chemical chain


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Noun1.chemical chain - (chemistry) a series of linked atoms (generally in an organic molecule)
chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
closed chain, ring - (chemistry) a chain of atoms in a molecule that forms a closed loop
long chain, long-chain molecule - (chemistry) a relatively long chain of atoms in a molecule
open chain - a chain of atoms in a molecule whose ends are not joined to form a ring
building block, unit - a single undivided natural thing occurring in the composition of something else; "units of nucleic acids"
molecule - (physics and chemistry) the simplest structural unit of an element or compound
References in periodicals archive ?
ISLAMABAD -- Minister for Planning, Development and Reforms Monday informed the Senate Special Committee on China Pakistan Economic Corridor (CPEC) that the government was expecting $8 billion investment in the proposed Gwadar oil city project and petro chemical chain to be developed under CPEC.
The propellants used are highly oxidized and formulated to have a very low carbon composition in their chemical chain. Any residual that may be left in the bore is extremely minimal, thus not fouling like a shotshell normally would.
But when the substance in question is as harmless as a peanut, "the immune system sets off a chemical chain reaction, leading to allergy symptoms." A severe allergic reaction is called anaphylactic shock, and the potentially fatal reaction includes a drop in blood pressure, a constricted airway that makes it hard to breathe, a weak pulse, nausea, hives, dizziness and other symptoms.
All four droplets in the left column are made of the same substance, a chemical chain of 16 carbon and 34 hydrogen atoms.
Microscopic camera imaging is also used here, as is fluorescent chain termination at specific bases as in the Sanger capillary methods; but unlike the use of ddNTPs, this method relies on a reversible chemical chain termination.
The comparison turned up differences in the activity of one inhibitor gene for a chemical chain reaction that had been previously implicated in stimulating neural stem cells.
Washington, November 28 ( ANI ): Researchers at the University of Montreal have identified and "switched off" a chemical chain that causes neurodegenerative diseases such as Huntington's disease, amyotrophic lateral sclerosis and dementia.
This deal supports the company's strategy to expand its Vinyl Acetate Chemical Chain Business.
Among the well-documented impacts of mining is acid rock drainage, a chemical chain reaction created when discarded rock and tailings are exposed to air and water.
At a mixing temperature of about 120[degrees]C, mechanical chain breaking ceases to be the predominant mechanism and chemical chain breaking by oxidative attack becomes more significant.
Having technology licences and production assets across much of the chemical chain, Dow's regional focus is not just on bulk chemicals.