Nicotine formulation comprising metal salt

Abstract

A nicotine formulation for an aerosol-generating system is provided, the nicotine formulation including: one or more water-miscible polyhydric alcohols; one or more metal salts; and one or more organic acids, the nicotine formulation having a metal salt content of greater than or equal to about 0.5 percent by weight, the one or more metal salts being selected from the group consisting of metal benzoates, metal cinnamates, metal cycloheptanecarboxylates, metal levulinates, metal propanoates, metal stearates, and metal undecanoates, and the nicotine formulation having an organic acid content of between about 0.5 percent and about 4 percent by weight. An aerosol-generating article and an aerosol-generating system are also provided.

1 .- 15 . (canceled) 
     
     
         16 . A nicotine formulation for an aerosol-generating system, the nicotine formulation comprising:
 one or more water-miscible polyhydric alcohols;   one or more metal salts; and   one or more organic acids,   wherein the nicotine formulation has a metal salt content of greater than or equal to about 0.5 percent by weight,   wherein the one or more metal salts are selected from the group consisting of metal benzoates, metal cinnamates, metal cycloheptanecarboxylates, metal levulinates, metal propanoates, metal stearates, and metal undecanoates, and   wherein the nicotine formulation has an organic acid content of between about 0.5 percent and about 4 percent by weight.   
     
     
         17 . The nicotine formulation according to  claim 16 , wherein the nicotine formulation has a metal salt content of less than or equal to about 15 percent by weight. 
     
     
         18 . The nicotine formulation according to  claim 16 , wherein the one or more metal salts are selected from the group consisting of metal cinnamates, metal cycloheptanecarboxylates, metal stearates, and metal undecanoates. 
     
     
         19 . The nicotine formulation according to  claim 16 , wherein the one or more metal salts comprise sodium stearate. 
     
     
         20 . The nicotine formulation according to  claim 16 , further comprising sodium stearate,
 wherein the nicotine formulation has a sodium stearate content of greater than or equal to about 0.25 percent by weight.   
     
     
         21 . The nicotine formulation according to  claim 16 , wherein the nicotine formulation has a water-miscible polyhydric alcohol content of at least about 40 percent by weight. 
     
     
         22 . The nicotine formulation according to  claim 16 , wherein the one or more water-miscible polyhydric alcohols comprise glycerine. 
     
     
         23 . The nicotine formulation according to  claim 22 , wherein the one or more water-miscible polyhydric alcohols comprise glycerine and propylene glycol. 
     
     
         24 . The nicotine formulation according to  claim 23 , wherein a ratio of the weight percent glycerine content to the weight percent propylene glycol content of the nicotine formulation is greater than or equal to about 1. 
     
     
         25 . The nicotine formulation according to  claim 16 , further comprising water. 
     
     
         26 . The nicotine formulation according to  claim 25 , wherein the nicotine formulation has a water content of less than or equal to about 10 percent by weight. 
     
     
         27 . The nicotine formulation according to  claim 16 , wherein the nicotine formulation has a viscosity at 25° C. of greater than or equal to about 10 Pa·s. 
     
     
         28 . An aerosol-generating article for an aerosol-generating system, the aerosol-generating article containing a nicotine formulation according to  claim 16 . 
     
     
         29 . An aerosol-generating system, comprising:
 a nicotine formulation according to  claim 16 ; and   an atomiser configured to generate an aerosol from the nicotine formulation.