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Sigma-Aldrich

Aluminum potassium sulfate dodecahydrate

SAJ first grade, 99.0-102.0%

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
EC Number:
233-141-3
MDL number:
MFCD00149143
UNSPSC Code:
12352311
PubChem Substance ID:
329747245

grade

SAJ first grade

Assay

99.0-102.0%

form

solid

reaction suitability

reagent type: catalyst
core: aluminum

availability

available only in Japan

pH

3.3 (94.88 g/L)

mp

92 °C (lit.)

density

1.757 g/mL at 25 °C (lit.)

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

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Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Science translational medicine, 7(306), 306ra151-306ra151 (2015-09-25)
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K Yadava et al.
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Thymic stromal lymphopoietin (TSLP) is a cytokine primarily produced by epithelial cells, which has been shown to be a potent inducer of T-helper 2 (Th2)-type responses. However, TSLP has pleiotropic effects upon immune cells, and although extensively studied in the
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
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
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