Stearic acid
Chemical name: Stearic acid
Aliases: octadecanoic acid; octadecanoic acid; Si Diling; fatty acid; stearic acid; stearic acid; octadecanoic acid;
Ammonium octadecanoate; Ammonium stearate and stearate
Structural formula:
Molecular formula: C18H36O2
CAS No. 57-11-4
EINECS No.266-928-5
Molecular weight: 284.48
Technical index:
project | standard |
Acid value(mgKOH/g),≥ |
195 |
Saponification value(mgKOH/g),≥ |
196 |
Iodine value(gl2/100g),≤ |
8.0 |
Freezing point,℃≤ |
50 |
Moisture,%≤ |
0.4 |
Product shape | Bead or flake |
performance:A high-grade saturated fatty acid, the pure product is white soft pieces with gloss. The relative density is 0.9408 (20℃), the melting point is 69~70℃, the boiling point is 383℃, and the refractive index is 1.4299 (80℃). The industrial product is white or yellowish granular. It is a mixture of stearic acid and palmitic acid, and contains a small amount of oil. Sour, slightly buttery smell. Very slightly soluble in cold water, soluble in benzene, toluene, chloroform, carbon tetrachloride, carbon disulfide, amyl acetate, etc., and also soluble in ethanol and acetone.
application:Stearic acid plays an important role in the synthesis and processing of rubber. Stearic acid is a vulcanization active agent widely used in natural rubber, synthetic rubber and latex, and can also be used as a plasticizer and softener. In the process of producing synthetic rubber, stearic acid must be added as an emulsifier. In the production of foam rubber, stearic acid can be used as a foaming agent, and stearic acid can also be used as a release agent for rubber products.
Packing: composite paper bag lined with plastic film bag, net weight 25kgs.
Storage: Sealed and stored in a cool, dry, well-ventilated place, away from direct sunlight.
Safety and toxicity: Please refer to the relevant product safety data (MSDS).
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