Potassium inactive form

The latest contribution to the chemistry of this abstruse subject is contained in papers by Komppa and Eoschier, and by Eoschier. They have obtained a fenchene l>y treating methyl-/3-fenchocamphorol with potassium bisulphate, which is the inactive form of )8-fenchene, mixed with a small amount of a terpene they term y-fenchene. /3-fenchene (identical with D-(f-fenchene of Wallach), and y-fenchene have the following constitutions —... 

The potassium silanolate exists largely as the associated species 2, which is considered unreactive. The molecular weight distribution inevitably shows a low-molecular-weight tail when these catalysts are used and is attributed to the fraction of the chain ends in the inactive form 2 (37). 

Tartaric acid [526-83-0] (2,3-dihydroxybutanedioic acid, 2,3-dihydroxysuccinic acid), C H O, is a dihydroxy dicarboxyhc acid with two chiral centers. It exists as the dextro- and levorotatory acid the meso form (which is inactive owing to internal compensation), and the racemic mixture (which is commonly known as racemic acid). The commercial product in the United States is the natural, dextrorotatory form, (R-R, R )-tartaric acid (L(+)-tartaric acid) [87-69-4]. This enantiomer occurs in grapes as its acid potassium salt (cream of tartar). In the fermentation of wine (qv), this salt forms deposits in the vats free crystallized tartaric acid was first obtained from such fermentation residues by Scheele in 1769. 

The course of this reaction was proved by Hilt et al.42> 54 > who used as copolymerization initiators 14C-labelled sodium and potassium benzoate. The activity of the prepared copolymer is due to the labelled and chemically bound initiator anion. This reaction is analogous to the analytic determination of epoxides by hydrogen halides 59 but instead of inactive halogen hydrine generaled according to Eq. (12), an ionic particle capable of initiating copolymerization is formed. 

As might be suspected when considering the phase compositions of the prepared samples as determined by XRD, addition of potassium compounds does not yield any improvement. Potassium is not able to keep the iron phase from reacting with the titania by offering the possibility of formation of the potassium ferrite KFe02, but is capable of forming a titanate itself. Moreover, when both iron and potassium are present, another, more stable but inactive phase is obtained. 

Detection of traces of nickel in cobalt salts. The solution containing the cobalt and nickel is treated with excess concentrated potassium cyanide solution, followed by 30 per cent hydrogen peroxide whereby the complex cyanides [Co(CN)6]3- and [Ni(CN)4]4 respectively are formed. Upon adding 40 per cent formaldehyde solution the hexacyanocobaltate(III) is unaffected (and hence remains inactive to dimethylglyoxime) whereas the tetracyanato-nickelate(II) decomposes with the formation of nickel cyanide, which reacts immediately with the dimethylglyoxime. 

Fatty acids react with alkaline catalysts to form catalytically inactive soaps (3). The chemical reaction consumes one mole of fatty acid per mole of alkaline catalyst. Although fatty acid composition of the starting material varies, the content determined by titration reflects the amount of catalyst that would be consumed in a chemical reaction. By calculation, it may be determined that one gram of fatty acid (expressed as oleic acid) will react with about 0.2 g of anhydrous potassium hydroxide or 0.14g of anhydrous sodium hydroxide. Often, additional catalyst must be added to esterify a vegetable oil containing higher levels of fatty acids (3). Conversely, acid catalysts are not inactivated by fatty acids (3). In a unique reaction, fatty acids produced during biodiesel manufacture are actually used as a catalyst in their own esterification (see below). 

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