Respuesta :

  • First borax loses water
  • Then it forms borax glass

[tex]\\ \rm\rightarrowtail Na_2B_4H_7.10H_2O\overset{\Delta}{\longrightarrow} Na_2B_4H_7+10H_2O[/tex]

  • It's very swelling

[tex]\\ \rm\rightarrowtail Na_2B_4O_7\overset{\Delta}{\longrightarrow} NaBO_2+B_2O_3[/tex]