Most Viewed

- Browns And The Cold Semi-neutral Grays Marrone Is Practically To
- Also Called Scarlet Chrome Is A Bright Chromate Of Lead Of An
- Black Chalk
- Composition Chemical Analysis Has Shown Several Of The Blues To Be
- Burnt Verdigris
- Belong The Dutch And Flemish Schools; The Sensible Which Aims At
- Less Known As English Red Prussian Red And Scarlet Ochre True
- Olive In Dark Green; Russet And Citrine In Dark Orange The
- Known Likewise As Raw Sienna Earth Terra Di Sienna &c Is A
- Root Of The Anchusa Tinctoria Commonly Known As Alkanet A Plant

Least Viewed

- Their Chief Source The Greens Consist Of Yellow Mixed With Copper
- Only That Of Extreme Light Objects Opaque It Follows That White Is To
- To Which The Various Appellations Have Been Given Of Thenard's Blue
- Thallium Orange
- Distilled Verdigris Or More Properly Refined Verdigris The Best Is
- Molybdenum Green
- Red And Blue In The Proportions Of Five Of The Former To Eight Of
- Violet De Mars Purple Ochre Or Mineral Purple Is A Dark Ochre
- Uniform Colour Thus Composed Is The Citrine Colour Of Fruit And
- Also In The Olive Foliage Of The Rose-tree Formed In The Individual

Cadmium Brown

By igniting the white carbonate of cadmium, among other methods, a
cinnamon-brown oxide is obtainable, of a very clear and beautiful colour
if the process be well conducted. It is, however, not eligible as a
pigment, owing to the rapidity with which the oxide is acted upon by the
air. In water, especially, we have found this brown so eagerly absorb
carbonic acid from the atmosphere as to become in a few months once more
a carbonate, and as purely white as before. The same result is
observable when the powder is exposed: some shown at the International
Exhibition of 1862, on a glass stand, had to be removed, its label
marked 'Cadmium Brown' being at last found attached to a sample of
cadmium white. In oil, the conversion takes place less readily, that
vehicle having the property of protecting, to some extent, pigments from
oxidation. It is curious that even in a book a water-rub of the brown
slowly but surely changes to white.





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Previous: Cory's Yellow Madder Or Cory's Madder Is Classed Among The Browns

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