Ionic mobilities in non-aqueous solvents

Ulich, H.

doi:10.1039/tf9272300388

Cited by 33 publications

(16 citation statements)

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“…The data indicate that in all solvents the solvation of the alkali metals is in the order Li + > Na + > K + > Rb + > Cs + , except in acetone where the solvation numbers of Li + , Na + , and K + are about the same, at least as presented by Ulich [104]. The variation of solvation number for a given ion with solvent is evident.…”

Section: Significancementioning

confidence: 50%

“…Earlier, Ulich [104] made a calculation of solvation numbers of ions from Stokes's law radii calculated from conductance and the radius proper of the ions in a manner similar to that illustrated by Hittorf [1,2].…”

Section: Theorymentioning

confidence: 99%

“…In Table 3.4 solvation numbers of ions occurring in the literature [97,[102][103][104] are presented. The solvents and temperatures are specified.…”

Section: Solvation Numbers Determinedmentioning

confidence: 99%

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Solvation of Ions

Amis

Hinton

1973

Solvent Effects on Chemical Phenomena

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Section: Significancementioning

confidence: 50%

Section: Theorymentioning

confidence: 99%

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Solvation of Ions

Amis

Hinton

1973

Solvent Effects on Chemical Phenomena

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“…K + has mobilities 74*8 in water and 24*6 in alcohol; for Cl" the numbers are 76*3 and 21 *4 respectively, for N H^ 74*3 and 22 and for NO^T 71 and 26. The above numbers for alcohol were taken from a paper by Ulich (1927); no figures for acetate in alcohol could be found. The numbers for alcohol refer to pure alcohol; for 90% alcohol the values will be somewhat higher.…”

Section: Methodsmentioning

confidence: 99%

Electrometric titration of amino-acids in aqueous-alcoholic solution

1934

Proc. R. Soc. Lond. B.

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The conception that substances exist which carry both positive and negative charges in the same molecule was first advanced by Bredig (1894) and Kiister (1897) in connection with betaine and methyl orange respectively. Kiister designated such substances zwitterions; since, however, these particular compounds fail to exhibit the essential ionic property of migration in an electric field they should rather be called zwittermolecules.Later Bredig (1899) extended the conception to the aliphatic amino-acids, and the theory was again taken up in an interesting paper by Adams (1916); the most convincing arguments in its favour were, however, supplied by Bjerrum (1923). In the meantime the results of many investigations had afforded additional support for the hypothesis ; the more essential of these have been discussed by Richardson (p. 121) and may be summarized as follows.(1) The zwitterion theory explains the positions occupied by the dissociation constants of the amino-acids in relation to those of the corresponding aliphatic acids, amines and esters (Adams, 1916 ; Bjerrum, 1923 ;Ebert, 1925 ; Emer son and Kirk, 1930); no such reasonable explanation is available on the older theory.on May 10, 2018 http://rspb.royalsocietypublishing.org/ Downloaded from

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“…In the form er grouping may be included such phenomena as polarography [2 , 3], UV-visible spectrophotometry [4], mobility [5], and activity [6] m easurements, while the second grouping includes isotope dilution [7], compressibilities [8,9], and nuclear magnetic resonance [10].…”

Section: Hydration Number Conceptmentioning

confidence: 99%

Near infrared spectrophotometric method for the determination of hydration numbers

Durst¹,

Taylor²

1964

J. RES. NATL. BUR. STAN. SECT. A.

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The 980 mil absarptian band of water is cmplaycd in a new methad far the determinatian of hydratian numbers. '1'110 decrease in the concentration af "free" water is calculated fram thc change in absorbance r es ulting on the aclditian af an clectrolyte. Data arc given for ChrOl11l C chlonde and nltrate sa.lts in watcr-methanal salutians, ancl an cxtrapolatian is made to gIve the hydratIOn number In pure water. The results abtained by this technique agree WIth the values re parted uSing ather mcthads.

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Ionic mobilities in non-aqueous solvents

Cited by 33 publications

References 0 publications

Solvation of Ions

Solvation of Ions

Electrometric titration of amino-acids in aqueous-alcoholic solution

Near infrared spectrophotometric method for the determination of hydration numbers

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