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  2. Glass coloring and color marking - Wikipedia

    en.wikipedia.org/wiki/Glass_coloring_and_color...

    Uranium (0.1 to 2%) can be added to give glass a fluorescent yellow or green color. [8] Uranium glass is typically not radioactive enough to be dangerous, but if ground into a powder, such as by polishing with sandpaper, and inhaled, it can be carcinogenic. When used with lead glass with very high proportion of lead, produces a deep red color.

  3. Sea glass - Wikipedia

    en.wikipedia.org/wiki/Sea_glass

    The color of sea glass is determined by its original source, and most sea glass comes from bottles. Besides pieces of glass, colored sea pottery pieces are often also found. [3] The most common colors of sea glass are kelly green, brown, white, and clear that come predominantly from bottles of beer, juices and soft drinks and fishing floats ...

  4. Titanium - Wikipedia

    en.wikipedia.org/wiki/Titanium

    The concentration of titanium is about 4 picomolar in the ocean. At 100 °C, the concentration of titanium in water is estimated to be less than 10 −7 M at pH 7. The identity of titanium species in aqueous solution remains unknown because of its low solubility and the lack of sensitive spectroscopic methods, although only the 4+ oxidation ...

  5. Thermochromism - Wikipedia

    en.wikipedia.org/wiki/Thermochromism

    Thermochromism is the property of substances to change color due to a change in temperature. A mood ring is an example of this property used in a consumer product although thermochromism also has more practical uses, such as baby bottles, which change to a different color when cool enough to drink, or kettles which change color when water is at ...

  6. Half of the Ocean's Surface Has Changed Color. That Shouldn't ...

    www.aol.com/half-oceans-surface-changed-color...

    Human-driven climate change is altering the world’s oceans, including their very color.

  7. Chemical coloring of metals - Wikipedia

    en.wikipedia.org/wiki/Chemical_coloring_of_metals

    In the case of titanium, niobium, and stainless steel, the colour formed is dependent on the thickness of the oxide (which is determined by the anodizing voltage). Chemically coloring a metal is distinct from simply coating it using a method such as gilding or mercury silvering , because chemical coloring involves a chemical reaction, whereas ...

  8. Titanium dioxide - Wikipedia

    en.wikipedia.org/wiki/Titanium_dioxide

    Titanium dioxide, also known as titanium(IV) oxide or titania / t aɪ ˈ t eɪ n i ə /, is the inorganic compound derived from titanium with the chemical formula TiO 2. When used as a pigment, it is called titanium white, Pigment White 6 (PW6), or CI 77891. [4] It is a white solid that is insoluble in water, although mineral forms can appear ...

  9. Ocean color - Wikipedia

    en.wikipedia.org/wiki/Ocean_color

    Ocean color is the branch of ocean optics that specifically studies the color of the water and information that can be gained from looking at variations in color. The color of the ocean , while mainly blue, actually varies from blue to green or even yellow, brown or red in some cases. [ 1 ]