Magnesium borate minerals, which are a subclass of boron minerals, are inorganic compounds containing magnesium and boron.
In this study, the low temperature (0-70[degrees]C) synthesis of a specific kind of magnesium borate mineral, namely, mcallisterite, is aimed.
Products of the synthesis were determined to be mcallisterite [[Mg.sub.2]([B.sub.6][O.sub.7][[(OH).sub.6]).sub.2] x 9[H.sub.2]O] (pdf 01-070-1902), admontite [MgO([B.sub.2][O.sub.3])3 x 7[H.sub.2]O] (pdf 01-076-0540), and magnesium borate hydrate [Mg[B.sub.6][O.sub.7][(OH).sub.6] x 3([H.sub.2]O)] (pdf 01-073-0638).
The aim of the article can be divided into two parts, where in part one high crystalline dehydrated magnesium borate synthesis via solid-state method was studied.
The neutron transmission values and total macroscopic cross-sections of the dehydrated magnesium borate minerals synthesized by solidstate method using the MgO and [B.sub.2][O.sub.3] with 1000[degrees]C reaction temperature, 240 minutes of reaction time and 1 : 1 and 3 : 2 mole ratios were shown in Table 5.
Tang, "Synthesis of magnesium borate nanorods," Materials Letters, vol.
Single-crystalline magnesium borate [Mg.sub.2][B.sub.2.sub.O5] nanorods have been synthesised via a simple route based on the calcinations of mixed powders containing Mg[(OH).sub.2] and [H.sub.3]B[O.sub.3] at 900[degrees]C in 3h.
A new magnesium borate, [beta]-2MgO x 3[B.sub.2][O.sub.3] x 17[H.sub.2]O, has been synthesised using the method of phase transformation of a double salt and characterised using XRD, IR, and Raman spectroscopy as well as TG.
The surface morphologies of the synthesised magnesium borate minerals and their particle size analyses were performed using a CamScan Apollo 300 Field-Emission SEM at 20 kV.
Barrier Dynamics LLC has obtained a patent for a method for preparing an intumescent composition comprised of mixing a finely ground borate compound selected from the group consisting of borax, calcium borate, magnesium borate
and zinc borate, with a first sodium silicate solution; spreading the mixture in a thin layer; drying the mixture to a constant weight; pulverizing the mixture into particles; and adding the pulverized particles to a second sodium silicate solution.
The production methods of magnesium borate minerals can be divided into two by hydrothermal and thermal methods .
The specific type of magnesium borate mineral, namely, admontite, was synthesized from MgO and [H.sub.3]B[O.sub.3] at 100[degrees]C for the reaction times of 120 and 240 minutes by Derun et al.