Deodorization glycerol

Chem. Descrip. Deodorized glycerol ester of wood rosin, chewing gum grade... 

In medicated soaps, substances of medicinal value are added. In some soaps, deodorants are added. Shaving soaps contain glycerol to prevent rapid drying. A gum called, rosin is added while making them. It forms sodium roslnate which lathers well. Laundry soaps contain fillers like sodium roslnate, sodium silicate, borax and sodium carbonate. 

Viscous, amber-colored liquid. Viscosity 69 poises at 25 (about that of 95% glycerol). Viscosity reduced considerably by heating to 120-140"F when it may be sprayed directly. dB 1.59-1.63. n f 1,56-1-57. Insol in water miscible with aliphatic and aromatic hydrocarbon solvents, including deodorized kerosene. Loses its chlorine in presence of alkaline reagents, and should not be formulated with any solvent, carrier, diluent or emulsifier, which has an alkaline reaction. LDM i.p. in male rats 343 mg/kg, R. B. Harbison, Toxicol. Appi. Pharmacol. 32, 443 (1975). 

Function in Formula Controlled delivery of silicones, esters, mineral oils, solvents, waxes, glycerols, glycols, water, perfumes to the skin. Allows formulator to combine incompatible materials in same formula. Reduces comedone formation. Absorbs excess oil and sebum from the skin. Used in pigmented makeup, sun care products, skin creams, and lotions, antiperspirants and deodorants, body powders, perfumes, pressed powders, facial cleansers Solubility Characteristics Insoluble, cross-linked polymer... 

Interesterification is performed either by chemical or enzyme catalysis and involves at least two oils that have different fatty acid compositions. In chemical interesterification, alkali metals (sodium, potassium) and alkali-metal alcoholates (e.g., methylate, ethylate) are used as catalysts. Sodium methylate is the most widely used catalyst. The dried and deacidified oil is stirred at 80 to 100°C in the presence of alcoholate (0.1-0.3% of fat weight) and when the reaction is completed the catalyst is destroyed, by addition of water, and subsequently removed. The interesterified fat is recovered and then bleached and deodorized. Chemical interesterification progresses randomly with no regioselectivity (positional specificity) on the carbons of the glycerol moiety of the TAG (Gunstone, 1994). 

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