Making Solid Soap with Glycerin

Regarding your question about using Glycerin 99.5% to make soap and if it will solidify when heated, Glycerin itself is a liquid humectant and solvent. Heating Glycerin alone will not cause it to solidify into a bar of soap.

To create a solid soap, you typically need to include hardening agents in your formulation. Based on the available information, Sodium Stearate is a suitable ingredient that acts as a texture builder and hardening agent for various formulas, including solid sticks.

Your proposed formula includes Glycerin, Honey, Turmeric Extract, Vitamin E, and Fragrance. While these ingredients have beneficial properties, Glycerin at such a high percentage (97.80%) combined with these other liquid or extract ingredients will result in a liquid or gel consistency, not a solid soap bar.

To achieve a solid soap, you would need to incorporate a significant amount of a hardening agent like Sodium Stearate into your formula. The exact percentage would depend on the desired hardness of the final product. Traditional solid soap making also involves the saponification of oils or fatty acids with an alkali, or using a pre-made melt-and-pour soap base which already contains the necessary components for solidification.

Therefore, to make a solid soap from your ingredients, you would need to add a hardening agent such as Sodium Stearate.