phosphoric anhydride

Taking chloropropylene oxide, phosphoric anhydride, divinyl triamine as raw materials, the stable and hydrophilic flame retardant was synthesized.

以环氧氯丙烷、五氧化二磷和二乙烯三胺为原料，合成一种性能稳定的亲水阻燃剂。

natural mineral phosphates and fertilizers. spectrophotometric determination of phosphoric anhydride (vanado-molybdenum method).

天然矿物磷酸盐和肥料.磷酸酐含量的分光光度法测定.（钒钼酸法）

fertilizers. dissolving of total phosphoric anhydride.

肥料.全部磷酸酐的溶解

fertilizers. blast furnace slag. extraction of phosphoric anhydride soluble in citric acid reagent.

肥料.托马斯炉渣.从柠檬酸试剂中提取溶解的磷酸酐

fertilizers. extraction of phosphoric anhydride soluble in water and in ammonium citrate.

肥料.溶于水和柠檬酸铵的磷酸酐的提取

the synthetic process of ester exchanging fish oil phosphate based on phosphoric anhydride as phosphorylating material was studied in the paper. factors influencing synthesis and detection of phosphate were analyzed in detail.

本文以P2O5为磷酸化试剂，对酯交换鱼油磷酸酯合成工艺进行了研究，详细分析了影响磷酸酯合成和检测的因素。

fertilizers, ground natural mineral phosphates. extraction of phosphoric anhydride soluble in formic acid reagent.

肥料.粉未状天然矿磷酸盐，溶于甲酸试剂的磷酸酐的提取

rapid determination of active phosphoric anhydride in diammonium phosphate by gravimetric method

磷酸二铵中有效磷的重量法快速测定

the paper studied the esterification process between ricinus oil and phosphoric anhydride as well as influences to the reaction by making up prescription of materials and temperature.

研究了以蓖麻油与磷酐为原料、合成蓖麻油磷酐酯中的酯化反应过程，考察了原料配比、反应温度对酯化反应的影响。

The Method of Flowing Injection Analysis for Phosphoric Anhydride in the Productive Process of NPK Compound Fertilizers

流动注射分析法对复合肥中五氧化二磷的分析

natural mineral phosphates. dissolving of the total phosphoric anhydride.

天然矿物磷酸盐.全部磷酸酐的溶解

natural mineral phosphates and fertilizers. spectrophotometric determination of phosphoric anhydride (molybdenum blue method).

天然矿物磷酸盐和肥料.磷酸酐含量的分光光度法测定.（钼兰法）