primary chemical current source

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• Chemical biology — is a scientific discipline spanning the fields of chemistry and biology that involves the application of chemical techniques and tools, often compounds produced through synthetic chemistry, to the study and manipulation of biological systems.… …   Wikipedia

• chemical industry — Introduction       complex of processes, operations, and organizations engaged in the manufacture of chemicals and their derivatives.       Although the chemical industry may be described simply as the industry that uses chemistry and… …   Universalium

• 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

• Chemical weapon proliferation — Nation CW Possession Signed CWC Ratified CWC Albania Known January 14, 1993 May 11, 1994 Burma (Myanmar) Possible January 13, 1993 No …   Wikipedia

• chemical reaction — Any chemical process in which substances are changed into different ones, with different properties, as distinct from changing position or form (phase). Chemical reactions involve the rupture or rearrangement of the bonds holding atoms together… …   Universalium

• chemical compound — Introduction  any substance composed of identical molecules consisting of atoms (atom) of two or more chemical elements (chemical element).       All the matter in the universe is composed of the atoms of more than 100 different chemical elements …   Universalium

• primary — adj. & n. adj. 1 a of the first importance; chief (that is our primary concern). b fundamental, basic. 2 earliest, original; first in a series. 3 of the first rank in a series; not derived (the primary meaning of a word). 4 designating any of the …   Useful english dictionary

• Nonpoint source water pollution regulations in the United States — Nonpoint source (NPS) water pollution regulations are environmental regulations that restrict or limit water pollution from diffuse or nonpoint effluent sources such as polluted runoff from agricultural areas in a river catchments or wind borne… …   Wikipedia

• Ion source — An ion source is an electro magnetic device that is used to create charged particles. These are used primarily within mass spectrometers or particle accelerators.Mass spectrometry In mass spectrometry, an ion source is a piece of equipment used… …   Wikipedia

• Mobile source air pollution — includes any air pollution that is emitted by motor vehicles, engines, and equipment that can be moved from one location to another. Many of these pollutants contribute to environmental degradation and negative human health effects. To prevent… …   Wikipedia

• Registry of Toxic Effects of Chemical Substances — (RTECS) is a database of toxicity information compiled from the open scientific literature without reference to the validity or usefulness of the studies reported. Until 2001 it was maintained by US National Institute for Occupational Safety and… …   Wikipedia