Sodium chlorate used as a bleaching agent and stain remover in the paper industry

Name：Sodium Chlorate

CAS：7775-09-9

EINECS：231-887-4

Molecular Formula：NaClO3

Molar Mass：106.441

Melting Point：248-261℃

Water Solubility：1000 g/L (20℃)

Physical and Chemical Properties：Characteristics of colorless or white cubic crystal system. The taste was salty and cool.
melting point 255 ℃
relative density 2.490
solubility soluble in water, soluble in ethanol, liquid ammonia, glycerol.

Sodium chlorate is mainly used as a bleaching agent and stain remover in the paper industry.

1. Bleaching agent: Sodium chlorate is a strong oxidizing agent, which can remove organic pollutants and pigments in pulp and improve the whiteness of paper. It can effectively bleach wood pulp, paper pulp and waste paper. Compared with other bleaching agents, sodium chlorate has higher bleaching effect and lower by-product formation, which can produce whiter paper.

2. Stain remover: Sodium chlorate can remove stains and pigments from the paper surface, making the paper cleaner. It converts impurities and pigments into soluble substances, improving the quality and appearance of the paper.

In addition, sodium chlorate can also be used in the pretreatment of pulp to improve the handleability and performance of paper. It can adjust the pH value of pulp, remove the influence of metal ions, and improve the dewatering performance of pulp. These all help to improve the quality and production efficiency of paper.