World's First
First in the world that were launched and yet to launch....
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Art Lounge - #TILwithArtLounge Blue is rarely present in nature. About 6,000 years ago, humans began to develop blue colorants. Lapis, a semiprecious stone mined in Afghanistan, became highly prized among the Egyptians. It was at this time that an Egyptian word for "blue" emerged. The stone, lapis lazuli came via foot and donkey on the Silk Road from Afghanistan and was loaded on to ships in Syria sailing to Venice, from where it was traded throughout other parts of Europe. One of the oldest blue pigments, early evidence of ultramarine’s use can be found in Afghanistan in the cave temples of Bamiyan in 6th and 7th centuries AD. The preciousness of the pigment dictated how it was used in painting. Artists employed it sparingly and had to account for the cost of this pigment, which was sold at the best quality and price in Venice. Ultramarine remained an expensive pigment until a synthetic version was invented. Until the 19th century the best blue pigment available to artists was ultramarine. In 1828, the French chemist Jean-Baptiste Guimet was successful to create French ultramarine, it was made from a mix of clay, soda, charcoal, quartz and sulphur. French ultramarine was chemically identical to the prohibitively expensive ultramarine pigment it took its name from. Prussian blue was discovered by chance in 1704 by the Berlin-based colourmaker Johann Jacob Diesbach, when he was creating a red lake pigment to use as a dye. Instead of a bright red, Diesbach produced a purple, and when concentrated it became a deep blue pigment. This accidental discovery provided a new alternative to the only permanent blue pigment available, ultramarine. The chemist Louis Jacques Thénard was commissioned by the French interior minister, Jean-Antoine Chaptal to develop a synthetic substitute for ultramarine. From a mix of cobalt salts and alumina, he produced a pigment called cobalt blue. With a purer tint than Prussian blue, it was immediately taken up by artists. A French artist, produced and patented a new and striking blue known as IKB - International Klein Blue. It was possible with maturity in chemical industry. Tell us your favourite facts about blue! | Facebook
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