Sodium Chlorate

Sodium Chlorate

In 2007, our Sodium Chlorate (NaClO3) was ranked No.1 in China in terms of both sales volume and sales revenue. It is recommended by our clients to have “high purity, large scale, good credibility and reliable supply”. With Our clientele spans across the world – from China and India to South Korea and Singapore. In China, our product established an impressive 90% market share in the pulp paper industry.

Sodium chlorate (NaClO3) is a white, hygroscopic crystalline powder that is readily soluble in water. It decomposes above 250 °C to release oxygen and leave sodium chloride. Industrially, sodium chlorate is synthesized from the electrolysis of a hot sodium chloride solution in a mixed electrode tank:

NaCl + 3H2O → NaClO3 + 3H2

It can also be synthesized by passing chlorine gas to a hot sodium hydroxide solution and then purified by crystallization.


I. Pulp Bleaching


Sodium chlorate is largely used by the pulp & paper industry to produce chlorine dioxide, which is used to bleach wood pulp for the manufacture of higher quality and environmentally friendly white paper products. Pulp mills convert sodium chlorate into chlorine dioxide – an environmentally friendly bleaching agent. The process of using chlorine dioxide to bleach pulp is referred to as “ECF” bleaching meaning “elemental chlorine free”.

Up to 95%of all sodium chlorate produced worldwide goes into the pulp and paper industry. With growing environmental concerns, sodium chlorate, as a key ingredient for making chlorine dioxide, is in even greater demand by the industry.

II. Water Treatment

watertreatment_combinedSodium Chlorate can also be used in water treatment. Pulp and paper mills also pollute water, which must be cleaned before it is released into the environment. The composition of paper production pollutants in waste water depends on the paper produced as well as on fillers and chemicals used. Through chemical traction chlorine dioxide is generated for waste water disinfection and treatment.


III. Other Applications

Sodium chlorate is used for making potassium hyper-chlorate, which is the indispensable chemical agent for manufacturing fireworks, firecrackers, safety matches, photography pharmaceutical and analytical reagent. Because of its strong oxidizing property, sodium chlorate can also be used as herbicide in agriculture, mordant in cloth dyeing industry, medicinal zinc oxide and sodium disulfide butyrate in pharmaceutical industry, tanning, oxidizer, rocket missile propellant, explosives, ore processing and seawater bromine extraction, etc.

Please contact us for more enquiries.