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Merck

A7210

Aluminum potassium sulfate dodecahydrate

BioXtra, ≥98.0%

Synonym(s):

Alum, Potassium alum, Potassium aluminum sulfate dodecahydrate

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About This Item

Linear Formula:
AlK(SO4)2 · 12H2O
CAS Number:
7784-24-9
Molecular Weight:
474.39
NACRES:
NA.25
PubChem Substance ID:
24891189
UNSPSC Code:
12161700
EC Number:
233-141-3
MDL number:
MFCD00149143
Assay:
≥98.0%
Form:
powder
Solubility:
H2O: 0.5 M, clear, colorless

Key Documents

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Product Name

Aluminum potassium sulfate dodecahydrate, BioXtra, ≥98.0%

InChI key

GNHOJBNSNUXZQA-UHFFFAOYSA-J

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

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

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%

Quality Level

200

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Related Categories

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

A7210-VAR: + A7210-BULK: + A7210-100G:4548173954080 + A7210-500G:4548173954097

jan

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Certificates of Analysis (COA)

Lot/Batch Number
0000466049
0000466049
0000364213
0000364212
0000364213

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