Organic compounds acidic

In sodium chloride solutions the ion transport number for Na+ is about 0.4 compared to about 0.6 for CU. Thus a CX membrane would be expected to polarize at lower current densities than an AX membrane. Careful measurements show that CX membranes do polarize at lower current densities however, the effects on pH are not as significant as those found when AX membranes polarize. Such differences ia behavior have beea satisfactorily explaiaed as resultiag from catalysis of water dissociatioa by weaMy basic groups ia the AX membrane surfaces and/or by weaMy acidic organic compounds absorbed on such surfaces (5). 

Besides water, the diet must provide metabolic fuels (mainly carbohydrates and lipids), protein (for growth and turnover of tissue proteins), fiber (for roughage), minerals (elements with specific metabolic functions), and vitamins and essential fatty acids (organic compounds needed in small amounts for essential metabolic and physiologic functions). The polysaccharides, tri-acylglycerols, and proteins that make up the bulk of the diet must be hydrolyzed to their constituent monosaccharides, fatty acids, and amino acids, respectively, before absorption and utilization. Minerals and vitamins must be released from the complex matrix of food before they can be absorbed and utifized. 

Fatty acids, like DHA, are the byproducts of the breakdown of fats. DHA and other fatty acids are organic acids. Organic compounds are chemical compounds that contain carbon. Many organic acids in the body contain a -COOH group, called a carboxyl group. 

Amino Acids Organic compounds that generally contain an amino (-NH2) and a carboxyl (-COOH) group. Twenty alpha-amino acids are the subunits which are polymerized to form proteins. [NIH]... 

Neutralization of naphthenic acids and other acidic compounds which may be present in fuel. Acidic organic compounds can react with other fuel components to initiate the formation of higher-molecular-weight, fuel insoluble deposits. 

Inorganic Base-Promoted Activation of Acidic Organic Compounds... 

The onium hydroxide then abstracts hydrogen from the acidic organic compound to give the reactive intermediate Q 1 R. ... 

Adenine (A) and cytosine (C) form co-crystals with many acidic organic compounds, but thymine... 

Carboxylic acids Organic compounds containing one or more carboxyl groups. They are weaker acids than the mineral acids such as hydrochloric acid. 

The ionisation constants of many acidic organic compounds determined in water [110a] and in twelve of the most popular dipolar non-HBD solvents [110b] have been compiled, as have the methods of determination [111] and prediction [112] of p.Ka values. Particular attention has been paid to C—H acidic compounds [113]. Whereas the ionisation constants of Bronsted acids and bases for aqueous solutions are well known, the corresponding pAa values for nonaqueous solutions are comparatively scarce. 

Organic acids—Organic compounds with the general formula RC-OH, where R is a hydrocarbon group. 

There are virtually no sources of drinking water on Earth that are not contaminated with xenobiotics. Rain water cleanses the atmosphere as it forms and falls. As a result, it contains dissolved acids, organic compounds, and heavy metals such as mercury and selenium in many areas. Surface collection basins from which potable water is drawn—rivers, streams, and lakes—accumulate ground level pollutants in addition to those carried in rain water. Underground water, which is somewhat filtered and generally contains lesser quantities of pollutants than surface water, may itself be contaminated by ground releases of toxicants and by contaminants produced by chemical reactions in the soil and water. 

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