161519
Sodium metabisulfite
reagent grade, 97%
Synonym(s):
Sodium disulfite, Sodium pyrosulfite
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500 G
MXP 753.00
2.5 KG
MXP 2,136.00
About This Item
Linear Formula:
Na2S2O5
CAS Number:
Molecular Weight:
190.11
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.55
Assay:
97%
grade:
reagent grade
form:
powder or crystals
solubility:
water: soluble 650 g/L at 20 °C
Recommended Products
grade
reagent grade
Quality Level
Assay
97%
form
powder or crystals
pH
4.5 (20 °C, 50 g/L)
mp
>300 °C (lit.)
solubility
water: soluble 650 g/L at 20 °C
SMILES string
[Na+].[Na+].[O-]S(=O)S([O-])(=O)=O
InChI
1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
InChI key
HRZFUMHJMZEROT-UHFFFAOYSA-L
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General description
Sodium metabisulfite (MBS, Sodium disulfite) is the sodium salt of disulphurous (pyrosulfurous) acid. It is also commonly added to various food products and wines as a preservative.[1]
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1
Supplementary Hazards
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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Sodium metabisulfite (MBS) is used as a preservative in food and wine and frequently triggers attacks of asthma. To determine the characteristics of responses to inhaled MBS, 30 asthmatic subjects and 16 nonasthmatic subjects inhaled MBS, in concentrations of 6.2
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