borax, hydrated sodium borate, hydrated borate of sodium, borax decahydrate, sodium tetraborate decahydrate
kõvajoodisjootmisel räbustina kasutatav booriühend Na2B4O7·10H2O (naatriumtetraboraat), Na2B4O7.10H2O - a refined borate employed as a powerful flux and as a glass-forming agent in glass, glazes, porcelain-enamels etc.