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Natural anions

The standard NF T 65-011 distinguishes the bitumen emulsions by their ionic nature (anionic or cationic), their stability with respect to agglomerates and weight content of base binder. There are 20 grades of emulsions. [Pg.288]

The results presented in this review concern this metal-catalyzed mechanism. Depending on the nature, anionic or neutral, of the different nucleophiles, the result of the arylation can be a neutral substitution product or a cationic one, which most often, in the last case, undergoes an evolution, for example (starting form a phosphite) to a phosphonate or, after deprotonation, to an arylamine or to an arylether (Fig. 2). [Pg.242]

Some approach to tailor a new natural anion exchanger from ODA-modified clinoptilolite was studied. We verified repeatedly clinoptilolite enhanced oxyanion uptake mechanism after regeneration and so far confirmed the feasibility at laboratory level. To set this process for water treatment in recycling operation, a pilot plant research is necessary to accomplish. In contrast to clay s properties, which surface have been usually... [Pg.24]

The model of the averaged radii of cations in relation to the degree of reduction is applied, which results in areas of stability for the differently natured anions of group 15, similar to the observations for the group 14 element anions. [Pg.45]

Anionic starches are obtained by reaction with phosphoric acid and alkali metal phosphates or by derivatization with carboxymethyl groups.30,31 This modification is primarily used to introduce amphoteric properties into cationic com starch for application on the wet end of the paper machine. Anionic starches with carboxymethyl substitution are used as thickeners in coating colors or as binders in coatings for specialty paper grades. Oxidized starches are inherently anionic but without thickening action. Potato starch already carries sufficient natural anionic charge to provide amphoteric properties after cationization.32... [Pg.664]

The toxicity of chromium is dependent on the oxidation state of the chromium atom, with chromium(VI) being significantly more toxic than chromium(III). One of the factors believed to contribute to this increased toxicity is the greater ability of chromium(VI) to enter cells, compared to chromium(III). Chromium(VI) exists as the tetrahedral chromate anion at physiological pH, and resembles the forms of other natural anions, such as sulfate and phosphate, which are permeable across nonselective membrane channels. Chromium(III), however, forms octahedral complexes and cannot easily enter through these channels. Therefore, the lower toxicity to chromium(III) may be due in part to lack of penetration through cell membranes. It follows that extracellular reduction of chromium(VI) to chromium(III) may result in a decreased penetration of chromium into cells, and therefore, a decreased toxicity. [Pg.199]

When water contains a mixture on the same natural anions, a retard effect on photocatalytic disinfection was observed. As expected, the time required for complete bacterial inactivation change as a function of the concentration of anion in the mixture (Rincon and Pulgarin 2007b). However, E. coli inactivation rate is accelerated in some experiments carried out using natural waters, filtered and spiked with... [Pg.450]

E. coli, when compared to that of bacteria suspended in MQW. This type of water probably contains, in addition of natural anions, chemical photosensitizers (organic or inorganic) which increase the detrimental action of light on bacteria. [Pg.451]

Physical form tan, free-flowing Ionic nature anionic pH (typical) 10% sol. pH 7-8 Solubility readily soluble in water... [Pg.109]

Chemical nature Anionic alkyl benzene sulfonate derivative... [Pg.114]

Chemical nature aromatic solvent in a surfactant system Physical form liquid solvent Ionic nature anionic/nonionic Color off-white to yellow... [Pg.121]

Appearance Amber liquid Solubility Excellent pH - 5% solution 7.5 Chemical nature Anionic Surfactant... [Pg.136]

Appearance Semi-viscous liquid Ionic nature Anionic Chemical nature Resinous polymer Solubility In water in all proportions... [Pg.139]

Appearance Light brown liquid Density 9.5 lbs. per gallon Chemical nature Anionic... [Pg.142]

Chemical nature anionic carboxylated styrene butadiene latex... [Pg.143]

Chemical nature Anionic fatty acid amine condensate Appearance Light amber viscous liquid pH-1% solution 9.5-10... [Pg.145]

Appearance Amber liquid Ionic Nature Anionic Chemical Nature Bromlnated compound pH 7.0... [Pg.151]

Ionic nature anionic Appearance amber liquid... [Pg.214]

Physical Appearance Liquid Color Light Yellow Percent Active Agent 35 Specific Gravity 1.15-1.20 Ionic Nature Anionic pH 6-8... [Pg.231]

Consistency Liquid Color Dark Brown pH 9.0-10.0 Solubility Infinite Ionic Nature Anionic... [Pg.407]

Consistency Liquid Color Light yellow Solubility Disperses in water Ionic Nature Anionic Activity 27% pH 7.0-7.5... [Pg.419]

Ionic Nature anionic Borax Stability stable... [Pg.437]


See other pages where Natural anions is mentioned: [Pg.451]    [Pg.45]    [Pg.37]    [Pg.305]    [Pg.261]    [Pg.261]    [Pg.44]    [Pg.318]    [Pg.305]    [Pg.448]    [Pg.194]    [Pg.112]    [Pg.113]    [Pg.123]    [Pg.139]    [Pg.168]    [Pg.169]    [Pg.215]    [Pg.225]    [Pg.240]    [Pg.419]    [Pg.430]    [Pg.434]    [Pg.460]   
See also in sourсe #XX -- [ Pg.151 , Pg.448 ]




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