By flame atom absorption spectrometry, the contents of passium oxide, Sodium oxide in potassium feldspar are determined.
用火焰原子吸收分光光度法测定钾长石中的氧化钾、氧化钠。
For the route of selective separation and enrichment with sodium oxide, it is very difficult for one-step route to produce quite pure enriched slag.
对于钠系选择性分离富集路线，采用一步调渣法路线难以取得较高纯度的富钛渣。
The results showed that only small amount of alkalis in feldspar were extracted when autoclaved with water, and the majority of extract is sodium oxide.
结果表明：长石在水中碱溶出量比较少，溶出的碱主要是钠碱。
Below the glass strain temperature, interdiffusion coefficients are almost independence of sodium oxide concentration in the glasses and somewhat increase with long ion exchange time.
低于玻璃应变温度，互扩散系数几乎不依赖玻璃中的氧化钠浓度，而略随离子交换时间增加而增大。
Instead, it has an atmosphere made up of chemicals such as vaporized sodium, potassium and gaseous titanium oxide, which absorb light, but that still does not explain the planet's extreme blackness.
相反，TrES - 2b的大气层由气态钠、钾和三氧化钛这些可以吸收光线的化学物质组成，不过这也并不能为该行星极黑提供解释。
Synthesis technology and property of hydroxypropyl starch by using potato starch as raw material, propylene oxide as etherization reagent and sodium hydroxide as catalyst, were studied in this paper.
本文以马铃薯淀粉为原料，环氧丙烷为醚化剂，氢氧化钠为催化剂对低取代度羟丙基淀粉的制备工艺进行了研究。
Dr Katz and his colleagues found that, although sodium ions flow readily in between adjacent aluminium-oxide layers of sodium beta-alumina, they cannot pass between them.
Katz博士和他的同事们发现,在钠β-氧化铝中,虽然钠离子流很容易在相邻的氧化铝层之间流动, 但是它们无法从中穿过.
The industrial practice on recovery of molybdenum from sulphide waste materials and production of qualified sodium molybdate and molybdenum oxide were presented.
介绍了从复杂的硫化物废料中回收钼，生产合格的钼酸钠和工业氧化钼的工业实践。
The influences of the factors, such as ethanol solution, sodium hydroxide, propylene oxide, reaction temperature, reaction time on apparent viscosity and water insoluble substance of HPG are studied.
研究了合成过程中乙醇溶液、氢氧化钠、环氧丙烷、反应温度、反应时间等因素对产品表观黏度和水不溶物含量的影响。
Using sodium carbonate and calcium oxide as cheap acid-capturer, perfume furfuryl butyrate was synthesized from furfuryl alcohol and butyryl chloride, and was characterized by GC and IR.
由丁酰氯和糠醇反应，以廉价的氧化钙和碳酸钠为复合束酸剂，合成了香料丁酸糠醇酯，并用IR、GC等进行了表征。
Non-pollution roasting technology by using sodium carbonate, calcium oxide, red mud and lime mud as roasting additives for extraction of vanadium from siliceous navajoite was studied.
采用氧化焙烧法研究了无污染的焙烧添加剂碳酸钠、氧化钙、红泥和苛化泥从硅质岩钒矿中提取钒的焙烧工艺。
The test demonstrates that alkali carbonates, alkali hydroxides and a combination of sodium carbonate with ferriferrous oxide all exhibit approximate catalytic activity.
试验证明：碱金属碳酸盐，碱金属氢氧化物和碳酸钠同四氧化三铁的复合剂，都表现出相接近的催化活性。
Silicon oxide nanoparticle are prepared by chemical precipitation process, with sodium metasilicate and hydrochloric acid as raw material.
以工业硅酸钠和盐酸为原料，采用化学沉淀法制备出纳米二氧化硅。
Using sodium nitroprusside as a nitric oxide (no) donor, the effect of different concentration of SNP treatment on sensory and internal quality of Lima bean pod was investigated.
以硝普钠(SNP)为NO供体，研究不同浓度的SNP对菜豆荚的感官品质和内在品质的影响。
Synthesis technology and property of hydroxypropyl starch by using potato starch as raw material, propylene oxide as etherization reagent and sodium hydroxide as catalyst, were studied in this paper.
以绿豆淀粉为原料，环氧丙烷为醚化剂，氢氧化钠为催化剂，无水硫酸钠为膨胀抑制剂，对羟丙基绿豆淀粉合成工艺及性能进行了研究。
Chitosan was modified with propylene oxide in the presence of sodium hydroxide.
在碱性条件下用环氧丙烷对壳聚糖进行了改性研究。
The experiment indicates that the polyacrylate sodium and the titanate can both disperse the oxide iron powder notably;
试验表明：聚丙烯酸钠和钛酸酯都可以使铁红粉体达到很好的分散效果；
Objective: We detected the content of methylene chloride and diethylene oxide in Ceftizoxime Sodium using head-space GC method.
目的：建立一种气相色谱法测定原料药头孢唑肟钠中二氯甲烷和四氢呋喃有机溶剂残留量的方法。
In this paper, the reactive theory of the preparation of sodium hypophosphite by one-stage process taking phosphor, calcium oxide and sodium carbonate as raw material is introduced.
详细研究了以黄磷、氧化钙和碳酸钠为原料，采用一步法制备次磷酸钠的最佳条件和有关工艺。
In this paper, the reactive theory of the preparation of sodium hypophosphite by one-stage process taking phosphor, calcium oxide and sodium carbonate as raw material is introduced.
详细研究了以黄磷、氧化钙和碳酸钠为原料，采用一步法制备次磷酸钠的最佳条件和有关工艺。
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