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Anyang

(Encyclopedia)Anyang än-yäng [key], city (1994 est. pop. 458,400), N Henan prov., China, on the Beijing-Guangzhou RR, in a cotton-growing area. It is an agricultural and trade center with textile mills, coal mine...

Hsinchu

(Encyclopedia)Hsinchu or Hsin-chu both: shĭnˈjo͞oˈ [key], city, NW Taiwan. The city and surrounding area are noted for the ...

Ibaraki

(Encyclopedia)Ibaraki ēbäˈräkē [key], prefecture, 2,352 sq mi (6,092 sq km), central Honshu, Japan. ...

Grand Junction

(Encyclopedia)Grand Junction, city (2020 pop. 65,560), seat of Mesa co., W Colo., at the junction of the Gunnison and Colorado rivers; inc. 1891. The shipping and pro...

Glace Bay

(Encyclopedia)Glace Bay glās [key], town, E Cape Breton Island, N.S., Canada. Exploitation of its coal min...

ammonium sulfate

(Encyclopedia)ammonium sulfate, chemical compound, (NH4)2SO4, a colorless-to-gray, rhombohedral crystalline substance that occurs in nature as the mineral mascagnite. It is soluble in water and insoluble in alcohol...

Joliet

(Encyclopedia)Joliet jōˈlēĕtˌ [key], city (1990 pop. 76,836), seat of Will co., NE Ill., on the Des Plaines River; inc. 1857. It is a river port and an industrial shipping center, with limestone quarries and c...

Lota

(Encyclopedia)Lota lōˈtä [key], city (1992 pop. 50,123), S central Chile, a port on the Gulf of Arauco, an inlet of the Pacific Ocean. Founded in the 17th cent., the city grew rapidly after coal was discovered i...

Oskaloosa

(Encyclopedia)Oskaloosa ŏskəlo͞oˈ sə [key], city (1990 pop. 10,632), seat of Mahaska co., SE Iowa, on the North and South Skunk rivers; inc. 1852. It is the trade and processing center of a rich farm and lives...

ash, in chemistry

(Encyclopedia)ash, in chemistry, solid residue of combustion. The chemical composition of an ash depends on that of the substance burned. Wood ash contains metal carbonates (e.g., potassium carbonate) and oxides fo...