Encyclopedia > Madder

Article Content

Madder

Madder has been used since ancient times as a red dye. The chemical name for the pigment is alizarin.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Photosynthesis

... which use hydrogen sulfide instead of water in their photosynthetic pathway: CO2 + 2 H2S → CH2O + H2O + 2S Some of these produce globules of sulfur as a waste ...