Science / Chemistry / Adsorption: Adsorption is collection of a substance on the surface of a solid or a liquid. For example, gases that make water taste bad are strongly adsorbed on charcoal granules in water filters.

Adsorption Indicator

Science / Chemistry / Adsorption Indicator: A substance that indicates an excess of a reactant in a precipitation reaction. For example, dichlorofluorescein is added to an NaCl solution being titrated with silver nitrate. Before the endpoint, e MORE

Adsorption Chromatography

Science / Chemistry / Adsorption Chromatography: A technique for separating or analyzing mixtures that contain at least one component that is preferentially adsorbed by the stationary phase as it moves over it. MORE

Vanadium (V)

Science / Periodic Table of Elements / Vanadium (V): Atomic number: 23, Atomic mass: 50.9414 g.mol -1, Electronegativity: 1.6, Density: 6.1 at 20°C, Melting point: 1910 °C, Boiling point: 3407 °C, Vanderwaals radius: 0.134 nm, Ionic radius: 0. MORE

Erbium (Er)

Science / Periodic Table of Elements / Erbium (Er): Atomic number: 68, Atomic mass: 167.26 g.mol -1, Electronegativity: 1.2, Density: 9.2 at 20°C, Melting point: 1522 °C, Boiling point: 2510 °C, Vanderwaals radius: unknown, Ionic radius: unkn MORE

Thallium (Tl)

Science / Periodic Table of Elements / Thallium (Tl): Atomic number: 81, Atomic mass: 204.383 g.mol -1, Electronegativity: 1.8, Density: 11.71 at 20°C, Melting point: 304 °C, Boiling point: 1473 °C, Vanderwaals radius: 0.182 nm, Ionic radius: 0 MORE


Science / Biology / Absorption: The process by which the products of digestion are transferred into the bodys internal environment, enabling them to reach the cells. MORE