A plasticidade dos amorfos: fazendo pigmentos brancos com fosfato de alumínio

AUTOR(ES)

Galembeck, Fernando, Silva, Maria do Carmo V. M. da, Rosseto, Renato

FONTE

Química Nova

DATA DE PUBLICAÇÃO

2007-06

RESUMO

A new white pigment made out of nano-structured non-crystalline aluminum phosphate was recently launched as an industrial product. Pigment opacifying properties are not intrinsic to aluminum phosphate but they arise as the result of a rare hollow particle nano-structure. This is in turn derived from the core-and-shell structure of amorphous aluminum phosphate precipitated under well-defined conditions. The new pigment is a product of the often neglected chemistry of non-crystalline ionic solids that can probably be a rich source of new successful products. The text describes a short account of the R&D activities, from the initial ideas to the present.

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