Chromium(III) potassium sulfate dodecahydrate

製品名

Chromium(III) potassium sulfate dodecahydrate, for analysis EMSURE^® ACS,Reag. Ph Eur

SMILES string

[Cr+3].[K+].[S](=O)(=O)([O-])[O-].[S](=O)(=O)([O-])[O-].O.O.O.O.O.O.O.O.O.O.O.O

InChI

1S/Cr.K.2H2O4S.12H2O/c;;2*1-5(2,3)4;;;;;;;;;;;;/h;;2*(H2,1,2,3,4);12*1H2/q+3;+1;;;;;;;;;;;;;;/p-4

InChI key

ZFVHBEKVAITXHW-UHFFFAOYSA-J

grade

ACS reagent

agency

reag. Ph. Eur.

product line

EMSURE^®

assay

99.0-102.0% (iodometric)

form

solid

impurities

≤0.01% Insoluble matter

pH

3 (20 °C, 50 g/L in H₂O)

mp

89 °C

density

1.83 g/cm³ at 20 °C

bulk density

800‑1000 kg/m³

anion traces

chloride (Cl^-): ≤0.002%

cation traces

Al: ≤0.005%
Cu: ≤0.001%
Fe: ≤0.010%
NH₄⁺: ≤0.010%
Pb: ≤0.005%
heavy metals (as Pb): ≤0.01%

storage temp.

15-25°C

Quality Level

300