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Bromocresol purple ( BCP) or 5′,5″-dibromo-o-cresolsulfophthalein, is a dye of the triphenylmethane family ( triarylmethane dyes) and a pH indicator. It is colored yellow below pH 5.2, and violet above pH 6.8. In its cyclic sulfonate ester form, it has a p Ka value of 6.3, and is usually prepared as a 0.04% aqueous solution.
ISCC–NBS descriptor. Dark grayish brown. B: Normalized to [0–255] (byte) Taupe ( / ˈtoʊp / TOHP) is a dark gray - brown color. The word derives from the French noun taupe meaning "mole". The name originally referred only to the average color of the French mole, but beginning in the 1940s, its usage expanded to encompass a wider range of ...
Purple bacteria or purple photosynthetic bacteria are Gram-negative proteobacteria that are phototrophic, capable of producing their own food via photosynthesis. They are pigmented with bacteriochlorophyll a or b , together with various carotenoids , which give them colours ranging between purple, red, brown, and orange.
Flag of the Governor-General of Fiji (1970-1987) Flag of the Kingdom of Fiji (1871-1874) Civil Ensign of the Kingdom of Fiji (1871-1874) Royal Standard of Fiji (1871-1874) Flag of the Islamic State of Iraq. Flag of Nunatsiavut. Flag of Santiago Metropolitan Region. Flag of Vancouver Island. Flag of Yukon.
Los Angeles County, California, US. Occupation (s) athletic trainer, boxing cornerman, valet, actor. Spouse. Rhoda Palestine (divorced) Children. 2. Drew Bundini Brown (March 21, 1928 – September 24, 1987) was an American assistant trainer and cornerman of heavyweight champion boxer Muhammad Ali. [1]
For practical additive color models, an equal superposition of all primaries results in neutral (gray or white). In the RGB model, an equal mixture of red and green is yellow, an equal mixture of green and blue is cyan and an equal mixture of blue and red is magenta. [1] : 4.2 Yellow, cyan and magenta are the secondary colors of the RGB model.
Contents. Purple Line (CTA) A Loop-bound Purple Line train of 5000-series cars passes Bryn Mawr Avenue. Bus connections at all open stations except Foster, Noyes, and Wellington . The Purple Line of the Chicago "L" is a 3.9-mile (6.3 km) route on the northernmost section of the system. The service normally begins from Linden in Wilmette and ...
The dress. The dress was a 2015 online viral phenomenon centred on a photograph of a dress. Viewers disagreed on whether the dress was blue and black, or white and gold. The phenomenon revealed differences in human colour perception and became the subject of scientific investigations into neuroscience and vision science .