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497-19-8 - Sodium carbonate, anhydrous, ACS, 99.5% min - 11552 - Alfa Aesar

11552 Sodium carbonate, anhydrous, ACS, 99.5% min

Codice CAS
497-19-8
Sinonimi

Dimensioni Prezzo ($) Quantità Disponibilità
50g 34,00
500g 48,20
2kg 79,90
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Sodium carbonate, anhydrous, ACS, 99.5% min

MDL
MFCD00003494
EINECS
207-838-8

Proprietà chimiche

Formula
Na2CO3
Peso formula
105.99
Modulo
Granular
Densità
2.53
Indice di rifrazione
1.535
Sensibilità
Hygroscopic
Solubilità
Soluble in water. Slightly soluble in aq. alcohol. Insoluble in carbon disulphide, acetone, and alkyl acetates.

Specifiche categoria

Maximum level of impurities: Insoluble matter 0.005%, pH of a 5% solution 7.5-9.2 at 25°, Cl 0.001%, PO<sub>4</sub> 5ppm, SO<sub>4</sub> 0.002%, Ca 0.005%, Mg 0.002%, Heavy Metals (ICP-OES) 5ppm, Fe 5ppm, Substances reducing permanganate P.T., K 0.005%

Applicazioni

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.

Note

It is hygroscopic in nature, and absorbs moisture from air. On heating, it begins to lose carbon dioxide at about 400 °C.

Letteratura

Fang, L.; Duan, X.; Chen, R.; Cheng, F. An effective utilization of the slag from acid leaching of coal-waste: preparation of water glass with a low-temperature co-melting reaction. J Air Waste Manag Assoc. 2014, 64 (8), 887-93.

Okada, T.; Yonezawa, S. Reduction-melting combined with a Na2CO3 flux recycling process for lead recovery from cathode ray tube funnel glass. Waste Manag. 2014, 4 (8), 1470-1479.

Yang, L.; Cao, J.; Jin, Y.; Chang, H. M.; Jameel, H.; Phillips, R.; Li, Z. Effects of sodium carbonate pretreatment on the chemical compositions and enzymatic saccharification of rice straw. Bioresour. Technol. 2012, 124, 283-91.

Allen, J. A.; Halverson-Tamboli, R. A.; Rasenick, M. M. Lipid raft microdomains and neurotransmitter signalling. Nat. Rev. Neurosci. 2007, 8, 128-140.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H319

Causes serious eye irritation.

Dichiarazioni precauzionali: P280-P264-P305+P351+P338-P337+P313

Wear protective gloves/protective clothing/eye protection/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.

Altri riferimenti

Merck
14,8596
Beilstein
4154566
Codice tariffe armonizzato
2836.20
TSCA
Yes
RTECS
VZ4050000

Raccomandato

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    Sodium hydroxide, pellets, 98%
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    Potassium carbonate, anhydrous, 99%
  • 12314

    Sodium chloride, ACS, 99.0% min
  • 12609

    Potassium carbonate, ACS, 99.0% min
  • 14707

    Sodium hydrogen carbonate, ACS, 99.7-100.3%

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