2013年10月8日星期二

Simple exposition of sodium

Sodium stearate, calcium stearate and sodium chloride by metathesis reaction derived fine white powder , metallic calcium content of 6.5% , mp 149-155 ℃, heating loss is less than 2% , the relative density of 1.08 , fineness by 0.075mm sieve 99.5% , free acid ( as stearic acid ) 0.5% , in  red iron oxide the air, water absorption .
Sodium stearate, calcium stearate and sodium chloride by metathesis reaction derived fine white powder , metallic calcium content of 6.5% , mp 149-155 ℃, heating loss is less than 2% , the relative density of 1.08 , fineness by 0.075mm sieve 99.5% , free acid ( as stearic acid ) 0.5% , in the air, water absorption .
The product can be used as a thermal stabilizer of polyethylene , has excellent lubricity, good processability , and an epoxy compound  black iron oxide with zinc soap and having a synergistic effect , can improve the thermal stability, and the base of lead salts and lead soap and used hardware products , you can improve the speed of gelation . This product can be used in polyethylene and polypropylene resins to eliminate residual catalyst on the adverse effects of color and stability . This product is also widely used as a polyolefin , polyester reinforced plastic , phenolic resin, amino resin, thermosetting plastics lubricants and release agents.
Sodium stearate of formula Na (C18H35O2) { i.e. (C17H35COO) Na}, molecular weight 306.46 . 7.51% sodium containing stearic acid 92.50 , purity 99.5%. White powder or white block, with creamy , fatty taste , soluble Plastic chemical  in  water or alcohol-water solution is alkaline due to hydrolysis . Melting point 100 ~ 110 ℃, should be kept in kept in a cool , dry, well ventilated place . Sodium stearate, polyethylene can be used as a heat stabilizer , has excellent lubricity, good processability , and an epoxy compound with zinc soap and having a synergistic effect , can improve the thermal stability, and the base of lead salts and lead soaps and for hard products , the gelling speed can be improved . This product can be used in polyethylene and polypropylene resins to eliminate residual catalyst on the adverse effects of color and stability . This product is also widely used as a polyolefin , polyester reinforced plastic , phenolic resin, amino resin, thermosetting plastics lubricants and release agents .

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