Glycerol humectant

Humectants. In certain foods, it is necessary to control the amount of water that enters or exits the product. It is for this purpose that humectants are employed. Polyhydric alcohols (polyols), which include propylene glycol [57-55-6], C2Hg02, glycerol [56-81-5], C HgO, sorbitol [50-70-4], and mannitol [69-65-8], contain numerous hydroxyl groups (see Alcohols,polyhydric). Their stmcture makes them hydrophilic and... 

Humectants such as propylene glycol, glycerol, sorbitol, or calcium chloride can prevent drying and caking. 

Printing of wool or silk with acid dyes is of minor importance. For these fibers the print paste is made with dye solvent, humectant (glycerol and urea), a suitable thickener, and dilute organic acid. An oxidising agent is also added. Fixation follows the procedure for polyamide with fully saturated steam. 

Hull cell PHYS CHEM An electrodeposition cell that operates within a simultaneous range of known current densities. hoi, sel humectant chem A substance which absorbs or retains moisture examples are glycerol, propylene glycol, and sorbitol used in preparing confectioneries and dried fruit. hyu mek-tont ... 

Humectants. A substance such as glycerol with an affinity for water that is used to keep moisture content of products like baked goods and... 

Hydrolysis of Chlorinated Hydrocarbons. The production of oxygenated aliphatics by the hydrolysis of chlorinated hydrocarbons includes the synthetic glycerol process and the amyl alcohols process. Glycerol (7) is made from propylene via allyl chloride (CH2 CHCH2C1), and competes with glycerol made from fats and oils for use in dynamite and alkyd resins, as a tobacco humectant and cellophane plasticizer, in cosmetics and pharmaceuticals, and for other applications. Amyl alcohols have been made since 1926 by the alkali hydrolysis of a mixture of amyl chlorides, made by the chlorination of pentanes from natural gasoline. Production from this source far exceeds the supply from the fusel oil by-product of fermentation processes. Amyl alcohol and its derivatives are used mainly as solvents. 

Flavor and taste Humectants Propylene glycol Glycerol... 

Okamoto et al. investigated the skin-moisturizing effect of glycerol depending on the absorbed amount in SC and the concentration profile. The skin-moisturizing effect increased linearly with the amount of absorbed humectant in the SC and was dependent on the hygroscopicity of the humectants. A repeated application twice daily for 10 days leads to an accumulation of glycerol in SC.16... 

Froebe observed that glycerol behaves as a humectant at high humidity (92% relative humidity), but not at very low humidity (6% relative humidity).23... 

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