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

Iodine Blue

It is curious that iodine, which gives a yellow with lead, should also
afford a blue with the same metal. When a solution of iodine in aqueous
soda (carbonate of soda is not so good) is added to nitrate or acetate
of lead-oxide, a transient violet-red precipitate falls, which
decomposes spontaneously under water, yielding iodine and a beautiful
blue powder. The colour, however, is exceedingly fugitive, even the
carbonic acid of the air separating iodine from it and forming a lead
salt. Bearing in mind the scarlet iodide of mercury, iodine is capable
of furnishing the three primary colours, distinguished alike by their
brilliancy and fugacity.





Next: Iridium Blue
Previous: Gold Blue

			Report Privacy
	SHARE	BOOKMARK

Viewed 339