Research on Sodium Stearate Soap

wallpapers Industry 2021-06-22
Research on Sodium Stearate Soap
The simple anionic surfactant, sodium stearate, is one of the most non-toxic of existing surfactants, and of course it is also one of the most economically valuable. Sodium stearate has limited solubility in cold water, but in hot The solution is very active . Perhaps, sodium stearate is used more often as a washing and emulsifier than as a wetting agent. And its many uses are derived from being used as a detergent, emulsifier and wetting agent. Sodium Fatty Acid (C_(17)H_(35) COONa) is a creamy, velvet-like white fine powder with a slight smell of tallow, with a molecular weight of 306.46.
Study on the effect of sodium stearate modified nanometer magnesium hydroxide
The process of wet surface modification of nano-magnesium hydroxide using sodium stearate is mainly studied. The surface physical and chemical properties of the powder before and after the modification, such as BET, sedimentation speed, oil absorption value and viscosity, are used to evaluate the performance of nano-magnesium hydroxide. At the same time, the powder before and after the modification is applied to the soft PVC system to determine the flame retardant and mechanical properties of the system. The experimental results show that the surface properties of the modified nano-magnesium hydroxide powder have occurred Obvious changes, the specific surface area increases, the lipophilicity and the dispersibility in the organic phase are significantly improved; the affinity with PVC is enhanced, and the flame retardant and mechanical properties of the system are improved.
Determination of Sodium Stearate in Sodium Aluminate Solution by Solvent Flotation-Gas Chromatography
Solvent flotation-gas chromatography was used to determine the sodium stearate in the sodium aluminate solution. Cyclohexanone was selected as the flotation solvent, and the sample was acidified with 1:1 (V/V) hydrochloric acid, and then the sample was acidified at 40 mL/min. Nitrogen was introduced at a speed of 30 min with cyclohexanone as the flotation solvent for enrichment, and the methyl esterification was carried out by heating 3 min with CH3OH/BF3 in a water bath at 80°C. The capillary column PEG-20M (30 m×0.32 mm, id) separation, diethyl phthalate as internal standard, hydrogen flame ionization detector detection. The method shows a good linear relationship in the mass ratio of stearic acid to internal standard in the range of 0.1-10 (r=0.9997); the relative standard deviation of sodium stearate was 1.35% (n=7); the recovery rate was 96.9%-98.1%.

Tag: stearate   Sodium