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237086

Aluminum potassium sulfate dodecahydrate

Name: Aluminum potassium sulfate dodecahydrate
Brand: SIGALD

ACS reagent, ≥98%

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:

NB.24

PubChem Substance ID:

329752443

UNSPSC Code:

12352302

EC Number:

233-141-3

MDL number:

MFCD00149143

Assay:

≥98%, 98.0-102.0% (ACS specification)

Grade:

ACS reagent

Form:

powder or crystals

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Properties

grade

ACS reagent

Quality Level

200

assay

≥98%, 98.0-102.0% (ACS specification)

form

powder or crystals

reaction suitability

reagent type: catalyst
core: aluminum

impurities

≤0.005% insolubles

pH

3.3 (94.88 g/L)

mp

92 °C (lit.)

density

1.757 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^-): ≤5 ppm

cation traces

Fe: ≤0.001%, NH₄⁺: ≤0.005%, Na: ≤0.02%, heavy metals: ≤0.001% (by ICP)

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

Description

Application

Aluminum potassium sulfate dodecahydrate has been used:

to prepare Mayer′s hematoxylin solution for staining of lung sections and tibialis anterior muscle sections
to sensitize experimental mice and establish the allergic rhinitis (AR) mouse model
to stain mammary glands for its whole-mount analysis

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Storage Class

11 - Combustible Solids

wgk

WGK 1

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Botsaris GD and Denk Jr EG.

Industrial & Engineering Chemistry Fundamentals, 9(2), 276-283 (1970)

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Michael S Sinyakov et al.

Vaccine, 24(42-43), 6534-6541 (2006-07-18)

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Global Trade Item Number

SKU	GTIN
237086-100G	04061835346875
237086-2.5KG	04061832562926
237086-500G	04061838785930