gas persistent

См. также в других словарях:

• Persistent carbene — A stable carbene: isolated 1,3 dimesitylimidazol 2 ylidene in a Schlenk flask (stir bar also present). A persistent carbene (also known as stable carbene or Arduengo carbene) is a type of carbene demonstrating particular stability. The best known …   Wikipedia

• persistent — adjective Etymology: Latin persistent , persistens, present participle of persistere Date: 1826 1. existing for a long or longer than usual time or continuously: as a. retained beyond the usual period < a persistent leaf > b. continuing without… …   New Collegiate Dictionary

• persistent — per·sis·tent tənt adj 1) existing or continuing for a long time: as a) effective in the open for an appreciable time usu. through slow volatilizing <mustard gas is persistent> b) degraded only slowly by the environment <persistent… …   Medical dictionary

• Black powder in gas pipelines — Black powder is a solid contamination in finished product pipelines. Black powder collects in gas piping that are mostly mill scale, from new sales gas pipeline, flash rust from hydrotest water, post internal pipeline corrosion, and could be… …   Wikipedia

• CR gas — Chembox new Name = CR gas ImageFile = CR gas structure.png IUPACName = dibenz [b,f] [1,4] oxazepine Section1 = Chembox Identifiers CASNo = 257 07 8 SMILES = C1(C=CC=C2)=C2OC (C=CC=C3)=C3N=C1 Section2 = Chembox Properties Formula = C13H9NO… …   Wikipedia

• Chemical warfare — For other uses, see Chemical warfare (disambiguation). This article forms part of the series Chemical agents Lethal agents Blood agents Cyanogen chloride (CK) …   Wikipedia

• environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …   Universalium

• climate — /kluy mit/, n. 1. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. 2. a region or… …   Universalium

• United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …   Universalium

• France — /frans, frahns/; Fr. /frddahonns/, n. 1. Anatole /ann nann tawl /, (Jacques Anatole Thibault), 1844 1924, French novelist and essayist: Nobel prize 1921. 2. a republic in W Europe. 58,470,421; 212,736 sq. mi. (550,985 sq. km). Cap.: Paris. 3.… …   Universalium

• Germany — /jerr meuh nee/, n. a republic in central Europe: after World War II divided into four zones, British, French, U.S., and Soviet, and in 1949 into East Germany and West Germany; East and West Germany were reunited in 1990. 84,068,216; 137,852 sq.… …   Universalium