sulfur bleaching

См. также в других словарях:

• Bleaching of wood pulp — is the chemical processing carried out on various types of wood pulp to decrease the color of the pulp, so that it becomes whiter. The main use of wood pulp is to make paper where whiteness (similar to but not exactly the same as brightness ) is… …   Wikipedia

• sulfur dioxide — n a heavy pungent toxic gas SO2 that is easily condensed to a colorless liquid, is used esp. in making sulfuric acid, in bleaching, as a preservative, and as a refrigerant, and is a major air pollutant esp. in industrial areas * * * [NF] a… …   Medical dictionary

• Sulfur — This article is about the chemical element. For other uses, see Sulfur (disambiguation). phosphorus ← sulfur → chlorine …   Wikipedia

• sulfur — /sul feuhr/, n. 1. Also, esp. Brit., sulphur. Chem. a nonmetallic element that exists in several forms, the ordinary one being a yellow rhombic crystalline solid, and that burns with a blue flame and a suffocating odor: used esp. in making… …   Universalium

• sulfur dioxide — Chem. a colorless, nonflammable, water soluble, suffocating gas, SO2, formed when sulfur burns: used chiefly in the manufacture of chemicals such as sulfuric acid, in preserving fruits and vegetables, and in bleaching, disinfecting, and… …   Universalium

• sulfur dioxide — sul′fur diox′ide n. chem. a colorless, nonflammable, water soluble, suffocating gas, SO2, formed when sulfur burns: used chiefly in the manufacture of chemicals such as sulfuric acid, in preserving fruits and vegetables, and in bleaching,… …   From formal English to slang

• sulfur dioxide — noun Date: 1869 a heavy pungent toxic gas SO2 that is easily condensed to a colorless liquid, is used especially in making sulfuric acid, in bleaching, as a preservative, and as a refrigerant, and is a major air pollutant especially in industrial …   New Collegiate Dictionary

• environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …   Universalium

• chemical industry — Introduction       complex of processes, operations, and organizations engaged in the manufacture of chemicals and their derivatives.       Although the chemical industry may be described simply as the industry that uses chemistry and… …   Universalium

• Kraft process — The Kraft process (also known as Kraft pulping or sulfate process) describes a technology for conversion of wood into wood pulp consisting of almost pure cellulose fibers. The process entails treatment of wood chips with a mixture of sodium… …   Wikipedia

• Paper pollution — The production, use and recycling of paper has a number of adverse effects on the environment which are known collectively as paper pollution. Pulp mills contribute to air, water and land pollution. Discarded paper is a major component of many… …   Wikipedia