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7757-83-7 - Sodium sulfite, anhydrous, 98% - A17933 - Alfa Aesar

A17933 Sodium sulfite, anhydrous, 98%

CAS-Nummer
7757-83-7
Synonyme

Größe Preis ($) Menge Verfügbarkeit
500g 27,19
2500g 79,21
10000g 263,68
Zum Warenkorb hinzufügen Zur Angebotsanfrage hinzufügen Artikel anzeigen

Sodium sulfite, anhydrous, 98%

MDL
MFCD00003503
EINECS
231-821-4

Chemische Eigenschaften

Formel
Na2SO3
Molmasse
126.04
Schmelzpunkt
>500° dec.
Dichte
2.633
Löslichkeit
Soluble in water and glycerol. Insoluble in alcohol, liquid chlorine and liquid ammonia.

Anwendungen

Sodium sulfite is used in the photography industry to protect developing solutions from oxidation, in the pulp and paper industry, in water treatment as an oxygen scavenger agent, as a desulfurizing and dechlorinating agent in the leather industry and as a bleaching agent in textile industry. It is used as a preservative to prevent dried fruit from discoloring. It finds application as a sulfonation and sulfomethylation agent in the chemical industry. It is involved in the production of sodium thiosulfate. Other applications include forth flotation ores, oil recovery and making dyes.

Bemerkungen

Hygroscopic. Moisture and air sensitive. Keep the container tightly closed in a dry and well-ventilated place. Incompatible with acids, strong oxidizing agents.

Literaturverweise

Cavka, A.; Martín, C.; Alriksson, B.; Mörtsell, M.; Jönsson, L. J. Techno-economic evaluation of conditioning with sodium sulfite for bioethanol production from softwood. Bioresour. Technol. 2015, 196, 129-135.

Du, F.; Alam, M. N.; Pawliszyn, J. Aptamer-functionalized solid phase microextraction-liquid chromatography/tandem mass spectrometry for selective enrichment and determination of thrombin. Anal. Chim. Acta. 2014, 845, 45-52.

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H303

May be harmful if swallowed.

Sicherheitshinweise: P312

Call a POISON CENTER or doctor/physician if you feel unwell.

Weitere Referenzen

Merck
14,8682
Harmonized Tariff Code
2832.10
TSCA
Yes
RTECS
WE2150000

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Kürzlich angesehen

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