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Merck
CN

12625

Aluminum potassium sulfate

puriss., anhydrous, calcined, ≥98% (calc with ref. to anhyd. subst.), powder

Synonym(s):

Potassium alum, Potassium aluminum sulfate

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About This Item

Linear Formula:
KAl(SO4)2
CAS Number:
10043-67-1
Molecular Weight:
258.21
UNSPSC Code:
12352302
PubChem Substance ID:
329749778
EC Number:
233-141-3
MDL number:
MFCD00003428

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InChI key

GRLPQNLYRHEGIJ-UHFFFAOYSA-J

InChI

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

SMILES string

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

grade

puriss.

assay

≥98% (calc with ref. to anhyd. subst.)

form

powder

quality

calcined

impurities

≤0.005% heavy metals (as Pb), ≤0.05% ammonium (NH4)

loss

≤5% loss on drying, 250 °C

cation traces

As: ≤5 mg/kg, Fe: ≤100 mg/kg

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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