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Indigo dye is a dark blue crystalline powder that sublimes at 390–392 °C (734–738 °F). It is insoluble in water, alcohol, or ether, but soluble in DMSO, chloroform, nitrobenzene, and concentrated sulfuric acid. The chemical formula of indigo is C 16 H 10 N 2 O 2. The molecule absorbs light in the orange part of the spectrum (λ max =613 ...
Tekhelet. A set of Tzitzit, four "tassels" or fringes with sky blue threads produced from a Hexaplex trunculus -based dye – tied according to the opinion of the Sefer ha-Chinuch. The national flag of Israel. A contemporary tekhelet thread tied according to Vilna Gaon 's method. Part of a series on.
Isatis tinctoria. Isatis japonica Miq. Isatis tinctoria, also called woad (/ ˈwoʊd /), dyer's woad, dyer's-weed, or glastum, is a flowering plant in the family Brassicaceae (the mustard family) with a documented history of use as a blue dye and medicinal plant. Its genus name, Isatis, derives from the ancient Greek word for the plant ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 25 September 2024. Variety of the color blue For other uses, see Shades of Blue (disambiguation). "Shade of Blue" redirects here. For the song by Black Rebel Motorcycle Club, see Shade of Blue (song). For the R&B/funk band, see Shade of Blue (band). Blue Wavelength 440–490 nm Common connotations ...
65589-70-0. 10597-46-3 (hydrochloride) Alcian Blue 8GX. Alcian Blue. Ingrain Blue 1. 74240. phthalocyanine. 75881-23-1. Alcian yellow GXS.
A green metal used in smithing to craft Orcish weapons and armor in The Elder Scrolls V: Skyrim. In Maplestory it is a fuchsia metal used to craft armors and items. In Guild Wars 2, Orichalcum appears as an amber-colored metal used in crafting various things. In Shadowrun, orichalcum is a magical alloy of gold, silver, mercury, and copper.
Iron gall ink. Oak galls and iron (II) sulfate, ingredients of iron gall ink. 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 ...
Blue pigments are natural or synthetic materials, usually made from minerals and insoluble with water, used to make the blue colors in painting and other arts. The raw material of the earliest blue pigment was lapis lazuli from mines in Afghanistan, that was refined into the pigment ultramarine. Since the late 18th and 19th century, blue ...