查询词典 azo

As an azo-dyes, Sudan Ⅲ do not dissolve in water, slightly soluble in ethanol, soluble in chloroform, oils and fats, mineral oil, acetone and benzene and so on. It is difficult biodegradable and volatile organic compound.

苏丹Ⅲ作为一种偶氮染料不溶于水，微溶于乙醇，易溶于氯仿、油脂、矿物油、丙酮和苯等，属于难挥发、难生物降解性有机物。

It produces azo colration such as acid orange II, acid media black A, acid media black B.

1制造偶氮染料：如酸性橙II、酸性媒介黑A、酸性媒介黑R。

The color removal of azo dye Acid Orange Ⅱ using potassium permanganate was studied. The effect of Acid Orange Ⅱ and potassium permanganate concentration, initial pH conditions, and reaction time were investigated.

本文研究了高锰酸钾对偶氮染料酸性橙Ⅱ的脱色效果，考察了酸性橙Ⅱ初始浓度、高锰酸钾投加量、初始pH条件、反应时间的影响。

Through taken the measurements of pH, TOC, UV-Vis spectra and high-performance liquid chromatograph in the degrading process of solution ,it was found that the COD of dye solution increased, pH continuing declined and TOC reduced gradually. The UV-Vis spectra and high-performance shown that though dye molecules had been destroyed, Strong Chromophore Azo Double Bond of dye was certainly under attack, the big conjugated system was vandalized and dye molecules were decolorized degradation, but they were not completely changed into carbon dioxide and other inorganic matter by mineralization, it appeared accumulation of aromatic ring and double benzene nucleus, so it is thus evident that complete destruction of aromatic ring is more difficult than the double benzene.

通过测定直接大红染料脱色过程中的溶液pH、TOC、紫外可见光谱图和高效液相色谱图可知，在脱色处理时间(6h)范围内，染料溶液的COD值增大， pH值持续下降，TOC值逐渐降低，结合紫外可见光谱图和高效液相色谱图，说明染料分子虽然已经遭到破坏，染料分子内强生色基团偶氮双键确实遭到攻击，大的共轭体系被破坏，染料分子被脱色，却没有完全被彻底矿化成二氧化碳等无机物，出现了芳环和萘环结构的累积现象，可见完全破坏芳环比破坏偶氮双键发色团更困难。

Since the starting work that azo molecule has reversible cis-trans structure changing, Study on the polymer possessing azobenzene and polymer is booming increasingly liquid crystal, these days it is an attractive topic of nonlinear optics and its application.

自从发现偶氮分子在光照下能够发生可逆顺反异构这一开创性工作以来，对含偶氮类聚合物及聚合物液晶材料非线性光学等性质的研究日益活跃，是目前国内外非线性光学及其应用研究的一个热门话题。

Since the starting work that azo molecule has reversible cis-trans structure changing, Study on the polymer possessing azobenzene and polymer is booming increasingly liquid crystal, these days it is an attractive topic of nonlinear optics and its application.

摘要自从发现偶氮分子在光照下能够发生可逆顺反异构这一开创性工作以来，对含偶氮类聚合物及聚合物液晶材料非线性光学等性质的研究日益活跃，是目前国内外非线性光学及其应用研究的一个热门话题。

The azo-dyes perform an optically induced cis-trans isomerization.

氮基染料会发生光致羰基配合物异构化。

The product poses a chemical risk because the dark blue thermal collar inside the sleeping bag was found to yield 75 mg/kg of the azo-colourant 3,3'- dimethoxybenzidine.The product does not comply with the REACH Regulation.

通报的理由为该睡袋不符合欧盟 REACH 法规（化学品注册、评估、授权和限制法规），深蓝色睡袋头部含偶氮着色剂3，3'-二甲氧基联苯胺75 mg/kg ，有化学风险。

Because the biochemical degradation can degrade azo dye more efficiently and with less possibility of re-polluting, therefore it will be the beacon for developing of dye wastewater disposing technique.

一般而言，生化处理法具有对底物的降解较彻底，二次污染小等特点，可能成为一种处理偶氮染料废水的较好方法。

From the investigation into the visible spectra and performances on textile of these azo dyes, as acid dye, it was found that these dyes had deep coloring effects on dyeing wool or silk, and five of which could dye wool into black one at 3% o. w. f., especially the diazo dye derived from 2, 8-diamino-10-methoxy-5, 10-dihydrophenophosphazine 10-oxide and acet-J-acid, it could not only dye wool into black one but each fastness of the obtained dyed sample was good.

对这些已知结构的染料进行浸染染色，结果发现，它们作为酸性染料，在羊毛及丝绸纤维上染色时，能够获得比一般偶氮染料不宜获得的深色效应，其中5支染料得到黑色染样，尤其由2，8-二氨基-10-甲氧基-5，10-二氢磷杂吖嗪与乙酰J-酸形成的双偶氮染料得到黑色染样，其各项牢度都比较理想。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。