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Remazol Brilliant Blue R (RBBR) is an anthraquinone dye used in textile industries. [1] It is a harmful dye and can damage aquatic life and also vegetative life if the contaminated water is used for irrigation. [2] Recent studies have suggested a biological approach to solving this problem through the use of microorganisms to degrade the dye. [3]
Blue was a latecomer among colors used in art and decoration, as well as language and literature. [5] [verification needed] Reds, blacks, browns, and ochres are found in cave paintings from the Upper Paleolithic period, but not blue. Blue was also not used for dyeing fabric until long after red, ochre, pink and purple.
Victoria blue R is a dye with formula C 29 H 32 N 3 Cl. It has a blue colour that changes to yellow at low pH values. Physical data. Fastness. The dye exerts a high light fastness and washing fastness. UV/VIS absorption. Victoria Blue R has an absorption peak of around 610nm.
Raven Rock Mountain is adjacent to Jacks Mountain on the north while Miney Branch flows west-to-east between them in the Potomac River Watershed.The 1820 Waynesboro-Emmitsburg Turnpike with toll station for the 1787 crossroad was constructed between the mountains, where the Fight at Monterey Gap was conducted after the 1863 Battle of Gettysburg (Stuart's artillery at Raven Rock Gap shelled ...
Diamond colors more saturated than this scale are known as "fancy color" diamonds. Any light shade of diamond other than Light Yellow or Light Brown automatically falls out of the scale. For instance, a pale blue diamond won't get a "K", "N", or "S" color grade, it will get a Faint Blue, Very Light Blue or Light Blue grade.
The color periwinkle may be considered a pale tint of purple-blue in the Munsell color system, or a "pastel purple-blue". The color can represent serenity, calmness , winter , and ice . It can also symbolize blossoming friendships , womanhood , [ 3 ] sentimental memories, and everlasting love .
A representation of Johannes Itten's color wheel showing his red, yellow, and blue as primary colors within the central equilateral triangle. [26] Color theorists since the seventeenth century, and many artists and designers since that time, have taken red, yellow, and blue to be the primary colors (see history below).
Navy blue is a dark shade of the color blue.. French sailor in dark blue uniform. Navy blue got its name from the dark blue (contrasted with naval white) worn by officers in the Royal Navy since 1748 and subsequently adopted by other navies around the world.
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