solubility region
51actinide element — ▪ chemical element group Introduction any of a series of 15 consecutive chemical elements in the periodic table from actinium to lawrencium (atomic numbers 89–103). As a group they are significant largely because of their radioactivity.… …
52distilled spirit — ▪ alcoholic beverage Introduction also called distilled liquor, alcoholic beverage (such as brandy, whisky, rum, or arrack) that is obtained by distillation from wine or other fermented fruit or plant juice or from a starchy material (such as …
53Carboxylic acid — Structure of a carboxylic acid Carboxylate ion …
54Nanomedicine — Part of a series of articles on Nanomedicine Nanotoxicology Nanosensor Nanoshell Nanorobotics See also Nanotechnology This box …
55X-ray crystallography — can locate every atom in a zeolite, an aluminosilicate with many important applications, such as water purification. X ray crystallography is a method of determining the arrangement of atoms within a crystal, in which a beam of X rays strikes a… …
56Polychlorinated biphenyl — PCBs redirects here. For printed circuit boards, see printed circuit board. Labelling transformers containing PCBs …
57Boric acid — Boric acid …
58Cannabis (drug) — Marijuana redirects here. For other uses, see Marijuana (disambiguation). For the plant genus, see Cannabis. Cannabis …
59Biogenic silica — (BSi) is the equivalent to the terms opal, biogenic opal, and amorphous opaline silica. BSi is essential to many plants and animals. Chemically, BSi is hydrated silica (SiO2• n H2O).Diatoms in both fresh and salt water extract silica from the… …
60test — 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,… …
