Butyric acid, calcium salt

Bleach (chloride of lime) Bromine Butyl acetate Butyl phthalate Butyric acid Calcium carbide Calcium cyanamide Calcium hypochlorite Calcium nitrate Calcium potassium ferrocyan-ide (double salt)... 

Some Effects of Lipolysis. The most serious effect of lipolysis is the appearance of the so-called rancid flavor which becomes detectable in milk when the ADV exceeds 1.2-1.5 mEq/liter (Brathen 1980). The fatty acids and their soaps, which are thought to be implicated in the rancid flavor, have been studied in an effort to assess the role of the individual acids in the overall rancid flavor picture. Scanlan et al (1965) reported that only the even-numbered fatty acids from C4 to Cl2 account for the contribution of fatty acids to the flavor, but that no single acid exerts a predominating influence. Another study has implicated the sodium and/or calcium salts of capric and lauric acids as major contributors to the rancid flavor (Al-Shabibi, et al. 1964). Butyric acid, assumed to be the compound most intimately associated with the flavor, was not singled out in either study as being especially involved. 

HI - BUTYRIC ACID, 9-(2,9-DIHYDROXY-3,3-OIM6THYLBUTYRAMIDO)-, CALCIUM SALT, HYORATE (9 2 1)... 

The presence of butyric acid in this mixture can be shown in another way as follows Dissolve about 0.5 gram of the salt in 5 cc. of water. Acidify with dilute sulphuric acid, warm to liberate any carbon dioxide present. Neutralize with ammonia, and add a solution of calcium chloride. If a precipitate is formed,... 

Butyric acid is a thick, sour liquid, which boils at 162°, and is miscible with water in all proportions. Addition of calcium chloride to an aqueous solution of the acid causes the latter to separate as an oil. The other soluble fatty acids, with the exception of formic and acetic acids, act in this way. The salts of butyric acid are soluble in water. Calcium butyrate, (C4H702)2Ca.H20, is more soluble in cold than in hot water. It is precipitated, in part, when a cold saturated solution of the salt is heated to boiling. The calcium salt of isobutyric acid (C4H702)2Ca.5H20, is more soluble in hot than in cold water. 

One of the limitations to the wider use of calcium chloride in reinforced concrete is that, if present in larger amounts, it promotes corrosion of the reinforcement unless suitable precautions are taken. There is, hence, a continuing attempt to find an alternative to calcium chloride, one equally effective and economical, but without its limitations. A number of organic and inorganic compounds including aluminates, sulfates, formates, thiosulfates, nitrates, silicates, alkali hydroxides, carbonates, halides, nitrites, calcium salts of acetic acid, propionic acid, butyric acid, oxalic acid and lactic acid, urea, glyoxal, triethanolamine, and formaldehyde have been suggested. However, practical experience and research on most of these admixtures is limited. 

Salts of neodecanoic acid have been used in the preparation of supported catalysts, such as silver neodecanoate for the preparation of ethylene oxide catalysts (119), and the nickel soap in the preparation of a hydrogenation catalyst (120). Metal neodecanoates, such as magnesium, lead, calcium, and zinc, are used to improve the adherence of plasticized poly(vinyl butyral) sheet to safety glass in car windshields (121). Platinum complexes using neodecanoic acid have been studied for antitumor activity (122). Neodecanoic acid and its esters are used in cosmetics as emoUients, emulsifiers, and solubilizers (77,123,124). Zinc or copper salts of neoacids are used as preservatives for wood (125). 

It is industrially prepared by the fermentation of sugar or starch, brought about by the addition of putrefying cheese, with calcium carbonate added to neutralize the acids formed in the process. The butyric fermentation of starch is aided by the direct addition of Bacillus subtilis. Salts and esters of the acid are called butanoates. 

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