亚磷酸

More than 10 varieties: the phosphate series; phosphite and organic phosphorus products; and type catalyst and pharmaceutical intermediates.

十多个品种：即磷酸盐系列；亚磷酸和有机磷类产品；和类催化剂及医药中间体。

Ltd.. In order to reduce the producing cost and enhance the competition of market of Glyphosate, it is essential to increase the yield of Dimethyl Phosphite.

提高亚磷酸二甲酯的合成收率是降低草甘膦的生产成本、提高品质和增强市场竞争能力的关键和研究热点。

More than 10 varieties: the phosphate series; phosphite and organic phosphorus products; and the type of catalyst and pharmaceutical intermediates.

十多个品种：即磷酸盐系列；亚磷酸和有机磷类产品；和类催化剂及医药中间体。

Based on orthogonal test, the factors influencing the synthesis of di-n-propyl phosphite, such as reaction temperature, reaction time and molar ratio of reactant, were investigated.

通过正交优化试验，考察了温度、时间和物料配比对二正丙基亚磷酸酯的合成收率的影响。

A method for preparing dimethyl phosphite was developed from methanol and phosphorous trichloride .

研究了用三氯化磷和甲醇合成亚磷酸二甲酯的方法。

In addition, according to the experiment data, the thesis compares and evaluates the two methods, concluding that the route with trimethyl phosphite as raw material is easier to be industrialized.

此外，根据文献资料，所得到的实验数据结果，对亚磷酸三甲酯和甲基二氯化膦为原料合成草铵膦的实验方法进行了分析总结，并加以比较评价。

The main products are: organic alcohol, phosphite, chloride, cyclohexyl chloride, Propionyl chloride, such as more than 10 varieties.

主要产品有：有机醇类、亚磷酸、乙酰氯、环已甲酰氯、丙酰氯等十多个品种。

The synthesis of monomethylhydrazine was investigated with dimethyl phosphite as methylating agent.

以亚磷酸二甲酯为甲基化试剂，一步合成了单取代的一甲基肼。

Studies on the reactions of isomerized products of butaduene and isoprene iron complexes with triphenyl phosphine and triphenyl phosphite

丁二烯-和异戊二烯二羰基铁配合物的异构化产物与三苯膦和亚磷酸三苯酯的反应研究

More than 10 varieties: the organic alcohol series; phosphite series; acetate series, such as organic chemical products; and the type of catalyst and pharmaceutical intermediates.

十多个品种：即有机醇系列；亚磷酸系列；醋酸酯系列等有机化工产品；和类催化剂及医药中间体。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。