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1PAN — Pesticide Action Network (Community » Non Profit Organizations) *** Personal Area Network (Computing » Drivers) *** Personal Area Network (Computing » Networking) ** Panjabi (Regional » Language Codes (3 Letters)) * Partido de Acción Nacional… …
2acid — I (New American Roget s College Thesaurus) adj. sour, bitter, tart, vinegary; acrimonious, cutting, caustic. See sourness, discourtesy. Ant., sweet, bland; basic. II (Roget s IV) modif. 1. [Having the characteristics of an acid] Syn. sharp, tart …
3acid–base reaction — ▪ chemistry Introduction a type of chemical process typified by the exchange of one or more hydrogen ions, H+, between species that may be neutral (molecules, such as water, H2O; or acetic acid, CH3CO2H) or electrically charged (ions, such… …
4Acid — This article is about acids in chemistry. For the drug, see Lysergic acid diethylamide. For other uses, see Acid (disambiguation). Acidity redirects here. For the novelette, see Acidity (Novelette). Acids and Bases …
5chemical industry — Introduction complex of processes, operations, and organizations engaged in the manufacture of chemicals and their derivatives. Although the chemical industry may be described simply as the industry that uses chemistry and… …
6Liquid-liquid extraction — Liquid liquid extraction, also known as solvent extraction and partitioning, is a method to separate compounds based on their relative solubilities in two different immiscible liquids, usually water and an organic solvent. It is an of a substance …
7test — 1. To prove; to try a substance; to determine the chemical nature of a substance by means of reagents. 2. A method of examination, as to determine the presence or absence of a definite disease or of some substance in any of the fluids, tissues,… …
8chemical compound — Introduction any substance composed of identical molecules consisting of atoms (atom) of two or more chemical elements (chemical element). All the matter in the universe is composed of the atoms of more than 100 different chemical elements …
9Aspirin — Asprin redirects here. For the author, see Robert Asprin. Aspirin …
10Etching (microfabrication) — Etching tanks used to perform Piranha, Hydrofluoric acid or RCA clean on 4 inch wafer batches at LAAS technological facility in Toulouse, France Etching is used in microfabrication to chemically remove layers from the surface of a wafer during… …
