STEARIC ACID
Molecular formula: C18H36O2
Executive Standard: GB-9103-1988
Properties: Stearic acid is one kind of saturated fatty acid, with the relative density of 0.9408 (20 ºC), melting point of 69 ~ 70 ºC, 383 ºC boiling point, refractive index of 1.4299 (80 ºC). The appearance is white or light yellow granular. It is mixture of stearic acid and palmitic acid. It contains a few oleic acid, and a little butter smell. Not dissolved in cool water, easily dissolved in benzene, toluen, chlorofom, carbon tetrachlorid, carbon bisulfide, acetic ester, also in ethanol, aceton.
Specification:
|
Item
|
First(200)
|
Second(400)
|
Third(800)
|
|
Iodine Value g/100g ¡Ü
|
2.0
|
4.0
|
8.0
|
|
Saponification value mg/g
|
2.6~211
|
203~214
|
193~220
|
|
Acid Value mg/g
|
205~210
|
202~212
|
192~218
|
|
Chroma(Hazen)¡Ü
|
200
|
400
|
400
|
|
Freezing point ºC
|
54~57
|
¡Ý54
|
¡Ý52
|
|
Water content % ¡Ü
|
0.20
|
0.20
|
0.30
|
|
Inorganic acid % ¡Ü
|
0.001
|
0.001
|
0.001
|
Application: Stearic acid used as activating agent, plasticizing agent and lubricating agent
Package and storage: Net 25kgs, PP Woven with PE Inner bag or in carton. It should be stored in a well-ventilated area.
