英语释义

1. a compound known in various polymeric forms (P2O5)x that is obtained usually by burning phosphorus in an excess of dry air, occurs as a white powder that reacts vigorously and sometimes explosively with water to form phosphoric acids irritating to the skin and mucous membranes, and is used chiefly as a drying agent, as a condensing agent in organic synthesis, and in making phosphoric acids and derivatives

片语

phosphoric anhydride五氧化二磷；[无化] 磷酸酐

Phosphorus pentoxide detection reagent五氧化二磷检测试剂

promoter of phosphorus pentoxide磷助剂

Electronic Grade Phosphorus Pentoxide三氯氧磷

英汉例句

• phosphorus-doped phenolic resin carbon was prepared by low temperature(700 ℃)pyrolysis of thermoplastic phenolic resin containing different amounts of phosphorus pentoxide after curing.

  以添加不同含量五氧化二磷的热塑性酚醛树脂为前驱体，经热固化后升温至70 0℃裂解制备掺磷树脂裂解炭。

• the synthesis of ethoxylated fatty alcohol phosphates prepared by reacting ethoxylated fatty alcohol with phosphorylating agent phosphorus pentoxide was studied.

  以脂肪醇聚氧乙烯醚为起始原料，五氧化二磷为磷酰化剂，对脂肪醇聚氧乙烯醚磷酸酯合成工艺进行了实验研究。

• a series of new type phosphate amphoteric surfactants were synthesized by using ethylene glycol, epichlorohydrin, alkyl tertiary amine and phosphorus pentoxide as raw materials.

  以乙二醇、环氧氯丙烷、烷基叔胺和五氧化二磷为原料，合成了一种磷酸酯两性表面活性剂。

• the compound disinfectant of chlorinated trisodium phosphate contains adjuvants phosphorus pentoxide and surfactant. it is white powder containing 3.44% available chlorine.

  氯化磷酸三钠复方消毒剂含辅助成分五氧化二磷与表面活性剂，为白色粉末，含有效氯3．44％。

• note. (1) the dichloromethane is distilled from phosphorus pentoxide and stored over molecular sieves.

  注意事项（1）二氯甲烷加入五氧化二磷蒸馏，加入分子筛储存。

• phosphorus-doped phenolic resin pyrolysis carbon was prepared by low temperature (600-1600℃)pyrolysis of thermoplastic phenolic resin containing different amounts of phosphorus pentoxide after curing.

  以添加不同含量的五氧化二磷的热塑性酚醛树脂为前驱体，经热固化后升温至600～1600℃下热裂解制备掺磷树脂裂解炭。