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potassium alum

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potassium alum
potassium alum

Chemical names and formulas

formula | AlKO_8S_2 name | potassium alum IUPAC name | potassium aluminum(+3) cation disulfate alternate names | alum | aluminum potassium sulfate | alum potassium | burnt alum mass fractions | Al (aluminum) 10.5% | K (potassium) 15.1% | O (oxygen) 49.6% | S (sulfur) 24.8%
formula | AlKO_8S_2 name | potassium alum IUPAC name | potassium aluminum(+3) cation disulfate alternate names | alum | aluminum potassium sulfate | alum potassium | burnt alum mass fractions | Al (aluminum) 10.5% | K (potassium) 15.1% | O (oxygen) 49.6% | S (sulfur) 24.8%

Structure diagram

Structure diagram
Structure diagram

Basic properties

molar mass | 258.19 g/mol phase | solid (at STP) melting point | 92.5 °C density | 1.725 g/cm^3
molar mass | 258.19 g/mol phase | solid (at STP) melting point | 92.5 °C density | 1.725 g/cm^3

Units

Solid properties (at STP)

density | 1.725 g/cm^3
density | 1.725 g/cm^3

Units

Chemical identifiers

CAS number | 10043-67-1 PubChem CID number | 24856 SMILES identifier | [O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Al+3].[K+] InChI identifier | InChI=1/Al.K.2H2O4S/c;;2*1-5(2, 3)4/h;;2*(H2, 1, 2, 3, 4)/q+3;+1;;/p-4/fAl.K.2O4S/q2m;2*-2 EU number | 233-141-3 Gmelin number | 38649 RTECS number | WS5650000
CAS number | 10043-67-1 PubChem CID number | 24856 SMILES identifier | [O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Al+3].[K+] InChI identifier | InChI=1/Al.K.2H2O4S/c;;2*1-5(2, 3)4/h;;2*(H2, 1, 2, 3, 4)/q+3;+1;;/p-4/fAl.K.2O4S/q2m;2*-2 EU number | 233-141-3 Gmelin number | 38649 RTECS number | WS5650000

Toxicity properties

odor | odorless
odor | odorless
RTECS classes | mutagen
RTECS classes | mutagen