Commercial+carbonate+of+potash
21Sodium silicate — E550 redirects here. For the Italian locomotive, see FS Class E550 Sodium silicate …
22Alum — This article is about the chemical compound. For other uses, see Alum (disambiguation). Bulk alum Alum (  / …
23algae — algal, adj. /al jee/, n.pl., sing. alga / geuh/. any of numerous groups of chlorophyll containing, mainly aquatic eukaryotic organisms ranging from microscopic single celled forms to multicellular forms 100 ft. (30 m) or more long, distinguished… …
24Africa — /af ri keuh/, n. 1. a continent S of Europe and between the Atlantic and Indian oceans. 551,000,000; ab. 11,700,000 sq. mi. (30,303,000 sq. km). adj. 2. African. * * * I Second largest continent on Earth. It is bounded by the Mediterranean Sea,… …
25Natural 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 …
26Ammonium bicarbonate — Ammonium bicarbonate …
27mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… …
28Fertilizer — Tennessee Valley Authority: Results of Fertilizer demonstration 1942 …
29In-situ leach — In situ leaching (ISL), also called in situ recovery (ISR) or solution mining, is a process of recovering minerals such as copper and uranium through boreholes drilled into the deposit. The process initially involves drilling of holes into the… …
30Cerium — lanthanum ← cerium → praseodymium ↑ Ce ↓ Th …
