查询词典 phosphoric acid

Then add, in the following order, 93±3 mg (0.5 mmol) of ferrocene, 0.35 mL of acetic anhydride, and 0.1 mL of 85% phosphoric acid.

然后按以下的次序，加入93±3 mg (0.5 mmol)的二茂铁，0.35ml的乙酐，和0.1ml 85%的磷酸。

Ferrocene will be acetylated by the action of phosphoric acid* and acetic anhydride*.

二茂铁可以与磷酸*和乙酐*作用而被乙醯化。

They have used Franko Lin and Wilkins's judgment, and supplemented: The phosphoric acid radical constitutes more than two nucleotide chain's skeleton in the screw flank, the direction is opposite; Basic group in spiral inside, 22 correspondences.

他们采用了富兰克琳和威尔金斯的判断，并加以补充：磷酸根在螺旋的外侧构成两条多核苷酸链的骨架，方向相反；碱基在螺旋内侧，两两对应。

It is reported that phosphate rock raw material for the production of phosphoric acid, phosphate rock the world's total reserves of about 45.78 billion tons.

据悉，磷矿是生产磷酸的原料，目前世界磷矿石总储量约457.8亿吨。

In a definite vacuum, the phosphate acid temperature was determined by phosphoric acid concentration.

通过对真空降膜浓缩磷酸脱氟实验表明，操作温度对磷酸的浓缩和深度脱氟效果有显著影响。

On the basis of analyzing flotation principles of phosphate rock ,the plan of using the acidic waste water in wet phosphoric acid plant instead of sulfuric acid to float low content phosphate rock was put forward,and the process parameters was determined by experiments.

通过对磷矿浮选原理的分析，提出了利用湿法磷酸工厂中洗涤磷石膏渣的酸性废水代替传统的硫酸浮选低品位磷矿的方案，并通过实验确定了工艺参数。

Optimal pretreatment conditions of electroless nickel plating for magnesium were decided by many experiments. Phosphoric acid technology was used to instead of acid processing by chromium trioxide and ferric chloride, and excellent coating was obtained by using dipped zinc, cyanide copper, nickel as medium.

通过多次试验确定了镁及镁合金的前处理方案，以磷酸洗的方法代替传统的铬酐加三氯化铁酸洗浸蚀的前处理工艺，配置简单，操作方便，以浸锌层、氰化铜层和中性镍层作为化学镀中间层，得到了结合力良好的化学镀镍层，获得了镁合金表面处理的新突破。

With regard to the common type in, you typically add phosphoric acid, ammonium nitrate and ammonium dihydrogen phosphate, ammonium dichromate, citric acid and gum Arabic and other chemical components; alcohol fountain solution also includes ethanol or isopropanol.

差于普通型的润版液，凡是补充磷酸、硝酸铵、磷酸二氢铵、轻铬酸铵、柠檬酸和阿拉伯胶等化学组不合；酒精润版液还参加乙醇或异丙醇。

In modern chemical engineering, inorganic acids and metal haloids are wildly used as catalysts in esterification, such as sulfuric acid, phosphoric acid and AlCh, SnCU, TiCU.

目前，在工业化生产中，对于酯化反应多采用浓硫酸、磷酸等无机酸或金属卤化物，如AlCl_3、SnCl_4、TiCl_4等作为催化剂。

A production method as defined in claim 2, wherein phosphoric acid, sulfuric acid or carbon dioxide is employed as the neutralizer for neutralizing the catalyst composed of alkaline material contained in the heavy solution.

生产方法所界定的索赔二，其中，磷酸，硫酸或二氧化碳是受雇于作为中和剂为中催化剂组成的碱性物质，载于沉重的解决办法。

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。