Question

physical and chemichal properties of borax with theri uses​

Answer 1

Borax, also known as sodium tetraborate or sodium borate, is a mineral and inorganic salt largely used as ingredients in laundry and cleaning products.

Physical properties: Borax is a white crystalline powder. Its melting and boiling points are 75 ºC and 320 ºC, respectively. Borax density is 1.73 g mL-1. It is highly soluble in water.

Chemical properties: Borax in water form alkaline solutions. In acid solution, borax reacts to produce other borates such as sodium perborate (PBS), a compound very used in chemical industry. It can also form boric acid:

Na2B4O7·10H2O + 2 HCl → 4 H3BO3 + 2 Na+ + 2 Cl- + 5 H2O