单词 | trihalomethane |
释义 | > as lemmastrihalomethane trihalomethane n. Brit. , U.S. [halo- comb. form2] any of the compounds formed by the substitution of halogen atoms for three of the hydrogen atoms of methane.ΘΚΠ the world > matter > chemistry > elements and compounds > hydrogen > [noun] > compounds > sulphuretted > formed by substitution of halogen atoms trihalomethane1968 1968 Chem. Abstr. 68 744/1 The abs. intensity, A, of the ir [sc. infrared] absorption band corresponding to the vibration ν-(CH) of the trihalomethanes has been related to the electronegativity of the halogen groups and to the charge σ of the C atom. 1975 Jrnl. Amer. Water Works Assoc. 67 644/3 The four trihalomethanes were not found or were present in low concentrations in the raw waters tested. 1989 What Food? Sept. 7/2 Trihalomethanes (THMs)..are formed when untreated water containing organic matter is disinfected with chlorine. < as lemmas |
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