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1.01036

Supelco

Chromium(III) potassium sulfate dodecahydrate

for analysis EMSURE® ACS,Reag. Ph Eur

Synonym(s):

Chromium(III) potassium sulfate dodecahydrate, Potassium chromium(III) sulfate, Alum chrome

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About This Item

Linear Formula:
KCr(SO4)2 · 12H2O
CAS Number:
Molecular Weight:
499.40
MDL number:
UNSPSC Code:
12352302
EC Index Number:
233-401-6
NACRES:
NA.21

grade

ACS reagent

Quality Level

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

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

Related Categories

Analysis Note

Assay (iodometric): 99.0 - 102.0 %
Identity: passes test
Insoluble matter: ≤ 0.01 %
Chloride (Cl): ≤ 0.002 %
Heavy metals (as Pb): ≤ 0.01 %
Al (Aluminium): ≤ 0.005 %
Cu (Copper): ≤ 0.001 %
Fe (Iron): ≤ 0.010 %
NH₄ (Ammonium): ≤ 0.010 %
Pb (Lead): ≤ 0.005 %

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 3


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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