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Prussian blue is a dark blue pigment containing iron and cyanide produced by the oxidation of ferrous ferrocyanide salts. It was invented in Berlin between 1704 and 1710. It had an immediate impact on the pigment market, because its intense deep blue color approached the quality of ultramarine at a much lower price.
Egyptian blue was used to paint wood, papyrus and canvas, and was used to color a glaze to make faience beads, inlays, and pots. It was particularly used in funeral statuary and figurines and in tomb paintings. Blue was considered a beneficial color which would protect the dead against evil in the afterlife. Blue dye was also used to color the ...
The dye is made from phenol, first oxidising it with oxalic acid and sulfuric acid to make a red substance called rosolic acid. By treating this with ammonia, a dye called red coralline or péonine was made. When reacted with aniline, the blue azuline was produced. This was invented by Jules Persoz in Paris.
The thread is lifted now and again on the end of a stick, and again plunged in until it is all thoroughly dyed. If blue, the thread is then washed in salt water, but any other colour uses fresh water. Amateurs may wish to experiment with some of the suggestions, as urine (human or animal) is used in many recipes as a mordant. A number of the ...
Munjeet was an important dye for the Asian cotton industry and is still used by craft dyers in Nepal. [22] indigo Indigo is a deep blue derived from any of the indigo dye-bearing plants, primarily those in the genus Indigofera, especially true indigo (Indigofera tinctoria, also known as Indigofera sumatrana). [5] [6
Indigo dye is an organic compound with a distinctive blue color. Indigo is a natural dye extracted from the leaves of some plants of the Indigofera genus, in particular Indigofera tinctoria . Dye-bearing Indigofera plants were commonly grown and used throughout the world, particularly in Asia, with the production of indigo dyestuff economically ...
From warm platinum to multifaceted toffee hues, the following tones have emerged as the most covetable colors! Below, take a peek at the prettiest shades for your strands. Shimmery Platinum Blonde
The word is derived from the Latin word caeruleus (Latin: [kae̯ˈru.le.us]), "dark blue, blue, or blue-green", which in turn probably derives from caerulum, diminutive of caelum, "heaven, sky". [2] "Cerulean blue" is the name of a blue-green pigment consisting of cobalt stannate (Co 2 SnO 4). The pigment was first synthesized in the late ...