8652. Sodium Perborate

Nomenclature

CAS number: 7632-04-4
Dexol.
BNaO3; mol wt 81.80.
B 13.22%, Na 28.10%, O 58.68%.
NaBO3.

Description and references

Contains, when reasonably fresh, ≈95% of the perborate corresp to 9.9% available oxygen. Prepn from sodium metaborate and hydrogen peroxide: Leblon, Lambert, US 3109706 (1963 to Solvay & Cie).

Derivative

Tetrahydrate.

Properties

White, odorless, cryst powder; saline taste. Stable when kept cool and dry, but is dec with liberation of oxygen in warm or moist air. Dec >60°. Sol in ≈40 parts water, the soln being alkaline and dec with the liberation of H2O2, and then of oxygen. In the presence of acids, H2O2 is formed. Keep well closed and in a cool place.

Caution

Prevent swallowing of soln.

Use

Bleaching straw and other fibers, ivory, sponges, bristles, waxes, textiles; in laundering, dentifrices, soaps.

Therapeutic Category

Antiseptic (topical).

Therapeutic Category (Veterinary)

Mouthwash.