查询词典 phosphoric acid

A process based upon solvent extraction has been developed for the recovery of phosphoric acid from a leaching liquor obtained by decomposition of phosphate rock with sulfuric acid.

本文采用二丁基亚砜作为萃取剂，对于用硫酸分解磷矿而得的粗磷酸进行多级逆流萃取及反萃取，以获得高纯度的磷酸和磷酸盐。

PAN-based carbon fibers were modified by electrochemical treatment using phosphoric acid, sodium hydroxide and ammonium acid carbonate as electrolyte respectively.

分别采用磷酸、氢氧化钠和碳酸氢铵3种电解液对PAN-基碳纤维进行电化学改性处理，研究电解液种类对碳纤维电化学改性效果的影响规律。

It is composed mostly of B vitamins, phosphoric acid, choline, linoleic acid and inositol.

它是组成，其中大部分B族维生素，磷酸，胆碱，亚油酸和肌醇。

Methods: Determining paeoniflorin content by high performance liquid chromatography measurement conditions: mobile phase of acetonitrile -0.4% phosphoric acid solution (volume ratio 13∶87; detection wavelength 230 nm; flow rate 1.0 mL/min; and column temperature 25℃; and determining polysaccharide content by anthrone-sulfuric acid method. The extraction procedure of Langchuangling granule was measured, and the evaluated indexes were the rate of dry extra, contents of the paeoniflorin and the total polysaccharide with L9 (34) orthogonal test and preferential treatment of data.

采用高效液相色谱（high performance liquid chromatography，HPLC）法测定芍药苷含量［测定条件：流动相为乙腈-0.4%的磷酸水溶液（体积比为13∶87）；检测波长230 nm；流速1.0 mL/min；柱温25℃］；采用硫酸-蒽酮法测定总多糖含量，并以干浸膏得率、总多糖含量和芍药苷含量为指标，采用L9（34）正交实验，用综合评分法处理数据优选水提取工艺。

Your goal is to report the molarity of the hydrochloric acid and the molarity of the phosphoric acid in the mixture, with their uncertainties.

你的目标是要回报在混合物中氢氯酸的莫耳浓度和磷酸的莫耳浓度以及它们的不确定度。

The hydrochloric acid and the molarity of the phosphoric acid in the mixture, with theiruncertainties.

氯酸的莫耳浓度和磷酸的莫耳浓度以及它们的不确定度。

In this paper, the composition of zinc phosphating solution used at environmental temperature was researched. The composition is as followings: phosphoric acid 100 mL, monometallic sodium orthophosphate 20 g/L, zinc oxide 25 g/L, bluestone 1 g/L, sodium molybdate 1 g/L, sodium fluoride 1 g/L, tartaric acid 1 g/L.

研究了配制锌系磷化液配方：1 L溶液中加入磷酸100 mL，磷酸二氢钠20 g，氧化锌25 g，硫酸铜1 g，钼酸钠1 g，氟化钠1 g，酒石酸1 g。

The availability and cost of sulfuric acid are highly important factors in the production of wet-process phosphoric acid.

硫酸的货源和价格都是湿法磷酸生产中极为重要的因素。

Results show that phosphoric acid (85%) and sulfuric acid (36%) are better than other catalysts.

结果表明，磷酸和低浓硫酸是木材苯酚液化效果较好的催化剂。

The low-grade phosphate ore s with high impurities of sesquioxide were digested in phosphoric acid and nitric acid.

采用正交实验，研究了高倍半氧化物含量的中低品位磷矿在磷酸与硝酸混酸中的酸解行为，并确定了实验室最佳工艺条件：反应温度65℃，液固比14∶1，磷酸浓度(P2O5)20%，硝酸浓度9。

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。