molecular formula : ca(ooch35c17)2 property: white powder, non toxic and no curing pollution with specific gravity of 1.08. it can slightly dissolve in hot ethanol, but not in water. it will be decomposed to stearate or salt when meet strong acid and can absorb moisture in air. much attention shall be paid during storage and transportation. specification: testing items excellent grade 1 free acid(accounted as stearic acid),%¡ü 0.5 0.5 melting point,¡æ 149 ¡« 155 ¡ý140 calcium content, % 6.5 ¡à0.5 6.5 ¡à0.6 heating loss,% ¡ü 2.0 3.0 fineness (mesh of 0.075mm) %¡ý 99.5 99.0 usage : 1.as stabilizer and lubricant of pvc, it is used in film of food package, medical nontoxic soft products. 2.along with basic lead salts and lead soap, it is used in rigid plastic products. 3.as lubricant and mould releasing agent, it is used in polyolefin and polyester to reinforce plastic and resins which are thermo-plastics. 4.as raw material, it is used in flatting agent of paint and core of pens making. package: plastic bag, lined with pe bag, 20kg weight.