Sodium hydroxide (NaOH),
commonly known as the caustic soda, caustic soda, KeXingNa, for
another name caustic soda and in Hong Kong and called elder
brother, under normal temperature is a white crystal, has the
strong corrosive. Soluble in water, its water solution is
strongly alkaline, can make phenolphthalein red.
use
Widely applied to the sewage agents, basic analysis reagent
preparation, analysis with standard lye, a small amount of
carbon dioxide and water absorption agent, acid and sodium salt
manufacturing. The manufacture of other containing hydroxyl
ions reagents; In papermaking, printing, dyeing, wastewater
treatment, electroplating, chemical engineering drilling were
important USES; Domestic brands are: day we brand, brand, gold
of exploitation of CARDS.
The use of sodium hydroxide is very extensive, in chemistry
experiment, in addition to the used as outside reagents,
because it has the very strong water imbibition and ChaoXie
sex, also can be used as alkaline desiccant. Sodium hydroxide
in the national economy has wide application, many industrial
departments need sodium hydroxide. Use the department is most
sodium hydroxide chemical manufacturing, followed by paper,
smelting aluminium, refined tungsten, rayon, viscose and soap
manufacturing. In addition, in manufacturing dye, plastic,
agents and organic intermediates, old rubber regeneration, the
sodium metal, the electrolysis of water and inorganic salt
production, making borax, chromate acid salt, phosphate,
manganese etc, also want to use a large number of caustic soda.
Industrial use sodium hydroxide shall comply with the standard
GB **9 ***6; Industry with ion exchange membrane law shall
conform to the state standards of sodium hydroxide GB/T ****9
*9; Chemical fiber with sodium hydroxide should comply with the
national standard GB ****2 *9; Edible sodium hydroxide should
accord with a country standard GB ******5. Photosynthetic
experiments to absorb carbon dioxide
