Pure+carbonate+of+potash
31acid–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… …
32Chlorine production — This article presents the industrial and laboratory methodologies to prepare elemental chlorine. Contents 1 Gas extraction 1.1 Mercury cell electrolysis 1.2 Diaphragm cell electrolysis (Bipolar) …
33Mining — This article is about the extraction of geological materials from the Earth. For the municipality in Austria, see Mining, Austria. For the siege tactic, see Mining (military). For name of the Chinese emperor, see Daoguang Emperor. Simplified… …
34Fertilizer — Tennessee Valley Authority: Results of Fertilizer demonstration 1942 …
35Praseodymium — (pronEng|ˌpreɪzioʊˈdɪmiəm or IPA|/ˌpreɪsioʊˈdɪmiəm/) is a chemical element that has the symbol Pr and atomic number 59. Characteristics Praseodymium is a soft silvery metal in the lanthanide group. It is somewhat more resistant to corrosion in… …
36Potassium permanganate — Potassium permanganate …
37Natural dye — Skeins of wool colored with natural plant dyes. Natural dyes are dyes or colorants derived from plants, invertebrates, or minerals. The majority of natural dyes are vegetable dyes from plant sources – roots, berries, bark, leaves, and …
38Gay-Lussac, Joseph-Louis — ▪ French scientist Introduction born December 6, 1778, Saint Léonard de Noblat, France died May 9, 1850, Paris French chemist and physicist who pioneered investigations into the behaviour of gases, established new techniques for analysis, and… …
39test — 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,… …
40Leavening agent — A leavening agent (sometimes called just leavening or leaven) is a substance used in doughs and batters that causes a foaming action intended to lighten and soften the finished product. The leavening agent reacts with moisture, heat, acidity, or… …
