acid-treated

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• Acid gas — is natural gas or any other gas mixture which contains significant amounts of hydrogen sulfide (H2S), carbon dioxide (CO2), or similar contaminants. The terms acid gas and sour gas are often incorrectly treated as synonyms. Strictly speaking, a… …   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

• Acid mine drainage — Yellow boy in a stream receiving acid drainage from surface coal mining. Acid mine drainage (AMD), or acid rock drainage (ARD), refers to the outflow of acidic water from (usually abandoned) metal mines or coal mines. However, other areas where… …   Wikipedia

• treated gem — ▪ gemology also called  Treated Stone,         genuine gem material whose colour has been artificially enhanced or produced to increase the value of the stone; staining, heat treatment, and irradiation are among the treatments used.… …   Universalium

• Treated — Treat Treat, v. t. [imp. & p. p. {Treated}; p. pr. & vb. n. {Treating}.] [{OE}. treten, OF. traitier, F. traiter, from L. tractare to draw violently, to handle, manage, treat, v. intens. from trahere, tractum, to draw. See {Trace}, v. t., and cf …   The Collaborative International Dictionary of English

• acid-washed — also acid wash adjective Date: 1987 of, relating to, or being a fabric or a garment that has been treated with a bleach solution to produce a streaked or discolored appearance …   New Collegiate Dictionary

• acid-washed — adjective or acid wash ¦ ̷ ̷  ̷ ̷ ¦ ̷ ̷ : of, relating to, or being a fabric or a garment that has been treated with a bleach solution to produce a faded appearance * * * /as id wosht , wawsht /, adj. (of a denim garment) processed with a bleach… …   Useful english dictionary

• acid-fast — adjective (histology) of bacteria that retain their stain when treated with an acidic solution …   Wiktionary

• acid-fast bacillus — noun a class of rod shaped bacteria which, after being stained, retain the stain when treated with an acidic solution …   Wiktionary

• Gamma-Hydroxybutyric acid — γ Hydroxybutyric acid Systematic (IUPAC) name 4 Hydroxybutanoic acid …   Wikipedia

• Perfluorooctanoic acid — IUPAC name pentadecafluorooctanoic acid …   Wikipedia