compounds造句

Direct alkoxylation of aromatic compounds is virtually unknown.

" Freon:Trademark for any of several organic compounds containing fluorine (fluorocarbons) and sometimes chlorine (chlorofluorocarbons, or CFCs)."

Significant advances in defining the effect of specific compounds on children have been made in recent years.

Use oxygen-compatible threading compounds, such as Teflon tape, on systems for use in oxygen or oxidizer service.

They found that it was composed of various aromatic compounds and sulfides in addition to large quantities of carbon.

Smoke rose into the night sky from one of the attacked compounds, and a helicopter circled overhead, scanning the ground with a searchlight.

Nondegradable pollutants are not broken down by natural processes. Examples of nondegradable pollutants are mercury, lead and some of their compounds and some plastics.

Knowing which neurotransmitters are implicated in the disease gives drug makers precise targets around which to design batter anti-schizophrenia compounds.

"Many sugars are aldehydes, as are several natural and synthetic hormones and compounds such as retinal (a derivative of vitamin A, important in vision) and pyridoxal phosphate (a form of vitamin B6). "

"Neoprene: Any of a class of elastomers (rubberlike synthetic organic compounds of high molecular weight) made by polymerization of the monomer 2-chloro-1,3-butadiene and vulcanized (cross-linked, like rubber), by sulfur, metallic oxides, or other agents."

"The aquatic food chain can concentrate organic mercury compounds in fish and seafood, which, if eaten by humans, can affect the central nervous system, impairing muscle, vision, and cerebral function, leading to paralysis and sometimes death."

Any of a group of organic compounds, including the fats, oils, waxes, sterols, and triglycerides, that are insoluble in water but soluble in common organic solvents, are oily to the touch, and together with carbohydrates and proteins constitute the principal structural material of living cells.