phosphorus 专八

phosphorus pentahalides

五卤

Phosphoric sulfide;Phosphorus pentasulfide;

名称 五硫二;

In this paper,the relation of heterotrophic bacteria to nitrogen and phosphorus in marine environment is studied by adding nitrogen and phosphorus to the seawater in mesocosm.

利用海洋围隔生态系统实验装置,向海水中施加不同浓度的氮,研究海洋异养细菌与海水环境中氮、的关系。

Conclusions Phosphorus pentasulfide could cause damages to eyes of...

结论五硫二对作业工人眼部有损伤。

Now, supernutrition is the first problem in Dianchi, and the environment of the lake deteriorate gradually for more total phosphorus and total nitrogen was input.

滇池是整个流域污物唯一的汇,这也是其难以治理的原因。

The results show that the phosphorus partition ratio of the slagsteel increases with the increase of oxidability,basicity of slag.

结果表明：在炉渣钢水中的分配比随炉渣氧性的增加而增加；

Four new triazol organic phosphorus compounds with the general formula(I) have been prepared.

合成了四种标题合物，探讨了其合成方法。

Phosphorus eutectic and carbon compound with boracium were found in the structure of rubbing-pair material when reasonable amounts of the elements of phosphorus and boracium were added.

研究结果表明:合理添加、硼等元素,在合金铸铁摩擦配副材料中形成适量的共硼碳物,可明显提高其耐磨减摩性;

main products include anisole & derivateves,phosphorus oxychloride,phosphorus trichloride,sulfur chloride,chloroacetyl chloride,phenetole,etc.

生产苯甲醚、苯乙醚、氯乙酰氯、一氯硫、三氯、三氯氧、氯代特戊酰氯等各类中间体。

2. Tri(2,4,6-tribromophenyl) phosphite was synthesized with phenol, brome and phosphorus trichloride in the presence of pyridine.

本文介绍了在吡啶存在下,以苯酚、溴三氯为原料合成三(2,4,6-三溴苯酚)亚酸酯的方法.收藏指正

Hexahydroxy N-containing heterocyclic compound without sulfur and phosphorus was synthesized and its structure was characterized.

合成了无硫、的六元氮杂环合物添加剂。

The water eutrophication is caused by the incessant accumulation of nitrogen and phosphorus in water and excessive propagation of a few of algal and hydrobios.

摘要水体中氮营养物质不断积累，部分藻类及水生生物的过度繁殖，导致了水体的富营养。

Surface water is generally coloured and turbid.When total phosphorus is analyzed by luminometer, the monitoring result will be somewhat high.

地面水一般带色且浊，采用光度法分析水样中总时，会使测定结果偏高。

Synthesis of polyethenoxyether phosphate using polyethenoxyether as initiator and using phosphorus pentoxide as parkerizing reagent, and its application were studied.

本文介绍了以聚氧乙烯醚为起始剂，五氧二为剂合成聚氧乙烯醚酸酯的过程；并且对其应用也简要地加以说明。

On the basis of acetone-phosphomolybdate method to detect phosphorus, the microplate method was developed for the determination of activity units of phytase.

摘要在丙酮法测的基础上，在酶活测定时引入微板法。

The optimized conditions for phosphorus recovery as hydroxyapatite from wastewater by synthetic tobermorite through seeded crystallization were studied in this paper.

以合成雪硅钙石为种,探索了用结法以酸钙形式回收废水中的适宜条件。

The biodegradability of tapioca starch cross linked with phosphorus oxychloride was studied according to the half-vivo model by using micropopulation symbiotic cocultures.

利用微生物群在半生物体内模型中系统研究了三氯氧交联淀粉的生物降解性能。

The paper is a study of the rheologic character of phosphate di-starch which is using sodium trimetaphosphate and phosphorus oxycholride as crosslinking agent by rotating viscometer.

研究了以三偏酸钠酰氯为交联剂制成的凝胶淀粉。

- Planting some aquaplants such as aloe and eelgrass in the built marsh land and use its denitrification and phosphorus removal function to strengthen the purifying of Suzhou river water by its.

·在人工湿地内种植芦苇、苦草等水生植物，利用其能有 效脱氮除的功能，强苏州河水的净效果；

the main products include chloride alkaline,phosphorus puoducts,organic intermediates,pesticide,aromatizer,hromine products of six series in more than ten varieties.

产品有氯碱、农药、精细工、溴制品、制品、饲料添加剂、香料香精、酰胺等系列。