Potassium stearate some simple introduction

1 Stearic acid and potassium hydroxide at elevated temperature , and then cooled to obtain the product .
2 10g of stearic acid was dissolved in 100mL 95% ethanol , with 0.5mol / L alcohol solution of potassium hydroxide titration with Impact modifier  phenolphthalein as an indicator , titrated to the equivalence point, the precipitated potassium stearate soap pump filtration separation . The crude product can be recrystallized from 95% ethanol to give pure product.
Bulking agent ; blowing agents ; anti-caking agent ; emulsifier ; stabilizer. As emulsifiers , can be used in cakes , maximum usage Pigments  is 0.18g/kg. Used as a surfactant and fabric softener .
Potassium stearate, potassium stearate ; potassium stearate white powder , with slight fatty odor . Molecular weight of 322.58 . Soluble in water, alcohol. Slowly soluble in cold water. The litmus and phenolphthalein solution were strongly alkaline , but only to phenolphthalein alcohol solution was slightly alkaline . General merchandise contain a certain proportion of palmitate . Production methods used mainly saponification . With butter, suet and other oils as raw tomatoes with potassium hydroxide solution , saponification reaction, and then salting , separation of glycerol derived. Use of anionic surfactants. Often referred to as potassium soap or soft soap, mainly Optical brightener  used for Cream shampoo and cosmetics as emulsifiers and detergents . The emulsion has a high efficiency, but sensitive to hard water , to produce calcium soaps with hard water , the emulsion variant or destruction , is a calcium -sensitive emulsion , so the cosmetics production process should be noted.
 Properties: potassium stearate appearance of fine white , fluffy powder , creamy feel , no sand feeling, fatty odor , soluble in hot water or alcohol , the solution is alkaline due to hydrolysis .
Main use: This product is widely used in food additives, pharmaceutical , cosmetics and other industries, mainly for food stabilizers, lubricants , emulsifiers , mold release agents , thickeners , accelerators, cosmetic base materials such as glue additive
   Quality index: content greater than 98.0% , acid value :196 -211 , iodine value : less than 4.0% Loss on drying: 4.0% Heavy metal : 10ppm, Arsenic : Less than 3ppm.