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Selenium, like manganese, can be used in small concentrations to decolorize glass, or in higher concentrations to impart a reddish color, caused by selenium nanoparticles dispersed in glass. It is a very important agent to make pink and red glass. When used together with cadmium sulfide, [9] it yields a brilliant red color known as "Selenium Ruby".
Brown FK: Kipper brown Food Brown 1 azo 8062-14-4: Brown HT: Chocolate brown HT Food Brown 3 20285 diazo 4553-89-3: Brown MX-5BR: Reactive brown 10 179060 azo 12225-67-1: Cadmium acetate: 77185 inorganic 543-90-8: Calcofluor white Fluorescent brightener 28 40622 stilbene 4193-55-9: Calconcarboxylic acid: Patton and Reeder's indicator azo 3737 ...
Ink is a gel, sol, or solution that contains at least one colorant, such as a dye or pigment, and is used to color a surface to produce an image, text, or design. Ink is used for drawing or writing with a pen , brush , reed pen , or quill .
The chestnut tree has also been used since ancient times as a source brown dye. The bark of the tree, the leaves and the husk of the nuts have all been used to make dye. The leaves were used to make a beige or yellowish-brown dye, and in the Ottoman Empire the yellow-brown from chestnut leaves was combined with indigo blue to make shades of ...
The color to the immediate right (color #A52A2A) that was chosen as the web color "brown"—a medium dark red—is the color traditionally called red-brown. That this color is a shade of red and not orange can be easily ascertained by inspecting its h (hue) code, which is 0, signifying a shade of red. The first recorded use of red-brown as a ...
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Dyeing Pigments for sale at a market in Goa, India Cotton being dyed manually in contemporary India Silk dye in pan on stove. Khotan. Dyeing is the application of dyes or pigments on textile materials such as fibers, yarns, and fabrics with the goal of achieving color with desired color fastness.
Iron gall ink (also known as common ink, standard ink, oak gall ink or iron gall nut ink) is a purple-black or brown-black ink made from iron salts and tannic acids from vegetable sources. It was the standard ink formulation used in Europe for the 1400-year period between the 5th and 19th centuries, remained in widespread use well into the 20th ...