2013年9月23日星期一

Cadmium zinc stearate and stearic acid , magnesium stearate difference

Technical indicators a zinc stearate , molecular formula : Zn (C17H35COO) 2 two , molecular weight : 631 Third, the production process: stearic acid in hot water and lye saponification reaction with sodium stearate and zinc chloride occurred metathesis reaction of zinc stearate , dehydrated , and Acrylic impact modifier  air drying the finished product . Fourth, the physical and chemical properties : White light powder , specific gravity 1.095 , a greasy feel , insoluble in water , soluble in hot ethanol , benzene and turpentine and other organic solvents, strong acid is decomposed into stearic acid and corresponding zinc ,
  Magnesium stearate technical indicators one , Formula : Mg (C17H35COO) 2 two , sub Quality : 591 Third, the  triple pressed stearic acid production process: stearic acid in hot water and lye saponification reaction with sodium stearate and magnesium occur metathesis reaction of magnesium stearate, dehydrated , and air drying the finished product . Fourth, the physical and chemical properties : White light powder , specific gravity 1.028 , tasteless, slightly soluble in water , soluble in hot ethanol , the event is decomposed into stearic acid and corresponding magnesium salts , this product is hygroscopic .
  Technical indicators a cadmium stearate , molecular formula : (C17H35COO) 2Cb two , Weight: 678 Third, the  Plastic impact modifier production process: stearic acid in hot water and lye saponification reaction with sodium stearate and cadmium nitrate metathesis reaction occurs generate cadmium stearate , after dehydration and air drying the finished product . Fourth, the physical and chemical properties : White light powder , density 1.28g/cm3, insoluble in water. Dissolved in hot ethanol and ether , absorb moisture in the air , the case is decomposed into stearic acid and corresponding cadmium salts .

没有评论:

发表评论