查询词典 chromium

Hardness and temperature, current density, chromium content of sulfuric acid anhydride and are closely related.

铬层软度与温度、电流密度、铬酐及硫酸的含量都有紧密亲密的干系。

The two companies are integrated enterprises specialized in the production of spice, API, leather, building chemical products, and rubber. We have rich production experience, advanced production equipment, considerable technological force to produce products of top class quality. Our production and business concept is "service and credit first". We have invested 25 million RMB yuan in our companies and have totally 108 employees, 25% of whom are medium-level and senior technicians. We produce series products of Purple Mink brand including the spice: Raspberry ketone, Piperonal, Anisaldehyde, 99% isosafrole, 99% safrole; APIs: Diphenylmethanol, 4-Octyloxyphenol, 2,3-Dihydrofuran; leather chemical products: XD Alkaline chromium sulphate, XD Liming agent; building materials: productivity of 15000 tons of naphthalene series high-efficient high-concentration water reducing agent and 8000 tons of environment-friendly aliphatic water reducing agent; rubber chemical products: F101 Composite resin rubber sulfidizer. The annual sales amount is 80 million RMB.

本公司生产产品涉及香料、医药原料、皮革化工、建材化工、橡胶化工综合性化工企业，具有生产经验丰富、生产设备先进、技术力量雄厚、产品质量一流，服务、信誉第一的生产经营理念，资本投入2500万元，公司员工108人，各类中、高级技术人材占总人数的25%，生产的"紫貂"牌系列产品主要有香料类：覆盆子酮、洋茉莉醛、天然大茴香醛、99%异黄樟素、99%黄樟素，医药原料类：二苯甲醇、4-辛氧基苯酚、2，3-二氢呋喃，皮化类：XD碱式硫酸铬、XD浸灰助剂，建材化工类：萘系列高效、高浓减水剂15000吨、绿色环保型脂肪族减水剂8000吨的母体生产力，橡胶化工类：F101复合树脂橡胶硫化剂系列产品。

Over the past 30 years, the wood preservative to cca-based treatment, and its main chemical composition of the chromium copper arsenate.

过去30年来，木料防腐以cca处理法为主，其主要化学成分为铬化砷酸铜。

A method for the determination of lead, arsenic, chromium ,copper and zinc in soil is described.

建立了土壤中铅、砷、铬、铜和锌含量的连续快速测定方法。

Chromium ; extraction separation ; atomic absorption method

铬； 萃取分离；原子吸收法

The percentage of Cyanide, phenol, mercury and chromium which have little effect on water quality is small and the variation tendency is slow. The percentage of Ammoniac azote, TP, TN, Cd, potassium permanganate index and fluoride which have much effect on water quality is big and the variation tendency is great. The percentage of DO, BOD5, petrochemical compounds and lead lies in the mean place between two guidelines above, which plays a normal role in contributing to the water quality of Yuehai, but the variation tendency is obvious.

选取了15个参数作为评价因素，其中，氰化物、挥发酚、汞、六价铬等指标的权重较小，对水质变化的总体影响不大，并且年度变化趋势较平缓；氨氮、总磷、总氮、镉、高锰酸盐指数以及氟化物等指标在阅海湿地水质总体评价中所占比重较大，直接影响水道水质；DO、BOD5、石油类、铅等指标的权重介于上述指标的中间。

Two ionpair chromatographic methods for the determination of chromium in basic sample solution s are described in this paper.

提出了两种测定碱性样品溶液中铬的离子对色谱方法。

Chromium hydroxide is bright green pigment prepared by the calcination of a bichromate with boric acid at 500'C.

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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 reduction thermodynamics of Na 2CrO 4 and chromium oxides in the process of sintering and ironmaking is studied,and the simulating experiments in the laboratory and industrial experiments in 600 m 3 blase furnace are carried out.

介绍了铬渣用作炼铁熔剂的基本思想，研究了烧结－炼铁工艺中Na2CrO4和铬氧化物还原的热力学，并进行了实验室模拟试验和600m3高炉的工业试验。

He and Nina moved to California and lived at 2005 Ivar Street, Apt.

他和Nina搬到加州，并在2005年伊瓦尔街，公寓生活。

Droperidol （ potently inhibits transfected HERGchannels and this is the probable mechanism for QT prolongation.

氟哌利多有效地抑制了转染的 HERG 钾通道，可能是 QT 间期延长的机制。