Definition of perborate in US English:



  • A salt which is an oxidized borate containing a peroxide linkage, especially a sodium salt of this kind used as a bleach.

    ‘one of the common peroxide bleaches, perborate, produces boron when it breaks down’
    count noun ‘it is obtained by action of acids on hydrated barium dioxide or from perborates’
    • ‘Sodium chlorite, hypochlorite, perborate, and peroxide are used to bleach paper, cotton, and rayon.’
    • ‘These solid bleaches contain ingredients like perborate or percarbonate - compounds that react in water to release hydrogen peroxide.’
    • ‘Of the peroxy type bleaches, sodium perborate is the least expensive.’
    • ‘This fabric may yellow so it should be bleached frequently with sodium perborate bleach.’
    • ‘If stains remain after several washings, try bleaching white cottons and linens with chlorine or sodium perborate bleach.’