查询词典 acid salt

A kind of more effective viscosifier can improve the viscosity of acid solution, reducing the mass transfer velocity of hydronium H+ towards the rocks surface, thereby decrease the filtrate loss of acid solution and the reaction rate between acid and salt, lengthen the distance of acid penetration.

向酸液中加入良好的稠化剂能提高酸液粘度，降低氢离子向岩石壁面的传质速度，因而降低酸液滤失和酸盐反应速率，增加了酸液的有效作用距离，提高了酸化效果。

Mainly engaged in fine chemicals, chemical reagents precious metals, silver nitrate, the acid chloride, potassium cyanide-gold, Sulfite the salt, molecular Silver, silver, industrial ethanol, chemical reagents sulfuric acid, hydrochloric acid, nitric acid, ethanol and 95 percent ethanol and chemical reagents and other electronic products research and production.

主要从事精细化工，贵金属化学试剂，硝酸银，氯金酸，氰化亚金钾，亚硫酸金盐，分子银浆，银粉，工业无水乙醇，化学试剂硫酸，盐酸，硝酸，无水乙醇，95%乙醇等电子和化学试剂产品研究与生产。

After pretreatment with Ca(NO3)2,W7 and TFP in improving and blocking Ca2+*CaM messenger system, membrane damage in strawberry leaf was relief by Ca(NO3)2treatment, at the meanwhile, salt damage index was reduced, the content of prolinc and chlorophyll were enhanced, Pn, EVAP and GS were improved, ABA content in root and leaf was reduced, the content of ZTJAA, GA and ZT/ABA were enhanced, the content of unaturated fatty acid increased, whereas, saturated fatty acid content in leaf and root was reduced, the rate between unaturated fatty acid and saturated fatty acid and index of unaturated fatty acid were enhanced.

在Ca(NO_3)_2、W7和TFP喷叶预处理促进或阻碍Ca~(2+)·CaM信使系统传导后，发现Ca(NO_3)_2处理能减轻叶片的膜伤害，降低盐害指数，增加脯氨酸含量和叶绿素含量，提高净光合速率、蒸腾速率、气孔导度，降低根系和叶片中的ABA含量，增加ZT、IAA和GA含量和ZT/ABA比值；提高叶片和根系中的UFA含量、U/S比值和IUFA，降低根系和叶片中的SFA含量。

The costs of abietic acid separating with A amine salt method and B amine salt method were 1/5 and 1/3 of cost separating with di-n-amylamine salt reported in the literature respectively.

同时研究了以酸异构化、高温异构化和微波辅助酸异构化松香制备枞酸含量较高的异构化松香的实验条件，以异构化松香为原料，采用多种方法分离提纯枞酸，得到最佳分离提纯条件。

The isomerization of resin acid was studied by HCl catalysis method, high temperature catalysis method and microwave-assisted method. Separation of abietic acid was analyzed with recrystallization method and many organic amine salt methods; Using abietic acid separated from resin acid as raw materials, 6 compounds of abietic-type resin acid derivetives were synthesized.

从产率、纯度和成本等方面分析对比了改进的二戊胺盐法、A胺盐法、B胺盐法和文献报道的二戊胺盐法分离提纯枞酸；以得到的枞酸为原料，进行氧化合成，得到6种枞酸的氧化衍生物，通过柱分离得到2种枞酸氧化衍生物纯品，并测试了其抑菌和对家蝇的拒食活性。

Sodium5sulfoisophthalic acid dimethyl ester was prepared by sulfonation of mC 6H 4 2 with chlorosulphonic acid , treatment of the 5sulfoisophthalic acid with methanol to esterify the -CO 2H groups and separation of the product in the form of sodium salt of sulfonic acid.

研究了由氯磺酸和间苯二甲酸经磺化及酯化反应合成间苯二甲酸二甲酯磺酸钠盐的工艺方法，探讨了投料比、反应温度、催化剂用量和反应时间对产物的影

Experimental results indicate that the reduction of chemical oxygen demand were 40%, 38%, 12%, 50%, and 73% for β-naphtho1, salt R, dihydroxy salt R, acid red, and wastewater, respectively when the reactions had run for 4 h at a pH of 1.7. In comparison, the COD reduction of-naphtho1 and salt R were 10.2% and 16.2%, lower than 23.4% and 18.1% with H2O2, while the Fenton reaction time was 1 h.

当pH=1.7、反应4h时，β-萘酚、R盐、二羟基R盐、酸性红、实际废水的化学需氧量去除率分别可达40%、38%、12%、50%和73%；对比实验显示，反应时间为1h时，β-萘酚和R盐的COD去除率分别为10.2%和16.2%，而用H2O2则分别为23.4%和18.1%。

The adsorption properties of 2-naphthalenesulfonic acid, p-tuluenesulfonic acid, p-chlorobenesulfonic acid and 4, 4'-dinitrostilibene-2, 2'-disulfonic acid onto the macroporous weak base anion-exchange resins were investigated. The influence of pH, salt and temperature on the adsorption equilibrium was also studied.

本论文以芳香磺酸化合物为研究对象，系统地研究了大孔弱碱性阴离子交换树脂对其的吸附行为，考察了温度、pH值、盐含量等因素对树脂吸附性能的影响。

MPH plastic magnetic pump complies with JB/T7742-1995Standard for Small Magnetic Transmission Centrifugal Pump. Its flow-through parts adopt PPS with corrosion resistance to most acid, alkali and salt (except oxidable acid like strong sul-furic acid, nitric acid and aqua regia). Its performance is close to the chemical performance of F4, which can resist to most organic solvents under 100℃, especially to the mixture of gas and carbinol. Thus it is an ideal pump for acid and alkali industries.

MPH型塑料磁力泵符合JB/T 7742-1995《小型磁力传动离心泵》标准，过流部件采用聚苯硫醚，不受大多数酸、碱、盐的侵蚀(除氧化性酸如浓硫酸、硝酸和王水等)，其性能接近于聚四氟乙烯的化学性能，在100℃以下能耐大多数有机溶剂，特别能耐汽油和甲醇的混和液，是酸碱工业中的理想用泵。

Results indicated that semidried mei preserved by reused brine or regenerated salt have higher values in acid, soluble solids, and salt contents than those prepared from fresh salt. However, there is no significant difference in sensory evaluation. These results implied that the reuse of waste brine is feasible.

研究结果显示以废液再腌渍的梅胚在可滴定酸含量、可溶性固形物含量、盐度等方面均较高，但官能品评方面则无明显差异，因此将废盐液重复使用於梅胚腌渍的构想初步可行，且再生盐亦可於二次腌渍时利用。

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。