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Food Grade Emulsifier TWEEN 20 (T-20)

Views: 0     Author: Site Editor     Publish Time: 2024-03-21      Origin: Site


What is food grade Emulsifier TWEEN 20(t-20)? What is the role of food additives? The food grade emulsifier TWEEN 20(t-20) is an amber oily liquid; It has a distinctive smell and a faint bitter taste. The relative density is 1.01, the boiling point is greater than 100℃, the flash point is 321℃, the refractive index is 1.472, and the viscosity is (25℃) 0.25-0.40 pa·s. There are many hydrophilic groups in the molecule, can be miscible with water, ethanol, methanol and ethyl acetate, insoluble in liquid paraffin, non-volatile oil and light oil, this product can be dissolved in 130 parts of cottonseed oil and 200 parts of cottonseed oil. Partial toluene, 5% aqueous ph 5 ~ 7. Soluble in corn oil, dioxane, fiber soluble agent, methanol, ethanol, high concentration soluble in mineral oil, cottonseed oil, acetonitrile, ethyl acetate, ethylene glycol; In toluene, cloudy in petroleum ether; Dispersed in water; hlb16.7.

Function and use of food grade emulsifier TWEEN 20(t-20). Food grade emulsifier Twain 20(t-20) is an oil-in-water (o/w) emulsifier that can be used as a solubilizer, diffuser, stabilizer, antistatic agent, mineral oil emulsifier, cosmetic emulsifier, pharmaceutical emulsifier, dye cosolvent Do not let steam escape from the condenser, the saponification reaction is complete. Using phenolphthalein as an indicator, the excess potassium hydroxide was titrated with standard hydrochloric acid solution while hot, and kept boiling until the end of titration. Measurement of hydroxyl value Hydroxyl value refers to the number of milligrams of potassium hydroxide consumed to neutralize the hydroxyl group in 1g of acetylated material. The sample was weighed about 5g(accurate to 0.001g), placed in a flask of dry weighing, 15ml of acetylation reagent was added, food-grade emulsifier Twain 20(t-20) was fitted with a condenser, and water was boiled. The flask is heated over the bath for 1 hour, at which point the hydroxyl group is esterified.

During the extraction process of food grade emulsifier TWEEN 20(t-20), distilled water is added through a condenser to hydrolyze excess acetic anhydride. The flask and its contents were cooled to below 30 degrees Celsius, 25 ml of sodium hydroxide standard solution (0.5mol/l) was added, and the solution of phenolphthalide was used as an indicator. The end point was titrated with sodium hydroxide standard solution under rotation until the solution turned pink. The free acid in the test solution was titrated with potassium hydroxide standard solution with phenolphthalein as the indicator, and the acid value was obtained by titration. Determination of Water content The water content of a sample is measured by the Carl Fischer method. Water can react with Karl Fischer's reagent, so in the micro moisture meter, the sample is titrated with Karl Fischer's reagent, and the titration result is converted to the water equivalent of Karl Fischer's reagent, and the moisture is obtained. Herfisher's reagent is a solution containing 100 g of anhydrous sulfur dioxide in 1000 ml of 50% (v/v) anhydrous methanol (water content less than 0.05% (m/m)) solution.

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