Question

What is the chemical formula of the Borax Bead?

Answer 1

Borax

• Borax is a solid that is amorphous and white in appearance.
• For many years, it has been a cleaning agent.
• It aids with the removal of mold, strains, etc.
• Sodium tetraborate decahydrate is another name for borax.
• The chemical formula is ${\mathrm{Na}}_2{\mathrm{B}}_4{\mathrm{O}}_7·10{\mathrm{H}}_2\mathrm{O}$.

Borax bead

• When the powdered borax, ${\mathrm{Na}}_2{\mathrm{B}}_4{\mathrm{O}}_7·10{\mathrm{H}}_2\mathrm{O}$, is heated up significantly in a Bunsen burner's flame, it transforms into a clear, colorless glassy bead known as a borax bead.
• The reaction is as follows:

$\underset{\left(\mathrm{Borax}\right)}{{\mathrm{Na}}_2{\mathrm{B}}_4{\mathrm{O}}_7·10{\mathrm{H}}_2\mathrm{O}}\to {\mathrm{Na}}_2{\mathrm{B}}_4{\mathrm{O}}_7+10{\mathrm{H}}_2\mathrm{O}\to \underset{(\mathrm{boric}\mathrm{oxide})}{{\mathrm{B}}_2{\mathrm{O}}_3}+\underset{(\mathrm{sodium}\mathrm{metaborate})}{2{\mathrm{NaBO}}_2}$

• It is composed of boric oxide $\left({\mathrm{B}}_2{\mathrm{O}}_3\right)$ and sodium meta borate $\left({\mathrm{NaBO}}_2\right)$.

Uses of Borax bead

• A particular solution's metals can be found using a borax bead.
• It is employed, for inorganic qualitative analysis,.