Borax Pentahydrate - Argentina

Brief Overview
The most often used type of sodium borate in a range of industries is borax pentahydrate, also known as Etibor 48 or sodium tetraborate pentahydrate. It is a crystalline granule or powder that is white, odorless, and mildly alkaline in solution as well as on its own.Etibor 48 is less hygroscopic, has a lower bound water ratio, and contains more boron per unit mass than borax decahyrdate, which is physiochemically equivalent.
Manufacturing Process
Sodium tetraborate pentahydrate of high purity is made by:
(a) When sodium carbonate and the mineral Colemanite combine in an aqueous solution, sodium hydroxide and sodium tetraborate are produced, and solid calcium carbonate precipitates;
(b) Adding boric acid to the aqueous solution from stage (a) after the precipitated calcium carbonate has been separated will neutralize the sodium hydroxide and create more sodium tetraborate;
(c) The sodium tetraborate pentahydrate is extracted from the aqueous solution produced in stage (b) by crystallization.