Helping San Diego, California and beyond since 1997.
Do you need
volunteer, community service, work, military or court hours?
|
|
Helping San Diego, California and beyond since 1997.
|
|
Click here and add this page to your favorites!
|
Encyclopedia Britannica - Main :: GRA-GUI |
|
|
GROUP I . Elements.All the black pigments in ordinary useivory black, lamp black, charcoal black, Indian ink, and graphite, less correctly termed black-lead and plumbagoconsist of or contain carbon, an element
change . The metallic pigments, gold, silver, aluminium and platinum, belong here; of these, silver alone is easily susceptible of change , tarnishing by combination with sulphur
Gaoue II. Oxides.The oxides have generally been formed at a high temperature ana are not easily amenable to physical
oxide
umber
oxide
cobalt green (CoO,nZnO), cobalt blue (CoO,nAl2O3), coeruleum (CoO,nSnO2), Venetian red, light red, Indian red and burnt sienna (all chiefly composed of ferric oxide), and red lead (Pb204).End of Article: GROUP I If you wish, you can link directly to this article.
<a href="http://jcsm.org/StudyCenter/Encyclopedia/GRA_GUI/GROUP_I.html"> GROUP I </a> |
|
|
(Previous) GROUP |
(Next) GROUP II |
|
Sponsored Advertisements