baryta(barytes)

For BaO modified Co/Al_2O_3 catalysts, with low BaO loadings (≤2 wt%), the presence of BaO i

但当BaO负载量大于2 wt%时,由于氧化钡和钴氧化物之间的相互作用,降低了钴的还原度,导致催化剂活性降低,重质烃的选择性降低,甲烷选择性增大。

Solubility of barium chloride and barium oxide in hydrochloric acid, ethanol,acetone,ether and hydrochloric acid- ethanol,hydrochloric acid- acetone,hydrochlo- ric acid- ether has beeen studied and the separation of Ba O from Ba Cl\- 2 with hydrochloric acidethanol as the solvent has been proposed.

研究了氯化钡和氧化钡在盐酸、乙醇、丙酮、乙醚及盐酸 -乙醇、盐酸 -丙酮、盐酸-乙醚中的溶解性 ,提出以盐酸 -乙醇为溶剂进行两者的分离 。

Improvement of production of barium hydroxide and zinc chloride etc.;

氢氧化钡、氯化锌等产品的生产工艺改进

Using barium hydroxide octahydrate and urea as raw material,barium carbonate is prepared by homogeneous precipitation method.

以八水氢氧化钡和尿素为原料,采用均相沉淀法制备了碳酸钡粉体。

Any of several barium compounds, such as barium sulfate.

重土（氧化钡）一种含钡化合物，如硫酸钡

baria-alumina-silica fibre

氧化钡-氧化铝-氧化硅纤维

The Effects of CaO and BaO on Cobalt-based Fischer-Tropsch Catalysts

氧化钙、氧化钡对钴基费—托合成催化剂的影响

white poisonous crystals; made by dissolving barium oxide in water.

白色有毒晶体，将氧化钡溶于水中制成。

The Study of BaO-Ln_2O_3-TiO_2 Microwave Ceramics Modification by Lanthanide Elements;

镧系元素对氧化钡—氧化镧—二氧化钛微波陶瓷的改性研究

Manganese ores--Determination of barium oxide content

GB/T14949.3-1994锰矿石化学分析方法氧化钡量的测定

Thermogravimetric Kinetics of Polystyrene Degradation over BaO

氧化钡催化降解聚苯乙烯的热分析动力学

a white toxic powder obtained by heating barium oxide in air.

一种白色的有毒粉末，通过加热空气中的氧化钡而得到。

an oxide of barium; a whitish toxic powder.

钡的氧化物，一种发白的有毒粉末。

A white pigment consisting of a mixture of zinc sulfide, zinc oxide, and barium sulfate.

锌钡白一种由硫化锌、氧化锌和硫酸钡混合构成的白色色素

Barium sulfonate and barium soap of petroleum ester oxide were dissolved in kerosene or machine oil to prepare oil-soluble corrosion inhibitor.

将石油磺酸钡和氧化石油脂钡皂溶于煤油或机油中制得缓蚀剂。

Preparation and Properties of BST Nano-powder and BST/MgO Multiphase Ceramic Material

钛酸锶钡纳米粉及钛酸锶钡/氧化镁复相陶瓷的制备与性能

SURFACE PROPERTY AND CATALYTIC ACTIVITY FOR ETHYLENE EPOXIDATION OF SILVER-BARIUM CATALYSTS

银-钡催化剂的表面性质和对乙烯环氧化的活性

6 Explain why barium forms a peroxide but beryllium does not.

解释为什么钡能形成过氧化物而铍则不能。

The Research of Ba-Ti-Nd System and Effect of Bi_2O_3 Dopant;

钡钛钕系陶瓷材料及氧化铋掺杂改性的研究

Investigation on Reduction and Oxidation of La-Mn Co-doped Barium Titanate Ceramics

La-Mn共掺杂的钛酸钡陶瓷还原再氧化研究

Study on La、Ba Modified Nickel-Al_2O_3 Catalysts Used for Partial Oxidation of Methane;

镧、钡改性镍—氧化铝催化剂用于甲烷部分氧化的研究

determination of the mass concentration of sulfur dioxide(hydrogen peroxide/barium perchlorate/thorin method)

二氧化硫的质量浓度的测定-过氧化氢/高氯酸钡/钍试剂法