Sodium Metabisulfite, +97%, For analysis ACS

ACROS Organics™

CAS	7681-57-4
Molecular Formula	Na2O5S2
Molecular Weight (g/mol)	190.095
MDL Number	MFCD00167602
InChI Key	HRZFUMHJMZEROT-UHFFFAOYSA-L
Synonym	disodium oxido oxo-kappa 4-sulfanesulfonate, 18403-71-9 unspecified hydrochloride salt, sodium metabisulfite a.c.s. reagent, disulfurous acid sodium salt 1:2, pyrosulfurous acid disodium salt, sodium metabisulfite na2-s2o5, sodium metabisulfite granular, sodium pyrosulfite na2s2o5, sodium metabisulfite usan, sodium bisulfite anhydrous
PubChem CID	656671
SMILES	[O-]S(=O)S(=O)(=O)[O-].[Na+].[Na+]

Category: Salts

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Description

Part Number:419580025
CAS:7681-57-4

products

Chemical Name or Material	Sodium metabisulfite
Purity Grade	ACS Reagent
Molecular Formula	Na2O5S2
MDL Number	MFCD00167602
Synonym	disodium oxido oxo-kappa 4-sulfanesulfonate, 18403-71-9 unspecified hydrochloride salt, sodium metabisulfite a.c.s. reagent, disulfurous acid sodium salt 1:2, pyrosulfurous acid disodium salt, sodium metabisulfite na2-s2o5, sodium metabisulfite granular, sodium pyrosulfite na2s2o5, sodium metabisulfite usan, sodium bisulfite anhydrous
SMILES	[O-]S(=O)S(=O)(=O)[O-].[Na+].[Na+]
PubChem CID	656671
Physical Form	Fine Crystalline Powder
Chlorine (Cl)	500ppm max.
Insoluble Matter	0.005% max.
Packaging	Plastic bottle
Thiosulphate	500ppm max.
Melting Point	150.0°C

CAS	7681-57-4
Assay Percent Range	97+%
Linear Formula	Na₂S₂O₅
Merck Index	15, 8770
InChI Key	HRZFUMHJMZEROT-UHFFFAOYSA-L
Molecular Weight (g/mol)	190.095
Formula Weight	190.1
Percent Purity	≥97%
Heavy Metals (as Pb)	10ppm max.
Iron (Fe)	20ppm max.
Solubility	Solubility in water: 540g/L (20°C). Other solubilities: freely soluble in glycerol, slightly soluble in alcohol
Color	White
Quantity	2.5kg

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