Aluminum potassium sulfate dodecahydrate

SIGALD/31242 - puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99.5%

Synonym: Alum; Potassium alum; Potassium aluminum sulfate dodecahydrate

CAS Number: 7784-24-9
Empirical Formula (Hill Notation): AlKO₈S₂ · 12H₂O
Molecular Weight: 474.39
EC Number: 233-141-3
MDL Number: MFCD00149143
Linear Formula: AlK(SO₄)₂ · 12H₂O
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-31242-500G	500 g	$212.00 1/EA	Add To Favorites
45-31242-1KG	1 kg	$240.00 1/EA	Add To Favorites

Properties
Descriptions
Safety Info.
Basic Data

agency	reag. Ph. Eur.
anion traces	chloride (Cl^-): ≤5 mg/kg
assay	≥99.5%
cation traces	As: ≤2 mg/kg
	Cd: ≤5 mg/kg
	Cu: ≤5 mg/kg
	Fe: ≤5 mg/kg
	Na: ≤100 mg/kg
	Pb: ≤10 mg/kg
density	1.757 g/mL at 25 °C (lit.)
form	powder or crystals
grade	ACS reagent
	puriss. p.a.
impurities	≤0.005% ammonium (NH₄)
InChI	1S/Al.K.2H2O4S.12H2O/c;;21-5(2,3)4;;;;;;;;;;;;/h;;2(H2,1,2,3,4);12*1H2/q+3;+1;;;;;;;;;;;;;;/p-4
InChI key	GNHOJBNSNUXZQA-UHFFFAOYSA-J
mp	92 °C (lit.)
pH	3.0-3.5 (20 °C, 10%)
Quality Level	200
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

Application:

Extraction and characterization of lignin from oil palm biomass via ionic liquid dissolution and non-toxic aluminium potassium sulfate dodecahydrate precipitation processes.: This study explores an environmentally benign method for extracting lignin from oil palm biomass using ionic liquids, followed by the precipitation of lignin using non-toxic aluminium potassium sulfate dodecahydrate. The process is notable for its eco-friendliness and efficiency in lignin recovery, highlighting a potential application in bio-refining technologies (Mohtar et al., 2015 ).

Reduction of house-dust mite allergen concentrations in carpets by aluminium potassium sulfate dodecahydrate (alum).: This research investigates the effectiveness of aluminium potassium sulfate dodecahydrate (alum) in reducing allergen concentrations in household carpets. The study demonstrates alum′s potential as a simple and cost-effective method to significantly decrease allergen levels, thus contributing to improved indoor air quality and reducing allergen-related health issues (Sevki et al., 2006 ).

General description:

Aluminum potassium sulfate dodecahydrate is an inorganic sulfate salt of aluminum and potassium. Linear growth rates of (100), (111) and (110) faces of its crystals have been investigated.

RIDADR	NONH for all modes of transport
WGK Germany	WGK 1
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

Purity	≥99.5%
mp	92 °C (lit.)
Density	1.757 g/mL at 25 °C (lit.)
UNSPSC	12352302

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