Sodium perborate monohydrate|10332-33-9

Sodium perborate monohydrate is a mild oxidizing agent, stable in dry air at room temperature, but liberates oxygen in humid hot air. It is widely used in detergents, toothpaste, fabric bleach and hair products, and is also used in organic synthesis. Under alkaline conditions, sodium perborate monohydrate has the removal rate of lignin or pectin, which is widely used in the treatment process of some cotton and flax fibers or blended products. Compared with simple caustic soda removal, its performance is mild, and it has the effects of oxidation and lignin removal.

Basic Information

English name: Sodium perborate monohydrate

Molecular formula: NaBO3.H2O

Molecular weight: 99.81

CAS number: 10332-33-9

EINECS number: 231-556-4

Dangerous Goods Transport Code: UN 3377 5.1/PG 3

Preparation technology

Sodium perborate monohydrate is prepared by the reaction of borax, H2O2 and NaOH, and the tetrahydrate is obtained by reheating and dehydration, and its active oxygen content is up to 15%, and its solubility and dissolution rate in water are greater, and it is more stable to heat.

Monohydrate sodium perborate is an oxygen-containing bleach, soluble in water to generate H202, can release reactive oxygen species, thus has a strong bleaching effect, can remove the stain on the fabric, improve the whiteness of the detergent, make the white clothing more white, and does not damage the original color of the clothing, make the color of the clothing more bright, while producing a good decontamination effect. Therefore, sodium perborate is a more suitable bleaching agent.

Product Indicators

Appearance: White free flowing granules

Reactive oxygen species≥15.1%

Main content ≥96%

PH: 9.9 ~ 10.9

Fe≤0.0015%

Bulk density, g/L: 500 ~ 640

Wet stability≥82%

Nature of hazard: dangerous goods

Dangerous Goods Transport number: UN3377

Sodium perborate monohydrate reacts with water to hydrolyze to produce H2O2 and sodium borate. H2O2 can release reactive oxygen species, atomic oxygen, with super-strong oxidation properties. The bleaching activity of sodium perborate monohydrate can be fully realized when the temperature is higher than 60℃. So in industrial production, apart from temperature control, what other methods can make it play a better role? According to the data, if EDTA is added when the ambient temperature is below 60℃, it can exert its oxidation bactericidal effect.