二甲酸

The results indicated that potassium diformate improved average daily gain and feed conversion rate, and the improvement is more in the first period, it also can prevent ablactation stress of the piglet on a certain extent.

研究表明，二甲酸钾改善了仔猪的日增重和料重比，尤其在饲养前期效果明显；二甲酸钾对仔猪的断奶应激有一定预防效果。

Refineesterification with advanced technology and granulation technology, relying on sophisticated production equipment and improve the analytical tools, produces high quality PVC plasticizers, plastic particles and other fine chemical products, including plasticizers Products including phthalate esters, benzene Sanjia esters, adipate esters, maleic acid ester and citric acid ester.

梁溪精化拥有先进的酯化技术和造粒技术，依靠精良的生产设备和完善的分析手段，生产高质量的聚氯乙烯增塑剂、塑料粒子和其它精细化工产品，其中增塑剂产品包括苯二甲酸酯、苯三甲酸酯、己二酯酯、马来酸酯以及柠檬酸酯。

One of the reaction products in the solid state reaction between silver behenate and phthalic acid — di-silver phthalate (Ag2PA) was prepared by liquid deposition method, and was characterized with elemental analysis, ICP-AES and FT-IR.

采用液相沉淀法合成了山嵛酸银与邻苯二甲酸的固相反应产物邻苯二甲酸二银，并通过元素分析、ICP-AES、FT-IR等方法对其进行了表征分析。

Sodium5sulfoisophthalic acid dimethyl ester was prepared by sulfonation of mC 6H 4 2 with chlorosulphonic acid , treatment of the 5sulfoisophthalic acid with methanol to esterify the -CO 2H groups and separation of the product in the form of sodium salt of sulfonic acid.

研究了由氯磺酸和间苯二甲酸经磺化及酯化反应合成间苯二甲酸二甲酯磺酸钠盐的工艺方法，探讨了投料比、反应温度、催化剂用量和反应时间对产物的影

ABSTRACT In this paper, by employing dicarboxylic acids with special conformation, i.

利用几个结构上有特点的二元羧酸，即2，6-吡啶二甲酸、三个异构体苯二甲酸，顺丁烯二酸和4，4'-联苯甲酸作为首要桥基配体，并结合使用含氮中性配。。。

In this thesis, five polydentate ligands including azido, oxalate, terephthalic acid, isophthalic acid and Pyridine-2,6-dicarboxylic acid were used to construct new transition metal complexes (M = Ru, Fe and Zn). Eight new complexes as listed below were synthesized and fully characterized.

本论文以草酸根、叠氮根、对苯二甲酸、间苯二甲酸和吡啶-2，6-二羧酸等含O、N的多齿共轭配体为研究对象，合成了以下八个结构新颖的化合物，并对它们的结构和谱学性质进行了详细的表征。

In this study, poly (PA12T), poly (PA12I) and PA(12T-co -121) were synthesized using terephthalic acid, isophthalic acid with dodecamethylene diamines.

中和成盐的过程中，十二碳二元胺可分别与对苯二甲酸、间苯二甲酸直接进行成盐反应，可以通过电导滴定法来判定等当量点。

The transesterification reaction among poly,poly(ethylene 2,6- naphthalate),and PET／PEN copolymer were studied with1H-NMR.

通过用1H-NMR对聚对苯二甲酸乙二酯与聚2，6-萘甲酸乙二酯、PET/PEN共聚物的共混物酯交换反应的研究，测得了反应速率常数、反应活化能和诱导期。

Part 6 explores the reaction system containing O-phthalate, Mn〓 and α,α'-diimine, and yields six novel complexes 16～20 possessing binuclear and tetranuclear matello-crown aether as well as 1-D linear structures, indicating that O-phthalate is a potentially useful ligand to give manganese species in a discrete form.

研究了邻苯二甲酸/锰/双齿亚胺（2，2'-联吡啶和1，10-邻二氮杂菲）的反应体系，合成出6个新颖的双核、四金属冠醚和一维线性结构的化合物16至20，表明邻苯二甲酸是合成有限核数锰簇的有用配体。

Bis (2-ethylhexyl) phthalate and dibutyl phthalate were obtained from Angelica sinensis for the first time.

结论邻苯二甲酸-2-乙基己酯和邻苯二甲酸二丁酯为首次从当归中获得。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。