Production and characterization of chloride containing magnesium borate, using boric acid with solid state synthesis

Magnesium borate minerals, which occur in various forms over the world, are used as cleaning agents and industrial raw materials. Due to their stronger thermal and mechanical properties, they can be used in industry as raw materials. Production of pure boron is hard and expensive process. Because of the high boron content, magnesium borate minerals are to meet the needs of raw materials in world market.Boracite (Mg3B7O13Cl), which is called magnesium borate chloride mineral, used as the source for obtaining synthetic boracite with ferro electric and ferromagnetic properties. In addition a very high percentage of %62,2 possesion of B2O3 structure of the mineral increased the importance of boracite. Boracite which has reserves in Central Europa, Russia, Bolivia and China, consist of natural sea water and gypsum precipitation. Formed boracite mineral hardness is about 7 to 7,5 mohs. It is usually found in crystaline form. Boracite mineral is low and high temperatures the result in 2 phases. These phases occur at lower temperatures higher than the phase ferroelectric property. Unless it runs at very high temperatures are preferred because it is more thermally stable. In addition, three basic methods are available for artificial obtained in magnesium borate. These are hydrothermal, thermal and microwave methods. Except boracite, there is hydrate magnesium crate chloride mineral which is called shabinite (Mg5(BO3)Cl2(OH)5-4(H2O). However, it is not preferred because of its crystal water in its structure.In this study, it is aimed to synthesize of magnesium borate chloride with thermal method. Magnesium chloride, magnesium oxide and boric acid are the raw materialsAccording to the results of XRD, FT-IR and Raman Spectroscopy analysis, the highest score of boacite is seen at the code of reaction conditions in MC-MO-H-800oC-240min. In a similar way, same reaction repeated at the mole ratio of magnesium chloride raised to 2 times. Compatible results are obtained. XRD results show that boracite mineral with the reference code ?01-071-750? is synthesized. According to the SEM surface photos of optimized products, synthesized minerals are found in nano scale. At the end, calculated reaction efficiency is higher than 80 percentage.