The rare earth(La, Pr, Nd, Sm) methoxides were synthesized in the condition of alkaline earth alkoxides as the providers of alkoxy, anhydrous rare earth acetates as the raw materials.
以碱土金属钙醇盐为烷氧基提供者,与无水稀土乙酸盐(乙酸镧、乙酸镨、乙酸钕、乙酸钐)在芳香族类溶剂体系中60℃回流加热反应6h～8h,合成出稀土金属(La、Pr、Nd、Sm)甲醇盐。
The rare earth (La, Pr, Nd, Sm) alkoxides (methoxide, ethoxide and isopropoxide) were synthesized by a new method using alkaline earth metal calcium, lower alcohols(CH_(3)OH, C_(2)H_(5)OH, C_(3)H_(7)OH) and anhydrous rare earth acetates as raw materials, and aromatic solvent as reaction medium.
用无水稀土乙酸盐 (乙酸镧、乙酸镨、乙酸钕、乙酸钐 )、金属钙粒与低碳醇 (甲醇、乙醇、异丙醇 )在芳香族类溶剂体系中回流加热反应 ,合成了稀土金属 (La ,Pr,Nd ,Sm)醇盐。
The re-search on synthesis of the rare earth inorganic compounds light conversion agent,rare earth organic com-pounds light conversion agent and fluorescent dye light conversion agent were reviewed in detail.
综述了转光剂的主要特性及分类,重点介绍了稀土无机化合物转光剂、稀土有机化合物转光剂及荧光染料转光剂的合成研究进展。
Activity recovery of FCC catalyst by metal removal with various inorganic acids;
流化催化裂化催化剂的无机酸脱金属复活研究
Direct catalytic oxidation of cyclohexene to adipic acid by tungstenic acid/inorganic acidic ligand;
钨酸/无机酸性配体催化氧化环己烯合成己二酸
Noble metals adsorbed by cage polyamidoxime adsorbents-effect of the adsorbents treated by inorganic acids on adsorptivity;
笼形聚偕胺肟树脂吸附贵金属──无机酸处理对树脂吸附性能的影响
The organic solvent can remove paraffin blockage due to cold, and inorganic acid fluid can remove inorganic blockage due to dirt and rock grains.
溶剂酸解堵技术是针对沈阳油田高凝油特殊原油物性而研制的 ,该技术由有机溶剂和无机酸液两部分组成 ,有机溶剂解除由于冷伤害造成的蜡堵 ,无机酸液解除机杂和岩石颗粒造成的无机堵塞 ,即通过溶剂酸的作用同时解除高凝油有机、无机堵塞 ,提高解堵效果 ,提高油层渗透能力 ,恢复油井产能。
"Acids contain one or more hydrogen atoms that, in solution, dissociate as positively charged hydrogen ions. Inorganic, or mineral, acids include sulfuric acid, nitric acid, hydrochloric acid, and phosphoric acid."
酸包括硫酸、硝酸、盐酸和磷酸等无机酸或矿物酸,以及羧酸、磺酸和酚类等有机酸。
An inorganic acid, such as perchloric acid, containing the largest proportion of oxygen in a series of related acids.
一种无机酸，如各种相关酸中含氧量最大的酸
bisulfate:The univalent inorganic acid group HSO or a salt of sulfuric acid containing it.
硫酸氢盐:单价无机酸HSO或含有它的硫酸盐。
Test method for industrial stearic acids--Determination of inorganic acid
GB/T9104.7-1988工业硬脂酸试验方法无机酸的测定
Limitedly resistant to vegetable oil and strong solvents, such as ketones and esters.
但不耐无机酸、碱及强氧化物溶液。
A variety of dilute mineral acids are used to extract the anions.
用各种稀的无机酸来萃取阴离子。
Hence a variety of dilute mineral acids are used to extract the anions.
因此用各种稀的无机酸来萃取阴离子。
hydrochloric and sulfuric acids are called inorganic substances.
盐酸和硫磺酸被称作无机物。
Syntheses and Crystal Structures of inorganic-organic hybrid aluminoborate
无机-有机杂化硼铝酸盐的合成与结构
inorganic carbonate of metals (excl, neutral sodium carbonate, natural carbonates and double or complex carbonates)
无机金属碳酸盐（不包括中性碳酸钠、天然碳酸盐和复或综合碳酸盐）
All form ATP from adenosine monophosphate (AMP) or adenosine diphosphate (ADP) and inorganic phosphate.
三磷酸腺都是由腺一磷酸(AMP)或腺二磷酸(ADP)和无机磷酸形成。
cyanide ,inorganic, of non-metals (excl. hydrogen cyanide)
无机金属氨氰酸盐（ 不包括复或络氰酸盐）
THE RELATIONS BETWEEN THE STRUCTURE AND THE ACID STRENGTH OF INORGANIC OXYACID OF NON-METAL ELEMENTS
非金属元素无机含氧酸的结构和酸强度的关系
A criterion for the relative acidic strength of inorganic oxyacid and its application;
无机含氧酸的相对酸强度判据及其应用
Study on the Synthesis of Inorganic Macromolecule Flocculant PASS
无机高分子絮凝剂聚硅酸硫酸铝(PASS)制备研究
determination of mineral sulfate content-titrimetric method
无机硫酸盐含量的测定-滴定法
cyanide ,inorganic, of metals (excl. sulphocyanides, thiocyanates and precious metal cyanides)
无机金属氰酸盐,复或络盐
inorganic carbonate of melts[double or complex]
无机金属碳酸盐[复盐或络盐]