Ads
related to: synthetic indigo dye powder
Search results
Results from the WOW.Com Content Network
Indigo, space-filling. 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 Baeyer–Drewsen indigo synthesis (1882) is an organic reaction in which indigo is prepared from 2-nitrobenzaldehyde and acetone [1] [2] The reaction was developed by von Baeyer and Viggo Drewsen in 1880 to produce the first synthetic indigo at laboratory scale. This procedure is not used at industrial scale.
Indigo: Indigo blue Vat blue 1 73000 indigoid 482-89-3: Indigo carmine (synthetic) Indigo Acid blue 74 73015 indigoid 860-22-0: Indigo carmine (natural) Natural blue 2 Food blue 1 75781 natural 860-22-0: Indocyanine green: Cardiogreen cyanine 3599-32-4: Induline: Solvent blue 7 50400 azine 8004-98-6: Iodine green 42556 triarylmethane 33231-00-4 ...
American pharmaceutical giants, even at that time, like Dow, DuPont, and others began to produce dyes and were extremely successful with simple sulphur and vat dyes. Dow Chemical developed a synthetic process for indigo in 1915, and American industry and universities worked together to reverse engineer German chemical production secrets.
The first synthetic dye, mauve, was discovered serendipitously by William Henry Perkin in 1856. [11] [12] [13] The discovery of mauveine started a surge in synthetic dyes and in organic chemistry in general. Other aniline dyes followed, such as fuchsine, safranine, and induline. Many thousands of synthetic dyes have since been prepared. [14 ...
Egyptian blue: a synthetic pigment of calcium copper silicate (CaCuSi 4 O 10). Thought to be the first synthetically produced pigment. 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 ...
Ads
related to: synthetic indigo dye powder