查询词典 naphthol

Through experiment, we have found that the combination of naphthol/sodium naphtholate is a high efficient bifunctional catalyst for direct aldol reaction.

通过实验，我们发现并筛选出了一组活性较高的β-萘酚和其钠盐双功能催化剂，该方法不需要预先活化Aldol反应的底物就能直接反应，且反应可在室温进行，条件温和，速度快，收率高达98%。

Naphthol ethyl ether was sythesized with the ethanol and β-naphthol as materials and aluminium sulfate as catalyst.

介绍了以乙醇和β-萘酚为原料，在硫酸铝Al2(SO43.18H2O催化下合成β-萘乙醚的方法，讨论了反应时间，催化剂用量以及反应物摩尔比对合成的影响，确定了最佳反应条件。

It was proved that host CP44 can recognize the isomers, a-naphthol and β-naphthol by fluorescence probe.

荧光探针表明：主体CP44能对α-萘酚、β-萘酚同分异构体进行分子识别。

An organic compound,C10H7OH,occurring in two isomeric forms,alpha - naphthol and beta - naphthol.

萘酚一种有机化合物，C10H7OH，存在于两种异构形式，α－萘酚和β－萘酚

In this paper, concentration of 300mg/L Naphthol Green-B dyes was used to be treated by white rot fungi. At first, the strain of pc5305 was to be screened for the best decolorization white rot fungus which used to treat Naphthol Green-B from the four different strains.

本文以300mg/L的萘酚绿-B染料为处理对象，首先从四种不同白腐菌中筛选出对萘酚绿-B具最佳脱色作用的pc5305，并对pc5305脱色萘酚绿-B的条件进行了优化。

An organic compound,C10H7OH,occurring in two isomeric forms, alpha - naphthol and beta - naphthol.

酚一种有机化合物，C10H7OH，存在于两种异构形式，α□□酚和β□□酚

Based on theoretical calculation of electronegativity of groups offlotation-reagent and method of infra-red adsorption spectroscopy, the collection andadsorption of α-nitroso-β-naphthol in hematite flotation have been studied. The chemicaladsorption seems to be predominant owing to formation of pentacyclic nitrosyl chelate com-pound by atoms of nitrosyl bond in α-nitroso-β-naphthol together with Fe~(3+) on hematitesurface.

研究了α-亚硝基β-萘酚对赤铁矿的捕收性能及吸附规律，导出了吸附方程和吸附速率方程用药剂基团电负性理论计算以及红外吸收光谱法论述了其作用机理α-亚硝基β—萘酚主要是以N O键合原子与赤铁矿表面的Fe形成N O五元环螯合物而化学吸附。

Inhibition to activated sludge process by 2-naphthol was also investigated by Warburg respirometer to verify the conclusion drawn from Rank Cell respirometer test. 2-Naphthol in low concentration was biodegradable, hence resulted in the acceleration of respiration, while in higher concentration 2-naphthol would dramatically inhibit microorganisms respiration on account of high K〓 and electron density.

用Warburg呼吸仪研究了2-萘酚对活性污泥过程的抑制作用，验证了RankCell呼吸仪的研究结论，发现低浓度下2-萘酚自身能被生物降解而使活性污泥中微生物呼吸速率升高；浓度增加后2-萘酚因良好的脂溶性和强亲核能力而对活性污泥过程产生强抑制。

After the diazotization ,2-aminophenol-4-(2-'carboxy)sulfanil phenylamine was coupled with acetoacetanilide,2-naphthol,1-phenyl-3-methyl-5-pyrazolone,1-naphthol-4-sulfonic acid,separately to get the different diazotized compounds,then complexed with potassium chromium sulfate or cobaltous chloride to obtain the yellow,orange,red,purple,blue and other colour dyestuffs.

2-氨基苯酚-4-(2'-羧基)磺酰苯胺重氮化，分别与乙酰乙酰苯胺、2—萘酚、1-苯基-3-甲基-5-吡唑啉酮、尼文酸、1-乙酰氨基-7-萘酚等偶合，得到不同的偶氮化合物，然后分别与硫酸铬或氯化钴进行络合反应，得到黄、橙、红、紫、蓝多种颜色染料，并进行了毛织品的染色实验。

With water-alcohol as solvent, 1-amino-2-naphthol-4-sulfonic acid was prepared from β-naphthol by nitrosotion, addition, and sulphonation.

摘 要：以β萘酚为原料，在水醇混合溶剂存在下，经亚硝化、加成、磺化制得 1 氨基 2 萘酚 4 磺酸，考察了原料配比、混合溶剂配比、反应时间、反应温度及过滤等因素对反应的影响，确定了优惠工艺条件。

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。