Hydroxyl aluminium bis(2-ethylhexanoate) is a

chemical substance A chemical substance is a form of matter having constant chemical composition and characteristic properties. Some references add that chemical substance cannot be separated into its constituent elements by physical separation methods, i.e., w ...

derived from

2-ethylhexanoic acid 2-Ethylhexanoic acid is the organic compound with the formula CH3(CH2)3CH(C2H5)CO2H. It is a carboxylic acid that is widely used to prepare lipophilic metal derivatives that are soluble in nonpolar organic solvents. 2-Ethylhexanoic acid is a colo ...

and aluminium(III). Nominally it is the

coordination complex A coordination complex consists of a central atom or ion, which is usually metallic and is called the ''coordination centre'', and a surrounding array of bound molecules or ions, that are in turn known as '' ligands'' or complexing agents. ...

with the formula Al(OH)(O₂CCHEt(CH₂)₃CH₃)₂ where Et = ethyl. The composition is not a homogeneous compound. It is used as a thickening agent in various products, including in

napalm Napalm is an incendiary mixture of a gelling agent and a volatile petrochemical (usually gasoline (petrol) or diesel fuel). The name is a portmanteau of two of the constituents of the original thickening and gelling agents: coprecipitated alu ...

. It is slightly hygroscopic.

References

Aluminium compounds Ethylhexanoates {{organic-compound-stub