Analytes - stearic acid
stearic acid: CAS No. 57-11-4, C18H36O2, molecular weight 284.48, boiling point 350°C, melting point 69.4°C, density 0.94gm/mL, vapor pressure 0.00mm Hg at 25°C, flash point 196°C, autoignition temperature 395°C (refined), slightly water soluble is a colorless waxy solid prepared synthetically by hydrogenation of cottonseed and other vegetable oils or from tallow acid by selective crystallization or solvent separation, and is coproduced with oleic acid. It is used in manufacturing stearates and stearate driers, lubricants, soaps, greases, pharmaceuticals and cosmetics, accelerator activators, dispersing agents and softeners in rubber compounds, shoe and metal polishes, coatings, suppositories and ointments, candles, paper sizing ingredients (specialty papers), polyvinyl chloride heat costabilizers and synthetic rubber vulcanization activators. It is most frequently measured in commercial preparations and the bulk commodity using reversed phase HPLC, GC/FID and GC/MS.