Propionic acid potassium salt

Synonyms E283 propanoic acid, potassium salt propionic acid, potassium salt. 

It is well known that spatially-hindered phenols have antioxidant properties [3, 4]. Therefore, the test subjects used were preparations that are spatially-hindered phenols potassium phenosan (2,6-ditert-butyl-4-hy-droxyphenyl-propionic acid potassium salt) and anphen sodium (1-N-(acetylamido) -1 - (3,5-di-tert-butyl-4-hydroxybenzyl)-methyl-malonate). 

CfiH,jC102S 64805-64-7) see Captopril ethancthioic acid potassium salt (C2H,KOS 10387-40-3) see Biotin 9,10-ethanoanthracene-9(10//)-propionic acid (C,91I1802 6812-49-3) see Maprotiline... 

Electrolysis of salts of fatty acids gives free radicals which are capable of reacting with added substrates. For instance, when water-free potassium acetate is electrolyzed in the presence of polymerizing substances (e.g., styrene) methyl groups are incorporated as end groups into the polymer. Goldschmidt et ai. analyzed the products formed in the electrolysis of potassium propionate in propionic acid and showed that they could be accounted for by the following reaction sequence ... 

Alkazid A development of the Alkacid proces. The absorbent is an aqueous solution of the potassium salt of either methylamino propionic acid ( Alkazid M ), or dimethylamino acetic acid ( Alkazid DIK ). Developed by Davy Powergas, Germany. Over 80 plants were operating in 1975. 

Because of the difficulty encountered in acetylation of the complexed alcohol, it was of interest to see if the ester complex behaves in a normal fashion. Refluxing (HaO) [Cr(AcO-A)2] in methanol or ethanol caused methyl or ethyl acetate to be formed, while refluxing in ethyl propionate formed ethyl acetate. When the potassium salt was used in place of the oxonium salt no transesterification was observed this could be due to the necessity of acid catalysis or a difference in solubility in these essentially heterogeneous systems. The oxonium salt, (H30) [Cr(AcO-A)2], appears to have typical ester reactivity. 

Pasteurized blended cheese =S43 >41 Cheese cream, anhydrous milk fat, dehydrated cream (in quantities such that the fat derived from them is less than 5% (w/w) in finished product) water salt food-grade colours, spices and flavours mould inhibitors (sorbic acid, potassium/sodium sorbate, and/or sodium/calcium propionates), at levels sgO.2% (w/w) finished product... 

The method of von Miller/3 electrolyzing potassium ethyl--malonate with potassium salts 0 aliphatic carboxylic acids, also gives satisfactory results. If potassium acetate is chosen as the second component of the electrolytic mixture, propionic ethyl ester is formed and likewise by using potassium propionate or potassium butyrate we obtain butyric ethyl ester or valeric ethyl ester respectively. 

Although this is the classical method of anhydride formation it has been replaced to a large extent by the acylation of free carboxylic acids (method 341). The conditions employed and the solvents used in this reaction vary widely. Excellent directions are given for the preparations of nicotinic anhydride (89%) and acetic propionic anhydride (60%) from the respective potassium and sodium salts of the carboxylic acids. Silver salts of acids have also been used. The reaction has been extended to the preparation of mixed anhydrides of short- and long-chain fatty acidsbut has failed in the preparation of mixed anhydrides of substituted benzoic acids. ... 

Figure 1. CL time profiles upon injection ("on") of two forms of the same antioxidant (T.OxlO" M) into the probe solution [50 % cumene in PhCl in the presence of AIBN as an initiator initiation rate was 1.0x10 Ms at 333 K]. Curve 1 displays the response to the injection of Y-(4-hydroxy-3,5-di-r-butyl-phenol) propionic acid taken from its organic-phase (PhCl) stock solution, while curve 2 refers to the effect of the potassium salt of this acid taken from its aqueous solution.

Heating a 3-(2-hydroxyphenyl)propionate ester in diphenyl ether with palladium-charcoal induces a combined cyclization and dehydrogenation [3437], Simultaneous de-O-benzylation and cyclization of a 2-(benzyloxy)acrylic acid by heating with acetyl chloride containing phenyltrimethylammonium iodide gives good yields of a fused pyran-2-one [3836]. In contrast, an o-methoxy-benzylidenemalonic acid (as its potassium salt) cyclizes in the cold when treated with trifluoroacetic acid-trifluoroacetic anhydride [3938]. 

When the ester is hydrolyzed by boiling with alcoholic potassium hydroxide, the salts of two acids, which in this case are acetic acid and propionic acid, are formed. This is known as the acid hydrolysis —... 

Ammonium potassium hydrogen phosphate Hazardous Decomp. Prods. Heated to decomp., emits acrid smoke and irritating fumes Uses Stabilizer migrating from food pkg. in food-pkg. adhesives Regulatory FDA 21CFR 175.105, 181.29 Ammonium propionate CAS 17496-08-1 El NECS/ELINCS 241-503-7 Synonyms Propanoic acid, ammonium salt... 

Definition Potassium salt of propionic acid Empirical C3H5O2 K Formula CH3CH2COOK Properties M.w. 112.16 Uses Preservative in foods, cosmetics in closure-seaiing gaskets for food containers Regulatory FDA 21CFR 177.1210 Australia approved food additive... 

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