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  2. Electric water boiler - Wikipedia

    en.wikipedia.org/wiki/Electric_water_boiler

    Japanese Zojirushi brand "Thermo Pot" electric kettle hot water dispenser Wall mounted, unpressurized electric boiler with 5 liters maximum capacity. An electric water boiler, also called a thermo pot or tea urn [1] in British English, is a consumer electronics small appliance used for boiling water [2] [3] and maintaining it at a constant temperature in an enclosed reservoir.

  3. Isoelectric point - Wikipedia

    en.wikipedia.org/wiki/Isoelectric_point

    At pH values above the ... 6.2–8.1 (7) Fe 3 O 4 [19] 6.5–6.8 CeO 2 [19 ... The following list gives the isoelectric point at 25 °C for selected materials in ...

  4. Cyanidin - Wikipedia

    en.wikipedia.org/wiki/Cyanidin

    It has a characteristic reddish-purple color, though this can change with pH; solutions of the compound are red at pH < 3, violet at pH 7-8, and blue at pH > 11. In certain fruits, the highest concentrations of cyanidin are found in the seeds and skin. [citation needed] Cyanidin has been found to be a potent sirtuin 6 (SIRT6) activator. [2] [3]

  5. How Much Does It Cost to Replace a Water Heater? - AOL

    www.aol.com/lifestyle/much-does-cost-replace...

    We break down exactly how much it costs to replace a water heater and install a new fixture, as well as the types of water heaters and their features. ... Electric water heaters cost between $600 ...

  6. Sulfite food and beverage additives - Wikipedia

    en.wikipedia.org/wiki/Sulfite_food_and_beverage...

    Sulfites used in food processing (but not as a preservative) are required to be listed if they are not incidental additives (21 CFR 101.100(a)(3)), and if there are more than 10 ppm in the finished product (21 CFR 101.100(a)(4)) On July 8, 1986, sodium bisulfite (and other sulfites : "The chemicals affected by the order are sulfur dioxide ...

  7. Anthocyanin - Wikipedia

    en.wikipedia.org/wiki/Anthocyanin

    Anthocyanins may be used as pH indicators because their color changes with pH; they are red or pink in acidic solutions (pH < 7), purple in neutral solutions (pH7), greenish-yellow in alkaline solutions (pH > 7), and colorless in very alkaline solutions, where the pigment is completely reduced. [57]