This is solid alcohol, which is made of sodium stearate.

when paraffin wax and alcohol (ethanol) are made, the water is heated to about 81℃, and appropriate amount of stearic acid (about 2:3 with the amount of anhydrous ethanol added later) is added, and then 1.5 times the volume of anhydrous ethanol is added. At this time, the solution is near boiling.

add a proper amount of paraffin into it, and then add 25% NaOH solution, the volume of NaOH solution is about 75% of the volume of alcohol. Then add the same amount of anhydrous alcohol as the first time, stir well, inject the mold while it is hot, and cool to get solid alcohol.

notes for use:?

It is better to have someone around during use. Because it is convenient to use, transport and carry, it causes less pollution to the environment when burning, and it is safer than liquid alcohol. As a solid fuel, it is widely used in catering, tourism and field work.

solid alcohol is also called alcohol block or solid fuel block. Solid alcohol is not solid alcohol, but industrial alcohol (mainly ethanol, CH3CH2OH) is added with coagulant to make it into solid form.

what are the above references? Baidu encyclopedia-solid alcohol