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Potassium salts of fatty acids

SNG Substitute natural gas. soaps Sodium and potassium salts of fatty acids, particularly stearic, palmitic and oleic acids. Animal and vegetable oils and fats, from which soaps are prepared, consist essentially of the glyceryl esters of these acids. In soap manufacture the oil or fat is heated with dilute NaOH (less frequently KOH) solution in large vats. When hydrolysis is complete the soap is salted out , or precipitated from solution by addition of NaCl. The soap is then treated, as required, with perfumes, etc. and made into tablets. [Pg.362]

The raw materials for the manufacture of soap, the alkali salts of saturated and unsaturated C10-C20 carboxylic acids, are natural fats and fatty oils, especially tallow oil and other animal fats (lard), coconut oil, palm kernel oil, peanut oil, and even olive oil. In addition, the tall oil fatty acids, which are obtained in the kraft pulping process, are used for soap production. A typical formulation of fats for the manufacture of soap contains 80-90% tallow oil and 10-20% coconut oil [2]. For the manufacture of soft soaps, the potassium salts of fatty acids are used, as are linseed oil, soybean oil, and cottonseed oil acids. High-quality soap can only be produced by high-quality fats, independent of the soap being produced by saponification of the natural fat with caustic soda solution or by neutralization of distilled fatty acids, obtained by hydrolysis of fats, with soda or caustic soda solutions. Fatty acids produced by paraffin wax oxidation are of inferior quality due to a high content of unwanted byproducts. Therefore in industrially developed countries these fatty acids are not used for the manufacture of soap. This now seems to be true as well for the developing countries. [Pg.2]

Soaps Potassium salts of fatty acids M-Pede Aphid, whitefly, mealybug, powdery mildew Various fruits and vegetables Insecticide, fungicide... [Pg.280]

Soap an emulsifying agent made from sodium or potassium salts of fatty acids. [Pg.338]

A soap is the sodium or potassium salt of a long-chain fatty acid. The fatty acid usually contains 12 to 18 carbon atoms. Solid soaps usually consist of sodium salts of fatty acids, whereas liquid soaps consist of the potassium salts of fatty acids. [Pg.405]

In order to separate the potassium salts of fatty acids from glycerol, the products of the saponification mixture must be acidified. Subsequently, the fatty acids can be extracted by petroleum ether. To identify the fatty acids that were isolated, they must be converted to their respective methyl ester by a perchloric acid catalyzed reaction ... [Pg.422]

Acylate ions are amphiphilic, and the hydrocarbon chains are able to penetrate fatty (hydrophobic) particles, leaving the surface of the particle ionic. (See Fig. 6-26.) Thus, the particle behaves as a micelle and is readily soluble in water. The sodium and potassium salts of fatty acids are soaps. Soaps have poor detergent properties in hard water because the calcium present in such water causes the micelles to aggregate and precipitate. The divalent calcium ion can act as a bridge between two micelles, but since a micelle is polyvalent, a small amount of calcium relative to the amount of the soap can cause all the micelles to aggregate. [Pg.192]

Alkaline hydrolysis (e.g., the Schmidt-Thann-hauser procedure, which employs 1 N KOH at 37°C for 24 hr) cleaves most ester bonds but leaves the amide groups in sphingolipids intact. Alcoholic alkali may be necessary with lipid mixtures that do not disperse readily into aqueous solutions. Potassium hydroxide is preferable because it is more soluble in alcohol than NaOH similarly, potassium salts of fatty acids are more soluble than their equivalent sodium salts. [Pg.189]

Soap is a mixture of the sodium and potassium salts of fatty acids produced by hydrolysis of animal fat. [Pg.750]

Antifoams can be divided into two groups. The first group includes substances, for which the principle of defoaming action is based on the interaction with the foaming agent resulting in formation of insoluble or poorly soluble compounds. For instance, if soluble calcium or aluminium salts (chlorides) are added to the foaming solution of sodium or potassium salts of fatty acids, or cationic surfactants to anionic surfactants solution, insoluble compounds are formed and the foam is destroyed [6]. The less soluble compound formed, the more efficient the antifoam is. [Pg.611]

Pesticidal soaps are potassium salts of fatty acids. The most effective soaps are potassium salts of capric (C10), lauric (C12), myristic (C14), palmitic (C16), and stearic (C,8) acids (Ware and Whitacre, 2004). The chemical structure of potassium laurate is as follows ... [Pg.78]

Fatty acids C10 0 and longer have considerable detergent properties and are not found free within cells. Most cells contain small intracellular fatty acid-binding proteins (FABPs), which are thought to function in part to buffer the detergent effects of free fatty acids. In the commercial sense, soaps are the water-soluble sodium or potassium salts of fatty acids, which are made from fats and oils by treating them chemically with a strong base such as NaOH or KOH. [Pg.883]

The term soap is a class name for the sodium and potassium salts of fatty acids. These fatty acids were found in animal fats and in plant oils such as coconut oil, palm oil, olive oil, castor oil, or cottonseed oil [1-6]. [Pg.124]

Soaps are water-soluble sodium or potassium salts of fatty acids containing 8 to 22 carbon atoms. The fatty acids are generally a mixture of saturated and unsaturated moieties. [Pg.125]

This is soluble in water and can be isolated from the raw wool by aqueous extraction. It contains potassium salts of fatty acids, such as oleic and stearic acids, and potassium carbonate is also present. The simpler organic acids, such as acetic, lactic, butyric, valeric, and capronic acids, have also been found both in the free state and as their potassium salts. Amino acids such as leucine, glycine, and tyrosine have been detected. Suint, therefore, is a complex mixture this might be expected because it is derived from sweat, which is known to be one of the means by which an animal discards unwanted waste products of its metabolism. [Pg.83]

Fatty acids, potassium salts Potassium fatty acid soap Potassium salts of fatty acids Potassium soap Soap, potassium Soaps, potassium. [Pg.508]

Potassium salts of fatty acids 3084 Pradone kombi 1342... [Pg.1060]

Soaps are sodium or potassium salts of fatty acids. Thus, soaps are obtained when fats or oils are hydrolyzed under basic conditions. The hydrolysis of an ester in a basic solution is called saponification—the Latin word for soap is sapo. The following compounds are three of the most common soaps ... [Pg.700]

Hydrolysis by base is referred to as saponification because this is the reaction for manufacturing soaps. The mbcture of the sodium (or potassium) salts of fatty acids is a soap. Section 15.5, including Problems 15.19 through 15.21 and 15.43, should be reviewed for the chemistry of soaps. [Pg.378]

Generally, only one or two fatty acid chains are released by hydrolysis, and a mixture of the sodium and potassium salts of fatty acids along with monoacylglycerol are formed. This mixture is absorbed by intestinal cells, and there reassembled into triacylglycerols. [Pg.479]

CAS 8013-05-6 EINECS/ELINCS 232-388-4 Synonyms Castor oil, potassium salt Fatty acids, castor oil, potassium salts Definition Potassium salt of fatty acids derived from castor oil Toxicology TSCA listed Uses Surfactant in cosmetics emulsifier dispersant mild germicide glycerized rubber lubricant emulsifier, foam stabilizer for... [Pg.3627]

Definition Potassium salt of fatty acids derived from olive oil... [Pg.3651]

Soaps are most often a mixture of several sodium and/or potassium salts of fatty acids, present in the saponified natural oil. For example, the saponification of linseed oil by soda produces a soap whose composition is 51% sodium linolenate, 22% sodium oleate, 17% sodium linoleate, 6% sodium palmitate and 4% sodium stearate. [Pg.12]

Saponification of fats with KOH or NaOH yields soaps, the sodium or potassium salts of fatty acids and glycerol. The behavior of soaps in water solutions and the formation of micelles have already been discussed. [Pg.159]

The object of scouring wool is to remove the wool-fat and wool perspiration (exuded from the skin of sheep), consisting of cholesterol and isocholesterol, and potassium salts of fatty acids, together... [Pg.91]

Although free fatty acids are not esterified under the basic conditions described above, methyl esters can be prepared by exchange with N,N-dimethylformamide dimethyl acetal in the presence of pyridine [913]. Similarly, methyl iodide reacts with sodium or potassium salts of fatty acids in the presence of a polar aprotic solvent such as dimethylacetamide to form methyl esters [41,186]. [Pg.39]

Natural soaps are the sodium and potassium salts of fatty acids. They are produced as a result of the interaction of a caustic alkali and a fat. A typical animal or vegetable fatty acid molecule consists of a long hydrocarbon chain with a terminal carboxyl group. For example in the case of sodium stearate, which was introduced as an example in section 1.6, the fatty acid is stearic acid and it has the chemical formula CH3(CH2)i6COOH. The chemical reaction of stearic acid and sodium hydroxide results in the soap sodium stearate, Ci7H35COO Na+. The commonly occurring fats are lauric, myristic, palmitic, stearic, oleic, etc. Common bars of washing soap will consist of a number of pure soaps. [Pg.38]


See other pages where Potassium salts of fatty acids is mentioned: [Pg.315]    [Pg.116]    [Pg.516]    [Pg.1219]    [Pg.36]    [Pg.502]    [Pg.8]    [Pg.26]    [Pg.339]    [Pg.493]    [Pg.1218]    [Pg.140]    [Pg.195]    [Pg.138]   
See also in sourсe #XX -- [ Pg.78 ]




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