China C18h36o2 Stearic Acid Triple Pressed, Find details about China Stearic Acid, Stearic from C18h36o2 Stearic Acid Triple Pressed
Stearic acid is a white or white powder or crystalline lumps of soapy, its profile microstrip fine acicular crystal gloss; a similar oil micro smell, stearic acid soluble in chlorofor or ether, dissolved in ethanol, almost insoluble in water.
Items | Index |
acid value(mgKOH/g) | 208~218 |
Iodine valuee(gl2/100g) | 12~30 |
Value of the number of(mgKOH/g) | 208~220 |
Color and lustrer(#) | <=2 |
freezing point(ºC) | 57~61 |
Water content(%) | <=3 |
C16:0 | >=80% |
C18:0 | 3-4% |
C18:1 | 6% |
C18:2 | 10% |
Application
Widely used in cosmetics, plastic cold plasticizers, release agent, stabilizer, surfactant, rubber vulcanization agent, waterproofing agent, polishing agent, metal soap, softener, pharmaceuticals, and other organic chemicals.
Stearic acid is one of several main long-chain fatty acids that make up oils and fats. It exists in animal fats, oils and some vegetable oils in the form of glycerides. Stearic acid is obtained by hydrolysis of these oils. Stearic acid is a kind of fatty acid that exists widely in nature. It has the chemical properties of general carboxylic acid. Almost all fats and oils contain stearic acid with varying content. The content of stearic acid is higher in animal fat, such as tallow. Up to 24%, the content of vegetable oil is less, tea oil is 0.8%, palm oil is 6%, but the content of cocoa butter is as high as 34%.Formi Acid | 85% min | 90%min | 94%min |
Colour Index | 20max | 10max | 10max |
Sulphate as SO4 | 0.001% max | 0.0005% max | 0.0005%max |
Chloride as Cl | 0.002%max | 0.0005% max | 0.0005%max |
Iron as Fe | 0.0001%max | 0.0001% max | 0.0001% max |
Evaporation Residue | 0.006% max | 0.006% max | 0.006% max |
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