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eBook Chemistry of Soap download

by A. Harris Stone

eBook Chemistry of Soap download ISBN: 0131294520
Author: A. Harris Stone
Publisher: Prentice Hall (June 2006)
ePub: 1530 kb
Fb2: 1513 kb
Rating: 4.7
Other formats: mbr azw lrf doc
Category: Children's Books

The chemistry of soap.

The chemistry of soap. Books for People with Print Disabilities. Internet Archive Books. Uploaded by Lotu Tii on January 18, 2013. SIMILAR ITEMS (based on metadata). Terms of Service (last updated 12/31/2014).

The basic structure of all soaps is essentially the same, consisting of a long hydrophobic (water-fearing) hydrocarbon "tail" and a hydrophilic (waterloving) anionic "head": CH 3 CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 COO − or CH 3 (CH 2 ) n COO −. The length of the hydrocarbon chain ("n") varies with the type of fat or oil but is usually quite long. In making soap, triglycerides in fat or oils are heated in the presence of a strong alkali base such as sodium hydroxide, producing three molecules of soap for every molecule of glycerol. This process is called saponification and is illustrated in Figure 1.

During the 20th century, there were various alleged instances of soap being made from human body fat. During World War I it was claimed in the British press that the Germans had a corpse factory in which they used the bodies of their own soldiers t. . During World War I it was claimed in the British press that the Germans had a corpse factory in which they used the bodies of their own soldiers to make glycerine and soap. During World War II it was believed that soap was being mass-produced from the bodies of the victims of Nazi concentration camps located in German-occupied Poland.

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The importance of soap to human civilization is documented by history, but some problems associated with its . If the pH of a soap solution is lowered by acidic contaminants, insoluble fatty acids precipitate and form a scum.

The importance of soap to human civilization is documented by history, but some problems associated with its use have been recognized. One of these is caused by the weak acidity (pKa ca. ) of the fatty acids. Solutions of alkali metal soaps are slightly alkaline (pH 8 to 9) due to hydrolysis. A second problem is caused by the presence of calcium and magnesium salts in the water supply (hard water)

Soap is a salt of a fatty acid used in a variety of cleansing and lubricating products. In a domestic setting the term usually refers toilet soap, used for washing, bathing, and other types of housekeeping.

Soap is a salt of a fatty acid used in a variety of cleansing and lubricating products. In industry, soaps are used as thickeners, components of some lubricants, and precursors to catalysts. When used for cleaning, soap solubilizes particles and grime, which can then be separated from the article being cleaned

The Chemistry of Soaps - Free download as PDF File . df), Text File . xt) or read online for free. One typical animal fat, stearol, reacts with KOH to form potassium stearate, a soap. Most naturally occuring fats produce a mixture of different salts of fatty acids when they are converted to soap.

The Chemistry of Soaps - Free download as PDF File . The Chemistry of Soaps. The potassium soap formed from your fat is converted to a sodium soap by replacing the potassium ions with sodium ions. A large excess of sodium chloride supplies the sodium ion.