specification:hg2424-1993
item |
high grade |
first grade |
conforming product |
calcium content(%) |
6.5-7.0 |
6.5-7.1 |
6.5-7.2 |
acid(%) |
0.5 |
0.5 |
0.5 |
heating reduction(max) |
2.0 |
3.0 |
3.0 |
melting point |
149-155 |
140-155 |
125-155 |
fineness |
99.0 |
98.0 |
95.0 |
cas no.: 1592-23-0
constitutional formula: ca(c17h35coo)2
molecular formula: c36h70o4 ca
molecular weight: m=607.03
physicochemical property : white minute powder, easy to absorb moist, soapy feeling, combustive, innocuous, specific gravity 1.08g/cm3 , melting point:145°c--155°c,insoluble in water, soluble in hot organic solvent and acid. it will decompose with strong acid into stearic acid and calcium salt.