查询词典 chromic

In the presence of acetic acid and polyethylene glycol, chromic anhydride and acenaphthene react under mild condition and acenaphthene can completely convert into acenaphthenone .

在醋酸、聚乙二醇存在下，铬酸酐和苊在温和的条件下反应，苊可以完全转化为苊酮。

Acenaphthenone was prepared by the oxidation of acenaphthene in the presence of chromic anhydride , acetic acid and polyethylene glycol as a phase transfer catalyst under mild reaction conditions with high yields.

研究了在铬酸酐、冰醋酸和相转移催化剂聚乙二醇存在下苊的氧化反应，较温和的条件可高产率地得到苊酮。

Well, we'll ship the bichromate in steel drums and the chromic anhydride in oil cans.

嗯，我们会把重铬酸盐用钢桶装，而无水铬酸则用油罐装。

Ammonium bichromate:Salt formed by neutralising chromic acid with ammonia.

重铬酸铵：氨与铬酸中和所产生的盐。

The main products are sodium bichromate, chromium hydroxide,chromic anhydride, chrome oxide green, basic chrome sulfate , potassium dichromate etc. Tested by the authoritative organization, all the products meet with the standard of GB.

主导产品有重铬酸钠、铬酸酐、氧化铬绿、碱式硫酸铬、氢氧化铬等，产品经国家化学产品监督检验部门年检、统检、抽检，均优于国家标准规定的优级品、一级品、合格品质量等级指标。

The most sophisticated exterior touch is a thin chromic bow that runs from the headlamp to the C-pillar along the belt line, a brightwork meteor across the car's firmament. Lovely.

最优美的外部装饰是沿着腰线从前大灯延伸到C柱的一条细细的弓形镀铬线条，就像流星一样划过车身，魅力十足。

With a fixed capital of RMB 80 million yuan, the company mainly produces sodium dichromate (with an annual output of 20 thousand tons), chromic anhydride (with an annual output of 5000 tons), potassium dichromate (with an annual output of 1000 tons), and oxidized chrome green (with an annual output of 3000 tons).

云南省陆良化工实业有限公司坐落在四季如春的云南省曲靖市陆良县西桥工业区，是滇、桂、黔三省唯一的铬化工生产公司，公司拥有固定资产8000万元，主要生产产品有：2万吨／年重铬酸钠、5000吨／年铬酸酐、1000吨／年重铬酸钾、3000吨／年氧化铬绿。

Using H2SO4 as acidulant,chromic sulfate with high purity was obtained by crystallization,which was applied to leather industry as chrome tanning agent .

将电镀废水中的六价铬还原成Cr，用化学沉淀法和絮凝法将其转化为Cr3沉淀，通过硫酸酸化，结晶为高纯硫酸铬，作为皮革工业的铬鞣剂。

Chromic trioxide and chromium hemitrioxide are determined with iodometry, the coefficient of variation of chromic trioxide is 0.056%, and the recovery of marked compound is 99.82-99.83%; the coefficient of variation of chromium hemitrioxide is 1.45%,and the recovery of marked compound is 98.55-99.26%; iron is determined by complexometric titration, the coefficient of variation of iron is 1.73%, and the recovery of marked compound is 99.12-99.23%;sulfate is determined by complexometric titration, the coefficient of variation of sulphate is 0.16%, and the recovery of marked compound is

Analysis Of The Chromium Electroplating Wastewater By Oxidation-reduction And Complexometric Titration-化学工程与工艺-本文采用氧化还原滴定法与络合滴定法对镀六价铬的废水中铬酸酐，三氧化二铬，铁和硫酸根的含量进行了测定：铬酸酐和三氧化二铬用碘量法测定，铬酸酐的变异系数为0.056%，加标回收率为99.82-99.83%，三氧化二铬的变异系数为1.45%，加标回收率为98.55-99.26%；铁用络合滴定法测定，其变异系数为1.73%，加标回收率为99.12-99.23%；硫酸根用络合返滴定法测定，其变异系数为0.16%，加标回收率为

Chromic dermatitis: A skin affliction resulting from attack on human tissues by salts of chromium and chromic acid.

铬毒皮肤炎：人体产皮肤组织被铬盐和铬酸感染而引致的皮肤病。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。