CAS No.: | 57-11-4 |
---|---|
Formula: | C18h36o2 |
EINECS: | 266-928-5 |
Classification: | Stearic Acid |
Appearance: | Powder |
Grade Standard: | Tech |
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Item | Standard |
Appearance | white flake or granule |
Grade | 1865 Triple Pressed |
Iodine value | 2.0max |
Sapon value | 206-211 |
Acid value | 205-210 |
Color, Hazen | 200max |
Titer, ºC | 54-57 |
Moisture,% | 0.2max |
Inorganic,% | 0.001max |
Melting point | 67-72 °C(lit.) |
Storage | in the shade |
Packing | 25kg/bag |
Stearic acid
|
1838
|
1840
|
1841
|
1842
|
1800
|
1810
|
Iodine value (gI2/100g)
|
≤0.5
|
≤0.8
|
≤0.5
|
≤0.5
|
≤0.8
|
≤8.0
|
Saponification value(mgKOH/g)
|
210-214
|
207-212
|
207-212
|
206-211
|
206-212
|
≥196.00
|
Acid value (mgKOH/g)
|
209-212
|
206-211
|
206-211
|
208-210
|
205-211
|
≥195.00
|
Color (Hazen)
|
≤100
|
≤100
|
≤80
|
≤60
|
≤160
|
≤50
|
Freezing point (deg.c)
|
53-57
|
54-57
|
54-57
|
54-57
|
54-57
|
≥52.0
|
Moisture %
|
≤0.2
|
≤0.2
|
≤0.2
|
≤0.2
|
≤0.2
|
≤0.2
|
C18 %
|
36-39
|
38-45
|
38-42
|
41-45
|
38-45
|
8.00-12.0
|
Stearic acid is widely used in cosmetics, plastic cold-resistant plasticizers, mold release agents, stabilizers, surfactants, rubber vulcanization accelerators, water repellents, polishing agents, metal soaps, metal mineral flotation agents, softeners, pharmaceuticals Products and other organic chemicals.
Further, stearic acid can also be used as a solvent for oil-soluble pigments, a crayon smoothing agent, a stencil polishing agent, an emulsifier of stearic acid glycerin, and the like.
Stearic acid is used as a raw material for lubricants, antifoaming agents and food additives such as stearic acid glycerides, sorbitan stearate, sucrose esters, etc. in the food industry. Used as raw materials for auxiliaries and as raw materials for daily chemical products.
Stearic acid is widely used in the manufacture of PVC plastic pipes, sheets, profiles and films. It is a PVC heat stabilizer with good lubricity and good light and heat stability. In plastic PVC pipe, stearic acid helps to prevent "coking" during processing. It is an effective heat stabilizer added to PVC film processing, and it can prevent the finished film caused by exposure to sulfide. Discoloration.
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