查询词典 phosphoric

Included here are organic phosphinic, phosphonic and phosphoric acid derivatives and their thiophosphorus counterparts.

以磷作为主要成分的化合物，包括有机膦，磷酸及磷酸衍生物及其硫代磷酸相似物。

The cellulose fiber is partially reacted with phosphoric acid impregnated to form phosphonate ester at first.

纤维素与浸渍的磷酸部分生成磷酸酯键，但它们在160℃以上逐渐分解，纤维上残留少量偏磷酸类化合物。

A process as claimed in claim 5 wherein the acid groups are selected from the group consisting of carboxylic acid, phosphoric acid, polyphosphoric acid, phosphonic acid, sulphuric acid and sulphonic acid groups.

作为其中的酸群体从羧酸组成的小组选出的索赔5索赔的过程中，磷酸，聚磷酸，磷酸，硫酸和磺酸基团。

Monododecylphosphate was prepared by esterification of lauryl alcohol with phosphoric acid(mass fraction 85%) on cesium phosphotungstate catalyst.

以磷钨酸铯盐为催化剂，由月桂醇和85%的磷酸直接酯化合成单十二烷基磷酸酯，考察了带水剂种类、反应时间、磷钨酸铯盐催化剂中的铯取代数、催化剂用量和月桂醇与磷酸摩尔比等条件对磷酸转化率及单十二烷基磷酸酯选择性的影响。

In this cone, phosphoric acid medium, a violet-red compound was formed between chromotropic acid and formaldehyde which is photometrically determined at 570nm.

在浓磷酸介质中，甲醛与变色酸反应生成紫红色化合物，于570nm波长处作光度测定。

The optimal synthesis with polyphosphoric acid was put forward to produce high purity of phosphoric acid monoester,and its application was described.

介绍了磷酸单酯的各种合成工艺路线，并比较了它们的优缺点，提出了聚磷酸法是合成高纯度磷酸单酯的最佳路线。

A flame retarding and smoke suppressing agent polyphosphoric cyanamine urea was prepared with phosphoric acid,melamine and urea as the raw materials.

以磷酸、三聚氰胺、尿素为原料制备阻燃抑烟剂聚磷酰氰胺脲，然后将其应用于TDE-85#环氧树脂中，以顺丁烯二酸酐为固化剂制备了阻燃抑烟环氧树脂。

Mono(2-hydroxy propyl)phosphate was synthesized from 1, 2-epoxy propane and phosphoric acid in the propanone solvent under the conditions of reaction temperature 30 ℃, reaction time 2 h.

摘 要：以环氧丙烷、磷酸为原料合成了磷酸单( 2-羟基丙基)酯，并以磷酸单(2-羟基丙基)酯和三氧化二锑为原料合成了磷酸单(2-羟基丙基)酯锑。

Silicoaluminophosphate (SAPO–5) molecular sieves were synthesized by the hydrothermal method, using metakaolin with a certain degree of activity as the silicon and aluminum sources, phosphoric acid as the phosphorus source and triethylamine com- bined with hydrofluoric acid as the template agents.

以具有一定活性的偏高岭土兼作铝源与硅源、正磷酸作磷源、三乙胺和氢氟酸为复合模板剂，用水热方法合成了磷酸硅铝分子筛(SAPO–5)。

In this paper the electrochemical reduction mechanism of selenious acid(H2SeO3) in phosphoric acid solution was studied by rotating ring-disc electrode and cyclic voltammetry techniques.

文摘：利用旋转环－盘电极方法开结合循环伏安技术研究了磷酸溶液中亚硒酸的电化学还原机理。

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。