環已烷 的英文怎麼說
中文拼音 [huányǐwán]
環已烷
英文
hexamethylene-
The most important chemistry of dithianes, however, lies in their ability to act as a masked carbonyl group.
然而二硫雜環已烷的最重要的性質是它作為一個被掩蔽的羰基。Standard specification for benzene for cyclohexane feedstock
環已烷原料用苯的標準規范Chemical reagent. cyclohexane
化學試劑環已烷It is sparingly soluble in water, less soluble in ethanol and cyclohexane, insoluble in fats and fat solvents.
它少量溶於水，較小溶於乙醇和環已烷，不溶於脂肪和脂肪劑。By using sterically hindered, electron - rich alkylphosphines and n - heterocyclic carbenes ( nhc ), this process has encompassed a broad range of substrates including ketones, aldehydes, esters, amides, malonates, nitrocompounds, nitriles and sulfones
隨著大位阻、富電子烷基膦和氮雜環卡賓（ nhc ）為配體的催化體系的出現，該類反應的底物已從酮擴展到醛、酯、酰胺以及含酸性氫的化合物如丙二酸酯、硝基化合物、腈、碸等。A number of recent variations have further demonstrated the utility of the 1, 3 - dithiane system
幾種最近的變體進一步闡明了1 ， 3 -二硫雜環已烷體系的用途。A number of recent variations have further demonstrated the utility of the 1, 3-dithiane system.
幾種最近的變體進一步闡明了1，3-二硫雜環已烷體系的用途。The result shows that the sources of pollutant mainly include non - point - source, line - source and point - source, with nh ( superscript + subscript 4 ), no ( superscript - subscript 3 ), so ( superscript 2 - subscript 4 ), phenanthrene, bhc, fe and mn mainly from non - point - source, nh ( superscript + subscript 4 ), hg, cd, cod, phenanthrene, bhc mainly from line - source, and so ( superscript 2 - subscript 4 ), dimethoate and cn ( superscript - ) from point - source
研究結果表明，地下水污染源有面源污染、線源污染、點源污染；其中屬于面源污染的污染物主要有氨氮、硝氮、硫酸根、菲、六氯環已烷、鐵和錳；屬于線源污染的污染物主要有氨氮、汞、鎘、 cod 、菲、六氯環已烷等；屬于點源污染的污染物有硫酸根、樂果、氰化物。分享友人