Sodium dichromate dihydrate

grade

ACS reagent

Quality Level

200

Assay

≥99.5%

form

crystals

reaction suitability

reagent type: oxidant

impurities

≤0.005% NH₄OH ppt.
≤0.005% insolubles

pH

3.5 (20 °C 100 g/L)

mp

91 °C (lit.)

anion traces

chloride (Cl^–): ≤0.005%
sulfate (SO₄^2-): ≤0.01%

cation traces

Al: ≤0.002%
Ca: ≤0.003%

SMILES string

O.O.[Na+].[Na+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O

InChI

1S/2Cr.2Na.2H2O.7O/h;;;;2*1H2;;;;;;;/q;;2*+1;;;;;;;;2*-1

InChI key

JYDRNIYTFCBIFC-UHFFFAOYSA-N