Phthalic anhydride is irritant to tissue and should be handled with care.
邻苯二甲酸酐对细胞组织有刺激性，使用时要小心。
OBJECTIVE To study the feasible synthesis method of poly-sebacic anhydride.
目的研究聚癸二酸酐适宜的合成方法。
Succinic acid dehydration is one of industrial methods to produce succinic anhydride.
丁二酸脱水法是工业生产丁二酸酐的方法之一。
Phthalic anhydride residue is the by product from oxidation of naphthalene oro xylene.
苯酐渣系萘氧化或邻二甲苯氧化的副产物。
The kinetics of polyesterification of phthalic anhydride with diethylene glycol was investigated.
对邻苯二甲酸酐和二甘醇的聚酯化动力学进行了研究。
In this subject, gluten was modified by both wet heat treatment and succinic anhydride acylation.
本文主要研究了湿热—琥珀酸酐酰化对小麦面筋蛋白进行复合改性。
This paper introduced different kinds of preparation methods and applications of isatoic anhydride.
本文介绍了合成靛红酸酐的各种方法和靛红酸酐的应用。
However, the application of epoxy cured by anhydride in other fields is limited as its brittleness.
然而质脆、抗冲击性差等缺点限制了环氧树脂在其它领域的应用。
Similarly, using diketene to replace mixed anhydride or acid chloride, intermediate enol 5 May be obtained.
而由混合酸酐或双烯酮代替酰氯，中间体也可能是烯酮或烯醇5。
Hardness and temperature, current density, chromium content of sulfuric acid anhydride and are closely related.
铬层软度与温度、电流密度、铬酐及硫酸的含量都有紧密亲密的干系。
It was deduced from FTIR that the condensation reaction was caused by a reaction of ketone group with anhydride.
根据FTIR测定结果，推测在反应中可能发生酮与酸酐的缩合反应。
Production: monomer boron, Danhuapeng, boron anhydride, without detectable; Hydrochloric acid, Yean, ammonia water.
生产：单体硼，氮化硼，硼酐，无水硼砂；盐酸，液氨，氨水。
Production: monomer boron, Danhuapeng, boron anhydride, without detectable; Hydrochloric acid , Yean , ammonia water.
生产：单体硼， 氮化硼， 硼酐，无水硼砂；盐酸，液氨，氨水。
Introduced the market demand of anhydride of domestic and international benzene and price case and development trend.
介绍了国内外苯酐的市场需求和价格情况以及发展趋势。
TG analysis shows that, with temperature increasing, anhydride formation is occurred first, and confirmed by the FTIR bands.
TG分析结果表明，随温度的升高，首先形成了酸酐，这可由FTIR光谱确定。
It was showed that the plant system modification could prolong condensator life and enhance the yield of phthalic anhydride.
结果表明，装置系统改造能提高切换冷凝器的寿命，提高苯酐收率。
An optimizing control configuration for oxidizing reaction in the production of phthalic anhydride is proposed in this paper.
本文给出一种苯酐生产中氧化反应收率的最优控制方案。
The performance of the reaction using an acid anhydride as an acyl donor was compared with that using its corresponding free acid.
对分别使用酸酐和相应的游离羧酸作酰基给体时的反应性能进行了比较。
The supply and demand for trimellitic anhydride at home and abroad were analyzed, and previewed its demand in several years to come.
分析了国内外偏苯三酸酐的市场供需状况，并对我国今后几年的需求进行了分析和预测。
A high performance resin matrix for resin transfer moulding (RTM) was prepared by applying low viscosity anhydride to cure epoxy resin.
通过选用低黏度液体酸酐为环氧树脂的固化剂，制得了一种用于rtm的高性能树脂体系。
In basic condition E ring was converted into the cyclohexanedicarboxylic anhydride to form purpurin 18 derivatives by the air oxidation.
在碱性条件下，通过空气氧化将E环转变为环己二羧酸酐形成红紫素18甲酯衍生物；
In this article was discussed the formulation and process of synthesis of rosin-modified unsaturated polyester of non-phthalic anhydride.
本文讨论了无苯酐合成松香改性不饱和聚酯树脂的配方和工艺。
Any of a group of chemical compounds formed by a reaction of phthalic anhydride with a phenol from which certain synthetic dyes are derived.
酞一组化合物之一，由邻苯二甲酸酐和酚反应而成，某些合成染料是由此提取的。
The proper content of O2. cyclohexane and CO2 could increase the conversion rate of cyclohexane and the selectivity of butanedioic anhydride.
适当的氧含量、环己烷浓度和气相中CO_2浓度均能提高催化剂对环己烷的转化率和琥珀酸酐的选择性。
All these drawbacks, however, could be effectively overcome in a semi batch reaction system into which propionic anhydride was continuously fed.
然而，在连续流加丙酸酐的半批式反应系统中，所有这些缺点均可有效地克服。
Casting resin used with anhydride hardeners for making insulators and switchgear components of high mechanical strength, for class 'f' Insulation.
与酸酐类固化剂组合的浇铸树脂，用于绝缘体，开关等，有高的机械强度和F级的绝缘性能。
The reaction process and curing mechanism were basically identical to the curing reaction of bisphenol A epoxy resin with anhydride in the presence of accelerator.
固化反应过程及固化机理与促进剂作用下酸酐固化双酚A型环氧树脂的反应基本相同。
The reaction process and curing mechanism were basically identical to the curing reaction of bisphenol A epoxy resin with anhydride in the presence of accelerator.
固化反应过程及固化机理与促进剂作用下酸酐固化双酚A型环氧树脂的反应基本相同。
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