1.01047

Aluminium potassium sulfate dodecahydrate

for analysis EMSURE^® ACS,Reag. Ph Eur

• Synonym(s): Aluminium potassium sulfate dodecahydrate, Potassium aluminium sulfate, Alum potassium, Potassium alum
• Linear Formula: KAl(SO₄)₂ · 12 H₂O
• CAS Number: 7784-24-9
• Molecular Weight: 474.39
• MDL number: MFCD00149143
• UNSPSC Code: 12352302
• EC Index Number: 233-141-3
• NACRES: NA.21

Properties

• grade: ACS reagent
• Quality Level: 300
• Agency: reag. Ph. Eur.
• product line: EMSURE^®
• Assay: 99.0-100.5% (complexometric)
• form: solid
• impurities: ≤0.005% Insoluble matter
• pH: 3.0-3.5 (20 °C, 100 g/L in H₂O)
• mp: 92.5 °C
• density: 1.75 g/cm³ at 20 °C
• bulk density: 900 kg/m³
• anion traces: chloride (Cl^-): ≤0.0005%
• cation traces: Cd: ≤0.0005%; Cu: ≤0.0005%; Fe: ≤0.0005%; NH₄⁺: ≤0.005%; Na: ≤0.005%; Pb: ≤0.0005%; heavy metals (as Pb): ≤0.001%
• storage temp.: 2-30°C
• 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

• 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).

Analysis Note

Assay (complexometric): 99.0 - 100.5 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 0.005 %
pH-value (10 %; in water): 3.0 - 3.5
Chloride (Cl): ≤ 0.0005 %
Heavy metals (as Pb): ≤ 0.001 %
Cd (Cadmium): ≤ 0.0005 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
Na (Sodium): ≤ 0.005 %
NH₄ (Ammonium): ≤ 0.005 %
Pb (Lead): ≤ 0.0005 %
Corresponds to ACS,Reag. Ph Eur

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1