Alkalinity

Science / Chemistry / Alkalinity: A measure of a material's ability to neutralize acids. Alkalinities are usually determined using titration.

Buffer

Science / Chemistry / Buffer: A solution that can maintain its ph value with little change when acids or bases are added to it. Buffer solutions are usually prepared as mixtures of a weak acid with its own salt or mixtures of salt MORE

Ph Scale

Entertainment / Photography / Ph Scale: Numerical system running from 0-14 and used to express the alkalinity or acidity of a chemical solution. 7 is neutral. Solutions with a lower ph value are increasingly acidic, and those with a higher MORE

Reticulation

Entertainment / Photography / Reticulation: Regular crazed pattern created on the emulsion surface of negatives which is caused by extreme changes of temperature or acidity/alkalinity during processing. MORE

Calcium (Ca)

Science / Periodic Table of Elements / Calcium (Ca): Atomic number: 20, Atomic mass: 40.08 g.mol -1, Electronegativity: 1.0, Mass volume: 1.6 g.cm-3 at 20°C, Melting point: 840 °C, Boiling point: 1484 °C, Vanderwaals radius: 0.197 nm, Ionic radius: 0 MORE

Ph

Business / Agriculture / Ph: An expression of the intensity of the basic or acidic condition of a liquid or of soil: the logarithmic scale ranges from 0 to 14, where 0 is the most acid, 7 is neutral, and above 7 is alkaline. Natu MORE

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