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In The Dark Elf Trilogy by R. A. Salvatore set in the Dungeons & Dragons universe it is used to make drow weaponry. It is also used for armor in The Elder Scrolls III, and in the game Terraria it is a red ore used to produce armor and other items.
Samarium(II) iodide. Samarium(II) iodide is an inorganic compound with the formula SmI 2.When employed as a solution for organic synthesis, it is known as Kagan's reagent.SmI 2 is a green solid and forms a dark blue solution in THF. [1]
The deep blue crystalline solid tends to hydrolyse and evolve (release) ammonia upon standing in air. [1] It is fairly soluble in water. The brilliant dark blue-violet color of tetraamminecopper(II) sulfate solution is due to presence of [Cu(NH 3) 4] 2+ (tetraamminecopper(II) cation).
pale blue Ozone: O 3 pale blue Fluorine: F 2 pale yellow Chlorine: Cl 2 greenish yellow Bromine: Br 2 red/brown Iodine: I 2 dark purple Chlorine dioxide: ClO 2 intense yellow Dichlorine monoxide: Cl 2 O brown/yellow Nitrogen dioxide: NO 2 dark brown Trifluoronitrosomethane: CF 3 NO deep blue Diazomethane: CH 2 N 2 yellow
Two colourless solutions are mixed and at first there is no visible reaction. After a short time delay, the liquid suddenly turns to a shade of dark blue due to the formation of a triiodide–starch complex. In some variations, the solution will repeatedly cycle from colorless to blue and back to colorless, until the reagents are depleted.
This substance is dark blue. If it is heated over 260° the color changes to green, and it melts at 273 °C. [1] [8] A dark blue oil, bis-(o-tolyltriethylphosphonium) tetrabromonickelate (o-CH 3 C 6 H 6 PEt 3) 2 NiBr 4 can be made from the reaction of o-tolyl bis-triethylphosphine, nickel bromide and o-tolyl bromide.
Upon shaking the bottle, oxygen oxidizes methylene blue, and the solution turns blue. The dextrose will gradually reduce the methylene blue to its colorless, reduced form. Hence, when the dissolved dextrose is entirely consumed, the solution will turn blue again. The redox midpoint potential E 0 ' is +0.01 V. [61]
Prussian blue (also known as Berlin blue, Brandenburg blue, Parisian and Paris blue) is a dark blue pigment produced by oxidation of ferrous ferrocyanide salts. It has the chemical formula Fe 3+ 4 [Fe 2+ ( CN ) 6 ] 3 .