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Difference between organic pigments and inorganic pigments
Pigments are usually the powder and it will become the paint when it mixed with water or oil. In general, we can say that pigment is the material that gives color. Commonly there are different types of pigments are available on the basis of composition: organic pigments and inorganic pigments.
Moreover, pigments and dyes are often considered as the same thing but the difference is that the dyes are soluble with binder or media whereas the pigments are not soluble in media.
Features of the Pigments:
- Consistency
- Easily dispersible
- High tinting strength
- Shade uniqueness
- Excellent light and weather fastness
- Solvent resistant properties
- When applied in paints good overspray
Organic pigment – based on the carbon chains and carbon rings. Even though it is the organic segments it also contains some metallic inorganic elements which help to gain the properties of the organic elements.
Examples of Organic Pigments:
- Diazo
- Naphthol
- Azo lakes
- Naphthol AS
- Benzimidazolone
- Diazo condensation
Inorganic pigment – they are the chemical compounds and it is not based on the carbon rings and chains. They are usually the metallic salt that happened from the solutions.
Examples for Inorganic Pigments:
- Iron oxide
- Cadmium
- Lead chromate
- Chrome green
- Chromium oxide green
- Ultramarine blue
- Iron blue
How to Choose the Right Pigment?
While choosing the pigment for various commercial and industrial purposes, people need to concentrate on some of the factors that as follows,
- Hiding efficiency
- Colour
- pH value
- Bulking value
- Density
- Refractive index
- Hardness
- Oil absorption
