segunda-feira, 19 de dezembro de 2016

STEP 14

Chimica - Indicare i riferimenti chimici del colore oggetto della ricerca , indicando le formule dei pigmenti sia naturali sia artificiali



As a gem:
CuAl6(PO
4
)4(OH)8·4H
2
O

Turquoise is an opaque, blue-to-green mineral that is a hydrated phosphate of copper and aluminium.


 As a pigment:

Cu3 (AsO4)2 * 4H2O

Pigment: chemical compounds, more or less complex composition, that the finely divided state are able to impart opacity and a certain color in a paint product or in a manufactured product in which they are incorporated. A fundamental characteristic of the pigments which distinguishes them from dyes, is their insolubility in the solvents, in vehicles or in the medium in which are dispersed.

The pigment color that compares the best to my color is the one named "Verde Veronese".

 

Font:
https://en.wikipedia.org/wiki/Turquoise
http://www.chimicamo.org/tutto-chimica/pigmenti.html
http://pigmenti.net/verde_veronese.html
 
 

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