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
