acid clay

japanese acid clay — noun or japanese acid earth Usage: usually capitalized J : fuller s earth occurring in Japan called also Kambara earth …   Useful english dictionary

Acid sulfate soil — Acid sulfate soils are naturally occurring soils, sediments or organic substrates (e.g. peat) that are formed under waterlogged conditions. These soils contain iron sulfide minerals (predominantly as the mineral pyrite) or their oxidation… …   Wikipedia

Acid rain — is rain or any other form of precipitation that is unusually acidic. It has harmful effects on plants, aquatic animals, and infastructure. Acid rain is mostly caused by human emissions of sulfur and nitrogen compounds which react in the… …   Wikipedia

Clay Felker — Clay Schuette Felker Born October 2, 1925(1925 10 02) Webster Groves, Missouri, U.S. Died July 1, 2008(2008 07 01) (aged 82) New York, New York, U.S. Cause of death Throat cancer …   Wikipedia

Acid-free paper — is paper that has a neutral or basic pH (7 or slightly greater). It addresses the problem of preserving documents for long periods. Overview Paper made from wood based pulp that has not had its lignin removed goes yellow and deteriorates over… …   Wikipedia

clay mineral — any of a group of hydrous aluminum silicate minerals, as kaolinite, illite, and montmorillonite, that constitute the major portion of most clays. [1945 50] * * * Any of a group of important hydrous aluminum silicates with a layered structure and… …   Universalium

Clay — For other uses, see Clay (disambiguation). The Gay Head cliffs in Martha s Vineyard consist almost entirely of clay. Clay is a general term including many combinations of one or more clay minerals with traces of metal oxides and organic… …   Wikipedia

clay — clay1 claylike, adj. /klay/, n. 1. a natural earthy material that is plastic when wet, consisting essentially of hydrated silicates of aluminum: used for making bricks, pottery, etc. 2. earth; mud. 3. earth, esp. regarded as the material from… …   Universalium

Clay — /klay/, n. 1. Bertha M. (Charlotte Monica Braeme), 1836 84, English author: originator of a long series of romantic novels. 2. Cassius Marcellus, 1810 1903, U.S. antislavery leader and diplomat. 3. Cassius Marcellus, Jr., original name of… …   Universalium

japanese acid earth — noun see japanese acid clay …   Useful english dictionary

Vitrified clay pipe — (VCP) is pipe made from clay that has been subjected to vitrification, a process which fuses the clay particles to a very hard, inert, glass like state. VCP is commonly used in sewer gravity collection mains because of its reasonable price and… …   Wikipedia