to 1:2.5. 
     
     
         2 . The e-liquid according to  claim 1 , wherein the molar ratio of the organic acids to the nicotine is 0.1:1 to 2:1. 
     
     
         3 . The e-liquid according to  claim 1 , wherein based on the total weight of the e-liquid, the weight percentage of the nicotine is greater than 0% and less than or equal to 6%. 
     
     
         4 . The e-liquid according to  claim 1 , wherein the organic acids comprise at least one of benzoic acid, levulinic acid, lactic acid, citric acid, lauric acid, malic acid or succinic acid. 
     
     
         5 . The e-liquid according to  claim 1 , wherein the organic acids comprise benzoic acid, levulinic acid, and lactic acid in a molar ratio of (0.5-1.5):(0.1-0.3):(0.5-1.1). 
     
     
         6 . The e-liquid according to  claim 1 , wherein the organic acids comprise benzoic acid, and based on the total weight of the e-liquid, the weight percentage of the benzoic acid is 0.1% to 0.5%. 
     
     
         7 . The e-liquid according to  claim 1 , wherein the organic acids comprise levulinic acid, and based on the total weight of the e-liquid, the weight percentage of the levulinic acid is 0.001% to 0.5%. 
     
     
         8 . The e-liquid according to  claim 1 , wherein the organic acids comprise lactic acid, and based on the total weight of the e-liquid, the weight percentage of the lactic acid is 0.01% to 0.5%. 
     
     
         9 . The e-liquid according to  claim 1 , wherein the e-liquid further comprises cotinine, and based on the total weight of the e-liquid, the weight percentage of the cotinine is greater than 0% and less than or equal to 4.5%. 
     
     
         10 . The e-liquid according to  claim 9 , wherein the molar ratio of the cotinine to the nicotine is 0.1:1 to 1.5:1. 
     
     
         11 . The e-liquid according to  claim 1 , wherein the e-liquid further comprises a cooling agent, the cooling agent comprising at least one of menthol, menthone, isomenthone, isopulegol, menthyl acetate, menthyl lactate, WS-23, WS-3, and WS-5. 
     
     
         12 . The e-liquid according to  claim 11 , wherein based on the total weight of the e-liquid, the weight percentage of the cooling agent in the e-liquid is 0.001% to 10%. 
     
     
         13 . The e-liquid according to  claim 1 , wherein the e-liquid further comprises essence, the essence comprising at least one of d-limonene, benzyl alcohol, ethyl butyrate, linalool, isobutyl acetate, isoamyl acetate, benzyl benzoate, leaf alcohol, ethyl propionate, citral, y-decalactone, decanal, ethyl acetate, ethyl 2-methylbutyrate, 2-methylbutyl acetate, 2-methylbutyraldehyde, myrcene, ethyl hexanoate, peach aldehyde, ethyl isovalerate, leaf acetate, acetic acid, or benzaldehyde. 
     
     
         14 . The e-liquid according to  claim 13 , wherein based on the total weight of the e-liquid, the weight percentage of the essence in the e-liquid is 0.001% to 10%. 
     
     
         15 . An atomization device, comprising the e-liquid according to  claim 1 . 
     
     
         16 . The atomization device according to  claim 15 , comprising an e-cigarette, an ultrasonic atomizer, or a mesh atomizer.