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

Pigment The [greek: Kinnabari] Of The Greeks And The Minium--a Term

now confined to red lead--of older writers. Pliny states that it was so
esteemed by the Romans, as to have its price fixed by express law of
state. Among other places, the natural product is met with in
California, Spain, and Peru; and in China there is a native cinnabar so
pure as only to require grinding to become very perfect vermilion.
Whether the natural possesses any advantages over the artificial,
appears to admit of doubt: Bouvier thought that the former blackened
more than the latter, and others coincide with him. As, however, native
vermilion has become commercially obsolete, the question of their
comparative permanence is of little importance. Theoretically, it is
difficult to assign a reason why there should be any difference between
the two.

Vermilion is capable of being made by both wet and dry processes, but
the last are almost exclusively adopted on a scale, and are, we
believe, preferable. Our opinion, expressed with some diffidence, is,
that pigments whose colour depends on the union of sulphur with a
metal--such as vermilion and cadmium yellow--are more stable when the
sulphur is forced to bite into the base. This can only be effected by a
considerable degree of heat, far greater than can be obtained in any
moist method. We hold that in pigments so produced, the sulphur is less
liable to oxidation by air and light, and that therefore the colour
better withstands exposure to those agents. Before now, vermilions have
been taxed with fading in a strong light: supposing them genuine, it
would be interesting to know by what mode they were manufactured.

There are two kinds of vermilion in common use, European and Chinese, of
which the first inclines to orange and the second to purple. These





Next: Include The Several Varieties Known As--vermilion Deep Vermilion
Previous: Vermilion Is So Called From The Italian Word Vermiglio (little Worm)

			Report Privacy
	SHARE	BOOKMARK

Viewed 555