methyl stearate is an ester organic compound, also known as methyl octadecanoic acid. it is a monoalkyl ester formed from long-chain fatty acids. it is a colorless or slightly yellow transparent oily liquid to semi-solid at room temperature, with excellent permeability, thermal stability and antistatic properties.
the specific physical and chemical data of methyl stearate are as follows:
density: 0.863g/cm3;
melting point: 37- 39℃;
boiling point: 355.5°cat760mmhg;
flash point: 169.3°c;
vapor pressure: 3.11e-05mmhgat25°c;
refractive index: 1.444;
acid value mgkoh/g: ≤1;
saponification value mgkoh/g: 180-190;
iodine value gi2/100g: ≤2;
freezing point ℃: 30-33;
c18: >80.
solubility: insoluble in water, soluble in methanol, ethanol, dmso and other organic solvents.
