Sodium Pyrosulfite CAS 7681-57-4

CAS:7681-57-4
MF:Na2S2O5
MW:190.11
EINECS:231-673-0
Andere Namen:Natrium pyrosulfite

CAS: 7681-57-4

MF: Na2S2O5

What is of Sodium Pyrosulfite with cas 7681-57-4?

Sodium metabisulfite (chemical formula: Na2S2O5) appears as a white crystalline or powder solid with a slight sulfur odor. It is toxic upon inhalation and can strongly irritate skin and tissue. It can be decomposed to release toxic oxide fumes of sulfur and sodium upon high temperature. It can be mixed with water to form a corrosive acid. It is generally used as disinfectant, antioxidant, and preservative agent as well as a laboratory reagent. As a kind of food additive, it can be used as a preservative and antioxidant in food. It can also be applied to the wine and beer making.

Spezifikation

ELEMENT	TESTERGEBNIS
Natriummetabisulfit (Na2S2O5) %	97.21
SO2 % ≥	65
Fe % ≤	0.002
Klarheit	klar
Insoluble matter in nitric acid% ≤	0.009
AS%	<0.00009
Phosphoric acid test ≤	4.2
Aussehen	White to slightly yellowish crystialline powder

Usage

Natriumdisulfit ist ein Konservierungsmittel und Antioxidans, das existiert als Kristalle oder Pulver mit einem Schwefeldioxid-Geruch. es ist leicht löslich in Wasser. es wird verwendet, in getrocknete Früchte zu bewahren die Geschmack, Farbe, und zur Hemmung unerwünschter Mikroorganismen-Wachstum.