bleaching paper

Chlorine dioxide is also used in bleaching paper and purifying water.

Several hundred million tons are produced annually, mainly for applications in bleaching paper.

Health Effect Is Uncertain Dioxin, a long-lived byproduct of bleaching paper pulp, has been described as one of the most toxic substances known to man.

It produced sodium hydroxide and chlorine that were used in large amounts for bleaching paper during production by the nearby Dryden Pulp and Paper Company.

The Baykalsk Pulp and Paper Mill was constructed in 1966, directly on the shoreline, bleaching paper with chlorine and discharging waste into Baikal.

The chlorine was used for bleaching paper (hence the location of many of these plants near paper mills) while the sodium was used to make sodium hydroxide for soaps and other cleaning products.

They are manufactured on a small scale for chemical and toxicological research, but mostly exist as by-products of industrial processes such as bleaching paper pulp, pesticide manufacture, and combustion processes such as waste incineration.

Stewart E. Holm, the manager of science policy for the Georgia-Pacific Corporation, which produces dioxin as a byproduct of bleaching paper, responded that the panel appeared to find that dioxin was "not as dangerous as commonly thought."

The First Nation experienced mercury poisoning from Dryden Chemical Company, a chloralkali process plant, located in Dryden, Ontario that supplied both sodium hydroxide and chlorine used in large amounts for bleaching paper during production for the Dryden Pulp and Paper Company.

The electrochemical innovations of T.L. WILLSON (calcium carbide production patent, 1893) and A.E. LeSueur (chlorine production for bleaching paper pulp, 1888) received worldwide application and provided the impetus for Canadian hydroelectric development and the pulp and paper industries.

Dryden Chemicals Ltd, which was a subsidiary of the British multinational, Reed International company, used mercury cells in sodium chloride electrolysis to make caustic soda and chlorine for bleaching paper, and they dumped their 10 tonnes of mercury into the English-Wabigoon River between 1962 and 1970.