Disinfectant
111Mercury (element) — gold ← mercury → thallium Cd ↑ Hg ↓ Cn …
112Andrew Tait — Andrew Tait, a citizen of United States of America and is internationally recognized as [“The Environmentalist”] . He is recognized as an entrepreneur, business advisor, outdoors man and public speaker he is sought as an expert on the ecology and …
113borax — borax1 /bawr aks, euhks, bohr /, n., pl. boraxes, boraces /bawr euh seez , bohr /. a white, water soluble powder or crystals, hydrated sodium borate, Na2B4O7·10H2O, occurring naturally or obtained from naturally occurring borates; tincal: used as …
114chlorophenol — /klawr euh fee nawl, nol, klohr /, n. Chem. 1. any of three isomers having the formula C6H5ClO, derived from chlorine and phenol, used chiefly as intermediates in the manufacture of dyes. 2. any derivative of phenol of which one or more hydrogen… …
115copper — copper1 /kop euhr/, n. 1. a malleable, ductile, metallic element having a characteristic reddish brown color: used in large quantities as an electrical conductor and in the manufacture of alloys, as brass and bronze. Symbol: Cu; at. wt.: 63.54;… …
116cresol — /kree sawl, sol/, n. any of three isomeric compounds having the formula C7H8O, usually derived from coal tar and wood tar, and used chiefly as a disinfectant. Also called methyl phenol. Cf. tricresol. [1860 65; cres (irreg. from CREOSOTE) + OL2]… …
117phenol — phenolic /fi noh lik, nol ik/, adj. /fee nawl, nol/, n. Chem. 1. Also called carbolic acid, hydroxybenzene, oxybenzene, phenylic acid. a white, crystalline, water soluble, poisonous mass, C6H5OH, obtained from coal tar, or a hydroxyl derivative… …
118environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
119Iodine — An essential element in the diet used by the thyroid gland to make thyroid hormones. The two most important thyroid hormones are thyroxine (T4) and triiodothyronine (T3). Thyroxine (T4) has four iodine molecules attached to its structure, while… …
120benzalkonium chloride — A mixture of alkylbenzyldimethylammonium chlorides in which the alkyls are long chain compounds (C8 to C18); a surface active germicide for many pathogenic nonsporulating bacteria and fungi. Aqueous solutions of this agent have a low surface… …
