Glycerine physical properties

There are physical—chemical differences between fats of the same fatty acid composition, depending on the placement of the fatty acids. For example, cocoa butter and mutton tallow share the same fatty acid composition, but fatty acid placement on the glycerin backbone yields products of very different physical properties. 

The physical properties of the nitric esters resemble in a general way the physical properties of the alcohols from which they are derived. Thus, methyl and ethyl nitrate, like methyl and ethyl alcohol, are volatile liquids nitroglycerin is a viscous oil, more viscous and less volatile than glycol dinitrate as glycerin is more viscous and less volatile than glycol. Nitrocellulose from... 

Vegetable oils are composed of complex mixtures of triglycerides (triesters of glycerine and fatty acids), whose composition depends on the origin of the oil. This composition is generally described in terms of the proportion of the different component fatty acids and is dominated by acids with 18 carbon atoms (Cis) and different degrees of unsaturation (Figure 7). The structures of the fatty acids present in the oil, the number of unsaturations and the stereochemistries, are responsible for the physical properties of the oil. 

Some of the physical properties of glycerin and other desiccants are listed in table 7.1. 

Glycerine has a unique set of physical properties that allow glycerine to be used in a variety of industries. Some of these properties are summarized in the following tables ... 

Some of these interactions are exploited to favorably alter the physical properties of gelatin for example, gelatin is mixed with a plasticizer, such as glycerin, to produce soft gelatin capsules and suppositories see Section 7. 

Soap and Detergent Association, "Physical Properties of Glycerine and Its Solutions", New York, NY. 

PHYSICAL PROPERTIES Oily, colorless to amber liquid aromatic, chemical odor slightly soluble in water and glycerin miscible with aromatic and chlorinated hydrocarbon solvents and alcohols MP (not available) BP (140°C) SG (1.415) VP (0.012 mm Hg at 20 = C). 

PHYSICAL PROPERTIES OF HYDROCARBONS. PART 14-PROPYLENE GLYCOLS AND GLYCERINE. 

The compositions (KM) containing starch (KP), polyvinyl spirit (ITBC) and glycerin cast from a solution in the SQUARE. At composting lUI within 45 day KP and glycerin completely decay, whereas IIBC remains basically not destroyed. IIJI from KM with maintenance of IIBC of 20 % are determined as having required physical characteristics at maintenance of KP in quantities suffieient for biodeeomposition. While adding chitosan into KM lUI with the improved superficial properties at preservation of ability to biodeeomposition is reeeived [6]. 

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