CaCr 2O 7

用法例句

CaCr 2O 7 can be prepared by carbonation of CaCrO 4.

研究了铬酸钙碳化制备重铬酸钙过程中二氧化碳的吸收和铬酸钙溶解对反应过程速率的影响及在不同温度和不同二氧化碳压力下的反应平衡，结果表明：反应速率受二氧化碳的吸收和铬酸钙溶解过程的控制，在铬酸钙固体过量、５０ ℃、二氧化碳压力１。

Dissolution kinetics of calcium chromate and its solubilities measurement;

铬酸钙溶解动力学研究及溶解度测定

There are various processes known for production of calcium chromate, which suffer from inherent disadvantages such as poor quality and severe pollution.

介绍了一种制取铬酸钙的新方法,利用重铬酸钠溶液分解碳酸钙,可以得到高纯度的铬酸钙。

The powders of Ca-doped lanthanum chro-mites prepared by solid state method individually were mixed with the powders of refractory ZrO2, CaO, MgO, SiO2 and Al2O3 in some proportion, and sintered at 1650 and 1700 ℃ after compression moulding, re- spectively, then sintered characteristics of the complex oxides based on Ca-doped lanthanum chromites were studied.

在固相法合成的掺钙铬酸镧微粉中分别加入不同比例ZrO2,CaO,MgO,SiO2和Al2O3微粉,模压成型后经1650和1700 ℃两种温度烧结,用以研究掺钙铬酸镧与其他氧化物的复合烧结行为。

It is shown that both decomposition of organic component and formation of Ca-doped lanthanum chromites powders can be completed in a direct step of the polymeric gel combustion.

采用低温燃烧法制备了掺钙铬酸镧超细粉体。

Pretreatment of arsenical refractory gold concentrate -(I) Leaching by sodium dichromate;

含砷难处理金矿预处理研究——(Ⅰ)重铬酸钠浸出法

The solution of sulfuric acid was added dropwise to the reaction vessel contained 1,3-dichloro-2-propanol,sodium dichromate and water.

将硫酸水溶液滴加到1,3-二氯-2-丙醇与重铬酸钠水溶液的混合物中,在温度23~27℃的条件下搅拌反应5 h,重铬酸钠∶1,3-二氯-2-丙醇=1∶2(摩尔比),此条件下收率为79。

It is shown that calcium carbonate can be decomposed in aqueous sodium dichromate solution and transformed to calcium chromate at ambient pressure and boiling temperature.

介绍了一种制取铬酸钙的新方法,利用重铬酸钠溶液分解碳酸钙,可以得到高纯度的铬酸钙。

A Study on Sintering Behavior and Electric Properties of Ca-doped Lanthanum Chromites;

掺钙铬酸镧的烧结行为及导电性研究

Study on Preparation Process, Structure and Properties of Ca- and Mg-Doped Lanthanum Chromites;

钙镁掺杂铬酸镧的制备工艺、结构及性能研究

Study on the Precursor Systems of Doped Lanthanum Chromite Prepared by Inorganic-organic Sol Methods;

无机—有机溶胶法制备掺杂铬酸镧前驱体系研究

Microstructure and Properties of Lanthanum Chromites Based Composites

掺杂铬酸镧基复合材料的组织与性能研究

lanthanumdoped lead zirconate-lead titanate

掺镧的锆酸铅－钛酸铅

Impregnation with calcium or calcium salts, as with calcium carbonate.

钙化掺入钙或钙盐，如用碳酸钙

Preparation and Performance of Co and La Co-doped Li-rich Lithium Manganate

钴镧掺杂富锂型锰酸锂制备及其性能

Preparation of Cd-doped LaFeO_3 gas-sensing materials by sol-gel method

sol-gel法制备镉掺杂铁酸镧气敏材料

The Plasma Emission Spectroscopy Determines Fe,Ca,Mg,Cr,Mn and Cu in LaB_6

等离子发射光谱法测定六硼化镧中铁、钙、镁、铬、锰、铜

A Laser Diode End-pumped Nd: BEL Laser

半导体激光泵浦掺钕铍酸镧固体激光器

Preparation Technology and Electrical Property of Strontium Doped Lanthanum Manganate Films

掺锶锰酸镧薄膜的制备工艺及电性能研究

Dielectric Properties of Ba_(0.6)Sr_(0.4)TiO_3 Ceramic Doped with LaAlO_3

铝酸镧掺杂对Ba_(0.6)Sr_(0.4)TiO_3介电性能的影响

Study on synthesis of lanthanum-doped bismuth titanate powder by hydrothermal method and on its photocatalytic performances

水热合成掺镧钛酸铋粉体及其光催化性能探讨

Structure and Electro-Optical Property of the Dy~(3+) Doped Lanthanum Zirconate-Titanate Ceramics

镝掺杂锆钛酸铅镧透明陶瓷的结构和电光性能

An Investigation on the Effect of Mn/Cr Doping to LiNi_(0.7)Co_(0.3)O_2;

锰、铬离子对镍钴酸锂掺杂效应的研究

The Studies on the Preparation and Properties of Lanthanum and Calcium Modified Lead Titanate Ferroelctric Thin Films;

钛酸铅镧钙系铁电薄膜的制备及其性能研究

First Principles Study on the Electronic Properties of K2La2Ti3O10 with a Perovskite-Type Structure

钙钛矿镧钛酸钾电子结构的第一性原理研究

Fabrication of La-modified PbTiO_3 and Ba_(0.8)Sr_(0.2)TiO_3 Thin Films by Pulsed Laser Deposition;

脉冲激光法沉积镧掺杂钛酸铅薄膜及钛酸锶钡薄膜