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  2. Byzantium (color) - Wikipedia

    en.wikipedia.org/wiki/Byzantium_(color)

    Deep reddish purple. B: Normalized to [0–255] (byte) The color Byzantium is a particular dark tone of purple. It originates in modern times, and, despite its name, it should not be confused with Tyrian purple ( hue rendering ), the color historically used by Roman and Byzantine emperors. The latter, often also referred to as "Tyrian red", is ...

  3. Shades of purple - Wikipedia

    en.wikipedia.org/wiki/Shades_of_purple

    Shades of purple. There are numerous variations of the color purple, a sampling of which is shown below. In common English usage, purple is a range of hues of color occurring between red and blue. [1] However, the meaning of the term purple is not well defined. There is confusion about the meaning of the terms purple and violet even among ...

  4. List of reagent testing color charts - Wikipedia

    en.wikipedia.org/wiki/List_of_reagent_testing...

    List of reagent testing color charts. It is advised to check the references for photos of reaction results. [1] Reagent testers might show the colour of the desired substance while not showing a different colour for a more dangerous additive. [2] For this reason it is essential to use multiple different tests to show all adulterants.

  5. Blue bottle experiment - Wikipedia

    en.wikipedia.org/wiki/Blue_bottle_experiment

    Blue bottle reaction video. The blue bottle experiment is a color-changing redox chemical reaction. An aqueous solution containing glucose, sodium hydroxide, methylene blue is prepared in a closed bottle containing some air. Upon standing, it spontaneously turns from blue to colorless due to reduction of methylene blue by the alkaline glucose ...

  6. Reagent bottle - Wikipedia

    en.wikipedia.org/wiki/Reagent_bottle

    A dark glass bottle with ground glass plug. Reagent bottles, also known as media bottles or graduated bottles, are containers made of glass, plastic, borosilicate or related substances, and topped by special caps or stoppers. They are intended to contain chemicals in liquid or powder form for laboratories and stored in cabinets or on shelves.

  7. Tyrian purple - Wikipedia

    en.wikipedia.org/wiki/Tyrian_purple

    The Royal purple or Imperial purple was probably used until the time of Augustine of Hippo (354–430) and before the demise of the Roman Empire. Dye chemistry [ edit ] Variations in colours of "Tyrian purple" from different snails are related to the presence of indigo dye (blue), 6-bromoindigo (purple), and the red 6,6'-dibromoindigo.

  8. List of fictional diseases - Wikipedia

    en.wikipedia.org/wiki/List_of_fictional_diseases

    While the exact effects of the disease are not described, a scene at the end of the episode shows the results – Manny is driven to madness and totally ransacks the area outside the shop, before using a hot water bottle as a loincloth, grabbing a flaming torch and painting "Eat Me" on his stomach, whilst jumping on the roof of an abandoned car.

  9. Born in the purple - Wikipedia

    en.wikipedia.org/wiki/Born_in_the_purple

    The Byzantine emperor Constantine VII Porphyrogenitus in a 945 carved ivory. Traditionally, born in the purple [1] (sometimes "born to the purple") was a category of members of royal families born during the reign of their parent. This notion was later loosely expanded to include all children born of prominent or high-ranking parents. [2]