Activators chlorite bleaching

Activator and Stabilizer for Sodium Chlorite Bleaching POLYRON CB is an additive used in sodium chlorite bleaching in order to activate the process without the addition of acid, to prevent odor nuisance, corrosion, and to increase the whiteness. ... 

Sodium Chlorite bleaching assistant. Activates and stabilizes bleach bath to increase whiteness and reduce odor problems. Contains corrosion inhibitors. 

The refining process most commonly used involves treatment with hot aqueous alkaH to convert free fatty acids to soaps, followed by bleaching, usually with hydrogen peroxide, although sodium chlorite, sodium hypochlorite, and ozone have also been used. Other techniques include distillation, steam stripping, neutralization by alkaH, Hquid thermal diffusion, and the use of active adsorbents, eg, charcoal and bentonite, and solvent fractionation... 

CNC CHLORITE is a white, dry, odorless powder containing 50% active bleaching material. 

Sodium chlorite is an active bleaching agent, used in the manufacture of textile fabrics. 

Sodium chlorite, because of its quick action and ability to bleach cotton which has not been caustic boiled, is well suited for continuous processes. It is used to an increasing extent for bleaching knitted fabrics, and it is claimed that there is substantial economy in the consumption of chlorite, especially in comparison with treatment in a winch. Man-mad fibres require quantities of about 0-15 to 0-2 per cent of sodium chlorite on the weight of the goods. With regard to cotton there appears to be little information, but it is probable that between 1 and 1-5 per cent of sodium chlorite is required. It is also necessary to add an activator to bring the/>H to between 3-5 and 4 either before or during the dwell period in the J box. 

Household bleach contains sodium hypochlorite, so it is an active, decomposing waste constituent. In water treatment plants, the more expensive chlorine dioxide is sometimes used as disinfectant to avoid any impleasant taste of the water. It is unstable, so is usually prepared in situ by reacting sodium chlorite with chlorine or hydrochloric acid. Thus it is of practical importance to also include the analysis of these species in any water analysis. If ozone is used for disinfection, small quantities of other oxohalides can be formed as by-products during water treatment. The presence of the oxohalides in drinking water can be a high risk so their analysis is also recommended. The tolerable oxohalide content in drinking water is at the ppb level. 

The use of acetic acid instead of a strong mineral acid in this method ensures that chlorate ion (ClOr), always present in bleach as a decomposition product of hypochlorite (see Sec. III.C), does not also oxidize iodide and cause interference. A very small amount of chlorite ion (CIOJ) is also always present as an intermediate decomposition product, and this does oxidize iodide under these conditions [5], as well as contributing slightly to the activity of household bleach. 

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