Merck
All Photos(3)

A7210

Sigma-Aldrich

Aluminum potassium sulfate dodecahydrate

BioXtra, ≥98.0%

Synonym(s):
Alum, Potassium alum, Potassium aluminum sulfate dodecahydrate
Linear Formula:
AlK(SO4)2 · 12H2O
CAS Number:
Molecular Weight:
474.39
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.25

Quality Level

product line

BioXtra

assay

≥98.0%

form

powder

impurities

≤0.0005% Phosphorus (P)
≤0.005% Insoluble matter

mp

92 °C (lit.)

solubility

H2O: 0.5 M, clear, colorless

density

1.757 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤0.0005%

cation traces

Ca: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.001%
Mg: ≤0.005%
NH4+: ≤0.005%
Na: ≤0.02%
Pb: ≤0.001%
Zn: ≤0.0005%

SMILES string

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

InChI

1S/Al.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

GNHOJBNSNUXZQA-UHFFFAOYSA-J

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Related Categories

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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