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Browsing by Author "Saprykova Z."

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Association of dodecylsulfate ions with ethylenediamine dihydrochloride

Amirov R.; Saprykova Z.; Ibragimova Z.; Ulakhovich N. (1996)

The effect of sodium dodecylsulfate (SDS) on the acid-base properties of ethylenediamine (En) is studied at 308 K using potentiometric titration. Reduction of the acid function of EnH2 2+ cation (ΔpKmax ≃ 1.6) is found at ...
Binding of protonated forms of o-phenylenediamine and some other cations with the micelles of sodium dodecyl sulfate according to data from pH measurements

Amirov R.; Saprykova Z. (1996)

Binding of the protonated forms of o-phenylenediamine (oPn) with micelles in aqueous solutions of sodium dodecyl sulfate (SDS) was studied by potentiometric titration. The dependences of the apparent pro-tonization constant ...
Complexation in Surfactant Solutions: I. NMR Relaxation Study of Complexation of a Series of Transition Metals with Chelating Agents in Sodium Alkyl Sulfate Solutions

Amirov R.; Saprykova Z.; Ulakhovich N.; Ibragimova Z. (1998)

The effect of sodium decyl, dodecyl, and tetradecyl sulfates on the composition and stability of Ni(II), Cu(II), Mn(II), Gd(III), and Fe(III) complexes with chelating agents (iminodiacetic, hydroxyethyliminodiacetic, and ...
Complexation in Surfactant Solutions: II. Complexation of Cu(II) and Fe(III) Salicylates in Sodium Alkyl Sulfate Solutions

Amirov R.; Saprykova Z.; Ulakhovich N.; Ibragimova Z. (1998)

The effect of sodium dodecyl sulfate and sodium tetradecyl sulfate on the composition and stability of Cu(II) and Fe(III) complexes with salicylic acid was studied by the NMR relaxation and pH-metric titration methods. For ...
Complexation in surfactant solutions: III. complexation of Ni(II), Cu(II), Gd(III), and Fe(III) in mixed solutions of anionic and nonionic surfactants

Amirov R.; Saprykova Z.; Amirova L. (2000)

Complexation of Ni(II), Cu(II), Gd(III), and Fe(III) with chelating agents [iminodiacetic (H2IDA) and nitrilotriacetic acids (H3NTA)] and salicylic acid (H2Sal) in mixed solutions of anionic [sodium dodecyl (SDS) and ...
Complexation of Cobalt(II) with Thiocyanate Ions in Aqueous Solutions of Nonionogenic Surfactants

Amirov R.; Skvortsova E.; Saprykova Z. (2003)

The formation of tetrahedral cobalt(II) thiocyanate complexes in aqueous solutions of nonionogenic surfactants was studied using electronic spectroscopy. The equilibrium constants were calculated in the framework of different ...
Effect of sodium dodecylsulfate on equilibria of copper complexation

Amirov R.; Saprykova Z.; Ibragimova Z. (1996)

Effect of sodium dodecylsulfate (SDS) on the complexation of copper(II) with iminodiacetic acid (IDA) and ethylene diamine (En) is investigated using pH-metric titration and NMR relaxation together with computer treatment ...
Interaction between nickel(II) and anions of short-chain dialkyl dithiphosphoric acids in aqueous surfactant solutions

Amirov R.; Skvortsova E.; Matyugicheva U.; Nugaeva Z.; Saprykova Z. (2002)

Spectrophotometry was used to study the complexation of nickel(II) with anions L- of diisopropyl and dibutyl dithiophosphoric acids in water and aqueous solutions of nonionic surfactant, Triton X-100 (T). Weak bis-complexes ...
Investigation of the sodium dodecylsulphate (SDS) micellization using paramagnetic relaxation probes

Amirov R.; Saprykova Z. (1994)

Micellization of SDS in aqueous solutions is investigated by the nuclear magnetic relaxation method using Gd3+, Fe3+, Mn2+ ions as paramagnetic probes. Critical concentration of SDS micellization (1.5-2×10-3M) and degree ...
Magnetic Relaxation Probing of the State of Diheptyl Dithiophosphate Ions in Water and Aqueous Triton X-100 Solutions

Amirov R.; Saprykova Z.; Skvortsova E.; Nugaeva Z.; Ulakhovich N. (2001)

The nuclear magnetic relaxation was used to study the state of diheptyl dithiophosphoric acid (D7DTP, L7) anions in water and aqueous solutions of the nonionic surfactant, Ttiton X-100, at 298 K in the presence of paramagnetic ...
ROLE OF HETERONUCLEAR COMPLEXES IN SOLUTIONS FOR METALLIZATION OF PLASTICS.

Saprykova Z.; Sal'nikov Y.; Glebov A.; Zhuravleva N. (1985)

Metallization of plastics by chemical deposition of metals is an important technological process in production of circuit boards. The usual reducing agents are formaldehyde, borohydrides, hydrazine and its derivatives, and ...
Specific features of the complexation of copper(II), manganese(II), and gadolinium(III) with salicylic, benzoic, and sulfosalicylic acids in aqueous solutions of nonionic surfactant

Amirov R.; Saprykova Z.; Ibragimova Z. (1998)

The methods of potentiometric titration and NMR relaxation were used to study the influence of the nonionic surfactant (NS), namely Triton X-100 (TX), on the acid-base and complexing properties of salicylic (H2L), benzoic ...
Specific features of the complexation of copper(II), manganese(II), and gadolinium(III) with salicylic, benzoic, and sulfosalicylic acids in aqueous solutions of nonionic surfactant

Amirov R.; Saprykova Z.; Ibragimova Z. (1998)

The methods of potentiometric titration and NMR relaxation were used to study the influence of the nonionic surfactant (NS), namely Triton X-100 (TX), on the acid-base and complexing properties of salicylic (H2L), benzoic ...
Study on the state of certain protonated amines in sodium dodecylsulfate solutions

Amirov R.; Saprykova Z. (1996)

The effect of sodium dodecylsulfate (SDS) on acid-base properties of ammonia, hydrazine, and o- and p-phenylenediamine (o- and p-Pn) was studied at 308 K with potentiometric titration. The DS- anions were found to form ...
The association of picrate ions with amphiphilic cations in water and aqueous solutions of nonionic surfactant and β-cyclodextrin

Ziyatdinova A.; Mirsaizyanova S.; Saprykova Z.; Amirov R. (2005)

The interaction of cetyltrimethylammonium and cetylpyridinium bromides with picrate ions in water and aqueous solutions of the nonionic surfactant Brij 35 is studied by spectrophotometry. Spectral characteristics of the ...
The formation of complexes of iron(III) with salicylic acid in the presence of cationic and nonionic surfactants

Amirov R.; Saprykova Z.; Ibragimova Z. (1998)

The effect of dodecylpyridinium bromide (DPB) and ethoxylated sorbitan palmitate (Tween 40) on the formation equilibrium of the complex of iron(III) with salicylic acid (H2L) in aqueous solutions was studied at 298 K by ...
The formation of complexes of iron(III) with salicylic acid in the presence of cationic and nonionic surfactants

Amirov R.; Saprykova Z.; Ibragimova Z. (1998)

The effect of dodecylpyridinium bromide (DPB) and ethoxylated sorbitan palmitate (Tween 40) on the formation equilibrium of the complex of iron(III) with salicylic acid (H2L) in aqueous solutions was studied at 298 K by ...
The state of a paramagnetic probe in solutions containing mixed micelles of anionic and nonionic surfactants from data on nuclear magnetic relaxation

Amirov R.; Saprykova Z. (1999)

The state of Mn2+ ions in solutions of binary mixtures of anionic (sodium decyl, dodecyl, and tetradecyl sulfates) and nonionic (Tween 40 and Triton X-100) surfactants at 298 K was studied by the nuclear magnetic relaxation ...

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Browsing by Author "Saprykova Z."

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