Search results
Results from the WOW.Com Content Network
Indanthrone is utilized as a blue pigment (C.I. Pigment Blue 60), primarily in the process of vat dyeing, often referred to as C.I. Vat Blue 4. [8] Indanthrone is a vat dye, synthesized to provide highest color fastness for the dyeing and printing of predominantly cellulose-based textile fibers. Fabrics dyed with indanthrene fulfill the highest ...
The first anthraquinone-based synthetic vat dye was indanthrone (C.I. Vat Blue 4) - the synthesis of which was developed by René Bohn in 1901: Synthesis of indanthrone By dimerization of 2-aminoanthraquinone ( 1 ) under strongly alkaline conditions at 220-235 °C, intermediate stage 3 is obtained in two steps, which is cyclized ...
Han blue: BaCuSi 4 O 10. Azurite: cupric carbonate hydroxide (Cu 3 (CO 3) 2 (OH) 2). Basic copper carbonate: Cu 2 (OH) 2 CO 3. Iron pigments. Prussian blue (PB27): a synthetic inert pigment made of iron and cyanide: C 18 Fe 7 N 18. Manganese pigments. YInMn Blue: a synthetic pigment discovered in 2009 (YIn 1−x Mn x O 3). [4] Manganese blue ...
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.
Ultramarine is a deep blue color pigment which was originally made by grinding lapis lazuli into a powder. [2] Its lengthy grinding and washing process makes the natural pigment quite valuable—roughly ten times more expensive than the stone it comes from and as expensive as gold.
From a taco trailer to a date night-worthy seafood bistro, these are the restaurants some of the South's best chefs love in their own towns.
The Mystics co-owner’s remarks about the cover garnered backlash from the sports world. Women’s tennis legend Chris Evert, in a reply on X, wrote that Clark “deserves this award because of ...
We tested 10 of the best Dutch ovens, including options from Le Creuset, Staub, Lodge, and more. These are our top recommendations for your kitchen.