What is the Sodium per borate ,give the structure and its uses?

Sodium per borate (NaBO₃.H₂O) (more correctly sodium dioxoborate peroxohydrate) is prepared from borax by treatment with NaOH to convert it to sodium borate (NaBO₂) and further reaction with hydrogen peroxide.

Structure of sodium per borate:

The elementary structure of sodium per borate is a dianion B₂O₄(OH)₄^2- in which two boron atoms are joined by two peroxy linkage(–B–O–O–B–O–O– )  in a chair-shaped 6-membered cyclic structure with two hydroxy groups attached to each boron atom and the ring adopts a chair conformation and the simplistic formula of sodium per borate is NaBO₃·nH₂O.

Uses:

Sodium borate is source of active oxygen used in teeth whiteners and bleaches and is also a disinfectant. It is also important additive to washing powders.