boron anhydride

用法例句

The molten hydrolytic reaction between sodium chloride and boron oxide at high temperature was studied.

研究了高温熔融状态下水蒸气与氯化钠、硼酐的水解反应。

Triisopropyl borate was synthesized with high yield from 2 propanol and boron oxide by using calcium hydride as drying agent to remove resultant water.

采用氢化钙作为脱水剂,以硼酐及异丙醇为原料合成了硼酸三异丙酯,该方法具有成本低、操作简便、条件温和、产率高的优点。

Synthesis of anhydrides from acylchlorides under microwave irradiation;

微波辐射下由酰氯合成酸酐

Exploration of the Structure of CTC Formed by Unsaturated Acid Anhydrides and Phenothiazine;

不饱和酸酐-吩噻嗪电荷转移络合物结构的探讨

The amidation and esterification of different cyclic anhydrides with aniline and phenol gave different major products,and the routes were optimized.

结果表明,环酐的分子结构直接影响反应结果,当酸酐分子存在共轭结构时以N-芳基内酰胺为主要产物。

Study of chloroacetic acid production by chlorination of acetic acid in the presence of acid anhydride catalyst;

酸酐催化乙酸氯化制一氯乙酸的研究

In this paper,the various kinds of accelerators which were used for curing epoxy resin with acid anhydride,and the accelerative mechanism in the epoxy resin curing system were introduced.

评述了几类用于酸酐固化环氧树脂的促进剂及其在酸酐/环氧体系中的固化促进机理。

It was studied that decolorizing method of brown Silkworm separated protein by acetic peracid and modification of the decolorizing product by acid anhydride and zirconium sulfate.

研究了褐变蚕蛹分离蛋白脱色方法及其酸酐、硫酸锆改性。

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。

Acetylacetone was synthesized by using boron trifluoride etherate as catalyst.

采用三氟化硼-乙醚络合物为催化剂,由丙酮和乙酸酐一步法反应合成乙酰丙酮。

Of, relating to, derived from, or containing boron.

硼的硼的、与硼有关的、来源于硼的或含硼的

sulphuric anhydride

三氧化硫, 硫(酸)酐

sulphurous anhydride [ oxide ]

二氧化硫, 亚硫酐

mixed or impregnated with borax.

与硼酸混合，或注入硼酸。

PREPARATION OF 4-HYDROXYPHTHALIC ANHYDRIDE BY AN ALKALI MELT PROCESS FROM 4-CHLOROPHTHALIC ANHYDRIDE;

4-氯代苯酐碱熔融法制备4-羟基苯酐

A salt or an ester of boric acid.

硼酸盐一种硼酸盐或硼酸酯

Borax is the compound commonly applied to the soil to correct boron deficiency.

硼砂是矫正土壤缺硼的常用硼化合物。

The effect of borax ordered in 0.2%>0.3%.

硼肥的效果是硼砂(0.2％)＞硼砂(0.3％)。

Chemical reagent-Acetic anhydride

GB/T677-1992化学试剂乙酸酐

polyvinyl methyl ethermaleic anhydride

聚乙烯甲基醚／马来酸酐

determination of hydroxyl value-acetic anhydride method

羟值的测定-乙酐法

ethoxylated sorbitan

羟乙基化山梨糖醇酐

sorbitan fatty acid ester

山梨糖醇酐脂肪酸酯

xylitan monostearate

木糖醇酐单硬脂酸酯

sorbitan monostearate

山梨醇酐单硬脂酸酯

production line and technology for manufacturing phthalic anhydride

苯酐生产技术及设备