Borax Anhydrous (Technical Grade) - Argentina

Brief Overview Borax anhydrous is an inorganic compound that has a white, fine crystal or powder appearace. Borax hydrates occur naturally in evaporite deposits produced by the repeated evaporation of seasonal lakes. Naturally occurring borax is refined by a process of recrystallization, but it can be produced synthetically from other boron compounds. The term borax is often used for a number of closely related minerals or chemical compounds that differ in their crystal water content. This is why there are also compounds namely: borax decahydrate, borax octahydrate, and borax pentahydrate. Manufacturing Process Anhydrous borax is made by fusing hydrated borax into a glass and regrinding it. It thus contains little or no water at all. The powder will not rehydrate under normal dry storage conditions. It is slightly water soluble, but considerably less so than raw borax. This material does not puff or swell during melting, minimizing loss of powder in kilns with strong drafts, and melts easier. The swelling in other forms can create a porous state with an insulation factor that slows melting.