碳酸钠

Sodium carbonate is commonly used as an inorganic base and a buffer component in several synthetic organic transformations in both chemical industries and research laboratories. Often used as an electrolyte, sodium carbonate acts as a very good conductor in the process of electrolysis. Apart from being used as a common chemical/biological/biotechnological laboratory reagent, it is also used as a water softener in laundering, processing wood pulp, cleaners, and making glass. It can be used for standardization of acids, and qualitative testing of cations. In dyeing with fiber-reactive dyes, sodium carbonate is used to ensure proper chemical bonding of the dye with cellulose fibers.

m.p. 851?° (begins to lose CO{2} at 400?°)It is hygroscopic in nature, and absorbs moisture from air. On heating, it begins to lose carbon dioxide at about 400 ?°C.

MFCD00003494

207-838-8

Na₂CO₃

105.99

2.53

1.535

Hygroscopic. Ambient temperatures.

Solid

Soluble in water. Slightly soluble in aq. alcohol. Insoluble in carbon disulphide, acetone, and alkyl acetates.

4154566

14,8596

36
Irritating to eyes.

22-26
Do not breathe dust.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

VZ4050000

是

 

H319
Causes serious eye irritation.

P280i-P264-P305+P351+P338-P337+P313
Wear eye/face protection.Wash thoroughly after handling.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.If eye irritation persists: Get medical advice/attention.