sodium ethylene diamine tetracetate
四
酸钠
sodium ethylene diamine tetracetate
四
酸钠
Cu furaldehyde-ethylene diamine Schiff base complex was synthesized with the yield of 63.
合成了一种席夫碱金属络合物——呋喃甲醛铜络合物,收率为63。
Diamine is synthesized of diacid by aminating and hydryzing process etc.。It is an importantly chemical intermediate。
由
元酸通过氨化、
化
工艺合成,是一种重要的化工中间
。
Methods: Five Schiff bases were prepared from piperonal and diamines by condensation reaction.
目的:合成新的双-胡椒醛缩类席夫碱化合物。
Under certain conditions, ophenylene diamine can react with dimethyl sulfate to form, N, N′diaminobenzene with higher production.
邻苯与硫酸
甲酯作用在一定条件下,给出高产率的N,N′-
甲基邻苯
。
According to the ethylene diamine moiety in the structure of some calcium antagonists,we designed and synthesized 5 unreported phenoxybenzamine derivatives.
利用酚苄明结构中氯基的活性,结合一些钙拮抗剂含
结构的特征,设计合成了5个酚苄明衍生物。
Two series of thermotropic liquid crystalline polyureas were synthesized by the copolymerization of benzidine (or o-tolidine),1,6-hexane diamine and 2,4-toluene diisocyanate.
为合成新型热致液晶聚脲,以含液晶基元的联苯(或联邻甲苯
)、1,6-己
、2,4-甲苯
异氰酸酯为原料进行合成。
The first polyimide polymer is prepared with aromatic fluoric diamine and aromatic tetracid dihydride and through a two-step condensation reaction in organic solvent and under the action of catalyst.
第一种聚酰亚聚合物是芳香族含氟
与芳香族四酸
酐,在有机溶剂中,在催化剂的作用下,两步法缩合反应制备得到;
When the complex of anhydrous zinc acetate with 1,5-naphthalene diamine was formed, the anhydrous zinc acetate changed from a bidentate ligand to a unidentate ligand.
在无水酸锌与1,5-萘
形成配位络合物的过程中,无水
酸锌的结构从双齿型转变成单齿型。
3, A chelating agent which forms an easily water-soluble metal chelated compound such as nitrilotriacetate (NTA) or ethylene diamine tetraacetate (EDTA) is incorporated in a detergent composition.
在洗衣粉中掺入螯合剂,例如次氮基三酸酯(NTA)或者是
四
酸酯(EDTA),这些螯合剂易于形成水溶性的金属螯合物。
The system condition of chromatography separating 2,6—2,4—2,3— and 3,4—toluenediamine isomer and the test methods verifying purity for toluene-diamine reference materilas were studied by HPLC.
应用高效液相色谱法研究分离2,6—、2,4—、2,3—和3,4—氨基甲苯异构
的色谱系统条件和检定
氨基甲苯参考物质纯度的试验方法
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