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Organic vs Inorganic Pigments
The difference between Organic Pigments and Inorganic Pigments are
based upon three principle factors. These three principle factors are given
Molecular structure of the pigments
In the molecules of the Inorganic Pigments, the
cations of metal are found in an array form with the non-metallic anions.
This arrangement doesn't allow these pigments to dissolve in the solvent and
plastic. Examples: Iron oxide yellow, black, red and tan pigments.
In the molecules of the Organic Pigments, carbon chains or carbon rings are
always present. As carbon element is associated with nitrogen and sulphur
elements of the same class of the atomic table, so, sometimes in the
molecules of the organic pigments, the atoms of nitrogen and sulphur atoms
are also found along with the carbon atoms. Examples: Azo, pythalocyanine,
diazo and anthraquinone pigments.
Source from where they are derived
The main source of organic pigments are plants
and plant products whereas inorganic pigments are manufactured from topical
cosmetic and also from dirt.
The differences between Organic and Inorganic pigments
||Chemically refined oil
|Dyeing / Coloring Strength
||Vary from poor to good
||Insoluble in solvents
||Have have little degree of solubility
|Degree of safety
||May be unsafe
||Mostly too expensive