Sodium metabisulfite, CAS No. 7681-57-4

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Sodium metabisulfite CAS No.7681-57-4 / Cat No.EBD33920

Formula: Na2O5S2

Molecular Weight:190.11

Synonyms:

Sodium pyrosulfite

Disodium disulphite

Disulfurous acid disodium salt

Pyrosulfurous acid disodium salt

Sodium metabisulfite

disodium disulphite

Sodium metabisulphite

Sodium disulphite

Sodium pyrosulphite

SODIUM DISULFITE

disodium oxidosulfanesulfonate oxide

Sodium Metabi

Metabisulfite Sodium

disodium disulphite

Sodium metabisulphite

Sodium disulphite

Sodium pyrosulphite

SODIUM DISULFITE

disodium oxidosulfanesulfonate oxide

Sodium Metabi

Metabisulfite Sodium

Na2S2O5

sodium metabisulfite

sodium pyrosulfite

disulfurous acid disodium salt

pyrosulfurous acid disodium salt

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Properties
Safety Information
NMR Spectrum

Properties

Appearance:

white crystalline powder with a sulfur smell
Density:

1.48
Melting point:

>300 °C(lit.)
Storage temperature:

Store at RT.
Solubility:

water: 54 g/100 ml

Safety Information

Symbol:
Signal words:

Danger
Hazard statements:

H302 Harmful if swallowed.

H318 Causes serious eye damage.

EUH031 Contact with acids liberates toxic gas.
Precautionary statements:

P280 Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312+P330 IF SWALLOWED:Call a POISON CENTER or doctor/physician if you feel unwell. Rinse mouth.

P305+P351+P338+P310 IF IN EYES:Rinse cautiously with water for several minutes.Remove contact lenses, if present and easy to do. Continue rinsing.Immediately call a POISON CENTER or doctor/physician.

NMR Spectrum

¹H NMR

¹³C NMR