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163511

Hydroxymethanesulfinic acid monosodium salt dihydrate

Synonym(s):

Sodium formaldehydesulfoxylate

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100 G

$40.20

1 KG

$97.80

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About This Item

Linear Formula:
HOCH2SO2Na · 2H2O
CAS Number:
Molecular Weight:
154.12
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352100
EC Number:
205-739-4
MDL number:

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InChI key

UCWBKJOCRGQBNW-UHFFFAOYSA-M

InChI

1S/CH4O3S.Na.2H2O/c2-1-5(3)4;;;/h2H,1H2,(H,3,4);;2*1H2/q;+1;;/p-1

SMILES string

[Na+].[H]O[H].[H]O[H].OCS([O-])=O

form

powder

mp

64-68 °C (lit.)

solubility

alcohol: slightly soluble(lit.)
benzene: slightly soluble(lit.)
chloroform: slightly soluble(lit.)
diethyl ether: slightly soluble(lit.)
water: freely soluble(lit.)

functional group

sulfinic acid

Quality Level

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This Item
146617571024242837
solubility

alcohol: slightly soluble(lit.), chloroform: slightly soluble(lit.), water: freely soluble(lit.), benzene: slightly soluble(lit.), diethyl ether: slightly soluble(lit.)

solubility

water: soluble 100 mg/mL, clear to slightly hazy, yellow (to red)

solubility

acetic acid: soluble(lit.), chloroform: soluble(lit.), dichloromethane: soluble(lit.)

solubility

alcohol: soluble(lit.), diethyl ether: soluble(lit.)

Quality Level

100

Quality Level

100

Quality Level

200

Quality Level

100

form

powder

form

powder

form

-

form

liquid

mp

64-68 °C (lit.)

mp

300 °C

mp

-

mp

-

functional group

sulfinic acid

functional group

-

functional group

-

functional group

bromo, carboxylic acid

General description

Oxidation reation of hydroxymethanesulfinic acid with chlorite has been studied in the pH range 4-8[1]. It is a sulfur-containing reducing agent[2].

pictograms

Health hazard

signalword

Warning

Hazard Classifications

Muta. 2 - Repr. 2

supp_hazards

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves


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Oxyhalogen-Sulfur Chemistry: Oxidation of Hydroxymethanesulfinic Acid by Chlorite 1.
Salem MA, et al.
The Journal of Physical Chemistry, 100(22), 9377-9384 (1996)
Recent trends in the chemistry of sulfur-containing reducing agents.
Makarov, SV.
Russ. Chem. Rev., 70(10), 885-895 (2001)
S V Makarov et al.
Archives of biochemistry and biophysics, 367(2), 289-296 (1999-07-09)
Sodium hydroxymethanesulfinate, (HOCH2SO2Na, HMS) is relatively stable in aqueous alkaline environments, but rapidly decomposes in acidic medium to give a variety of products that include sulfur dioxide. A detailed kinetic and mechanistic study of the decomposition of HMS in slightly

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