Evaluation of Intrinsic Ionization and Complexation Constants of TiO₂ and Mg‐Fe Hydrotalcite‐like Compounds

Abstract

The intrinsic surface reaction constants, int a1 K * →∞ were obtained by MDE, which means the inert electrolyte chemical binding does not exist; the point of zero net charge (PZNC) of c-independence also exist as the same as solid without structural charge, and the pH PZNC obtained by the acid-base titration can excellently be simulated and the surface charging tendency can be simulated to a great extent using the int a1 pK and int a2 pK evaluated by MDE and the diffuse layer model (DLM).

Influence of Mg2+Contents on the Thixotropy of HTlc/MT Suspensions

“…They are composed of positively charged brucite-like [Mg(OH) 2 ] layers with trivalent cations substituting for divalent cations at the centres of octahedral sites, and each OH-group is shared by three octahedral cations and points towards the interlayer regions. [2][3][4] The excess positive charges of HTlcs are compensated by interlamellar anions. [3][4][5][6][7][8][9] [2] HTlc compounds have a lot of special properties, such as bearing positive charges, novel thixotropic properties and so on.…”

“…[2][3][4] The excess positive charges of HTlcs are compensated by interlamellar anions. [3][4][5][6][7][8][9] [2] HTlc compounds have a lot of special properties, such as bearing positive charges, novel thixotropic properties and so on. The fields of real and potential industrial application of HTlc range widely from oil fields to agriculture.…”

Influence of Montmorillonite's Concentration on the Thixotropy of Hydrotalcite‐like Compounds/Montmorillonite Suspensions

“…2 In general, MT suspensions show shear-thinning, thixotropy and exhibit a yield stress when clay concentration is above a certain value. 3 Hydrotalcite-like compounds (HTlc) belong to a large class of anionic and basic clays, and they are also known as layered double hydroxides. They are composed of positively charged brucite-like layers, with trivalent cations substituting for divalent cations at the centre of octahedral sites, and each OH group is shared by three octahedral cations and points towards the interlayer regions.…”

“…They are composed of positively charged brucite-like layers, with trivalent cations substituting for divalent cations at the centre of octahedral sites, and each OH group is shared by three octahedral cations and points towards the interlayer regions. 3,4 The excess positive charges of HTlc are compensated by interlamellar anions, [3][4][5][6][7][8][9] and they can be represented by the general formula of…”