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31242

Sigma-Aldrich

Aluminum potassium sulfate dodecahydrate

puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99.5%

Synonyme(s) :

Alum, Potassium alum, Potassium aluminum sulfate dodecahydrate

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About This Item

Formule linéaire :
AlK(SO4)2 · 12H2O
Numéro CAS:
7784-24-9
Poids moléculaire :
474.39
Numéro CE :
233-141-3
Numéro MDL:
MFCD00149143
Code UNSPSC :
12352302
ID de substance PubChem :
329753695
Nomenclature NACRES :
NB.24

Qualité

ACS reagent
puriss. p.a.

Niveau de qualité

200

Agence

reag. Ph. Eur.

Pureté

≥99.5%

Forme

powder or crystals

Impuretés

≤0.005% ammonium (NH4)

pH

3.0-3.5 (20 °C, 10%)

Pf

92 °C (lit.)

Densité

1.757 g/mL at 25 °C (lit.)

Traces d'anions

chloride (Cl-): ≤5 mg/kg

Traces de cations

As: ≤2 mg/kg
Cd: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Na: ≤100 mg/kg
Pb: ≤10 mg/kg

Chaîne SMILES 

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

Clé InChI

GNHOJBNSNUXZQA-UHFFFAOYSA-J

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Description générale

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.

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).

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

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Growth rates of aluminum potassium sulfate crystals in aqueous solutions.
Botsaris GD and Denk Jr EG.
Industrial & Engineering Chemistry Fundamentals, 9(2), 276-283 (1970)
Michael S Sinyakov et al.
Vaccine, 24(42-43), 6534-6541 (2006-07-18)
Bovine serum albumin (BSA) and the surface A-layer protein (AP) of an atypical strain of fish bacterial pathogen Aeromonas salmonicida were covalently linked with polymeric nano- and microparticles, and antigenicity of the resulted conjugates was compared in mice and goldfish.
Saya Moriyama et al.
The Journal of experimental medicine, 211(7), 1297-1305 (2014-06-11)
Follicular helper T (Tfh) cells access the B cell follicle to promote antibody responses and are particularly important for germinal center (GC) reactions. However, the molecular mechanisms of how Tfh cells are physically associated with GCs are incompletely understood. We
Gareth R Williams et al.
The Journal of experimental medicine, 211(6), 1019-1025 (2014-05-07)
There is currently no paradigm in immunology that enables an accurate prediction of how the immune system will respond to any given agent. Here we show that the immunological responses induced by members of a broad class of inorganic crystalline
Yan-Feng Li et al.
Nature communications, 5, 4273-4273 (2014-07-01)
Germline or B-cell-specific loss of Ptpn6 gene encoding the Shp1 protein tyrosine phosphatase leads to skewed B lymphopoiesis and systemic autoimmunity. Here, to study its role in B-cell terminal differentiation, we generated Ptpn6(f/f)Aicda(Cre/+) mice with Shp1 ablated only in activated
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