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nature : CH3 (CH2) 16COOH names 18 (n) Acid. Stearin is composed of fine fatty acids. For pure white with a shiny soft patch. Density 0.9408. The temperature 70 ° C ~ 71. The boiling point of 383 ° C, 1.4299 refractive index. 80 ~ 100 ° C will slowly volatile. Industrial-1 (formerly three pressure, after three crushing), 2 (formerly two pressure, squeezing through second) and 3 (formerly known as a pressure, after a crushing or squeezing through). Based on stearic acid and palmitic acid containing the mixed acid. 1 and 2 is stearic acid, or with a sheen of grain containing a white waxy solid. Three stearate is pale yellow waxy solid. Do not dissolve in water. Cold slightly soluble in ethanol, are more prone to heat dissolved. Soluble acetone and benzene. Soluble in the ether, chloroform, carbon tetrachloride and carbon disulfide. The system for cosmetics, surfactant, rubber compounding agent, waterproofing agent, polishes, metal soap, softener, etc.. By hardening oil, cattle butter or Suet hydrolysis after distillation and exploitation (with or without crushing) obtained.
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