Chemistry, Physical
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SPEC: SPEC qualif; as NIM coord, no qualif; Manual 29.7 |
Chemistry, Physical Categories.
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Adsorption - The condensation of gases, liquids, or dissolved substances on the surfaces of solids. It includes adsorptive phenomena of bacteria and viruses as well as of tissues treated with exogenous drugs and chemicals. |
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Anisotropy - A physical property showing different values in relation to the direction in or along which the measurement is made. The physical property may be with regard to thermal or electric conductivity or light refraction. In crystallography, it describes crystals whose index of refraction varies with the direction of the incident light. It is also called acolotropy and colotropy. The opposite of anisotropy is isotropy wherein the same values characterize the object when measured along axes in all directions. |
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Corrosion |
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Electrochemistry - The study of chemical changes resulting from electrical action and electrical activity resulting from chemical changes. |
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Hydrogen Bonding - A low-energy attractive force between hydrogen and another element. It plays a major role in determining the properties of water, proteins, and other compounds. |
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Hydrogen-Ion Concentration |
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Hydrophobicity - The property of substances of reduced affinity for or repulsion of water. |
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Ion Exchange - Reversible chemical reaction between a solid, often an ION EXCHANGE RESIN, and a fluid whereby ions may be exchanged from one substance to another. This technique is used in water purification, in research, and in industry. |
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Membranes, Artificial - Artificially produced membranes, such as semipermeable membranes used in artificial kidney dialysis, monomolecular and bimolecular membranes used as models to simulate biological membranes. These membranes are also used in the process of guided tissue regeneration. |
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Molecular Weight |
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Osmolar Concentration - The concentration of osmotically active particles in solution expressed in terms of osmoles of solute per liter of solution. Osmolality is expressed in terms of osmoles of solute per kilogram of solvent. |
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Particle Size |
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Permeability - Property of membranes and other structures to permit passage of light, heat, gases, liquids, metabolites, and mineral ions. |
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Phase Transition - A change of a substance from one form or state to another. |
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Photochemistry |
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Precipitation |
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Radiochemistry |
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Solubility |
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Specific Gravity |
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Surface Properties |
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Viscosity |
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Volatilization |
Chemistry, Physical Definitions and Terms
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