hao123btc
㈠ 幫忙翻譯一段化學專業文字
Double hydroxyurea (DHU) in organic synthesis as a recing agent efficient use of reagents can be used as the use of hydroxylamine. More importantly, the medicine can be used as cancer patients and chemotherapy drugs; in the field of biology can be used as a DNA replication inhibitor, can inhibit the root tip cells of many plant cell division, double hydroxyurea Purex process in the U / Pu separation application. Double hydroxyurea (DHU) is a synthesis of hydroxylamine hydrochloride Triphosgene and response system. Triphosgene dissolved in dioxane, the hydroxylamine hydrochloride dissolved in potassium acetate solution. Third, the use of non-toxic solid gas condenser (BTC) in the alkaline polymerization medium dissociation phosgene, phosgene monomer released by the phosgene molecule reaction with hydroxylamine hydrochloride double hydroxyurea (DHU). Solid at room temperature, phosgene is a solid, relatively stable, even when boiling, only a small amount of decomposition, as a substitute for phosgene, not only low-toxic and easy to use, and the mild reaction conditions, good selectivity and high yield. Alkaline conditions, broken down into two-hydroxyurea hydroxyurea, hydroxyurea hydroxyurea stable than the double
㈡ 成都做區塊鏈的哪家好
現在做曲塊鏈,哪家最好是看不出來,但是取塊鏈是一個技術趨勢
㈢ 星火礦池和魚池哪個好
星火礦池和魚池相比起來,還個魚池好。