Bats, swallows and more are chemically preserved in the pose in which they perished, sealed in the deposits of sodium carbonate in the water.
蝙蝠、燕子以及更多的动物遗体以化学方式保存成它们死亡时的姿势，被密封在水里的碳酸钠沉 积物中。
The French Academy wanted to promote the production of much-needed sodium carbonate from inexpensive sodium chloride.
法国科学院想要推进从便宜的食盐中制造大量需要的碳酸钠的生产。
By 1791, Nicolas Leblanc had succeeded in producing sodium carbonate from salt by a 2-step process.
1791年，尼古拉斯·卢布朗用“两步法”(2 - step process)成功的从食盐中制造出了碳酸钠。
Mark Brenckle, an undergraduate at Tufts, adding sodium carbonate into boiling water as part of the silk degumming process.
塔夫斯大学的大学生马克·布伦克尔（Mark Brenckle）正在往沸水中加入碳酸钠，这是蚕丝脱胶步骤的一部分。
The sodium carbonate used in the process is mined domestically, rather than being made in a complex chemical process like the current technology (amines).
该过程中的碳酸钠是国内开采的，而不是通过复杂的化学过程如胺的制备技术制备的。
The new technique employs an abundant and environmentally benign sorbent: sodium carbonate, a. k. a. kitchen-grade baking soda.
新技术采用了一种充足的、环保的吸附剂：碳酸钠，又名厨房级小苏打。
Big quantities of quicklime are used to convert sodium carbonate into sodium hydroxide the key chemical reagent in this process.
采用了大量的生石灰来把碳酸钠转换成氢氧化钠，它是这个过程中。
Sample solution is made by decomposing the sample of melted sodium carbonate, which is used to confirm the contents of iron, chromium and molybdenum in MT shift catalyst.
采用碳酸钠熔融分解样品制成待测试样溶液，同时用于测定中变催化剂中的铁、。
Examples are sodium carbonate and potassium acid phthalate which are used to standardize acid and base solutions.
例如碳酸钠和邻苯二酸氢钾，分别用来标定酸和碱溶液。
Character of Sodium carbonate white powder crystal; When it dissolves in water, the liquid will have alkalinity, and emit heat; Sodium carbonate and acid react to salt.
性状白色粉状结晶；易溶于水，水溶液显碱性，并放出热量，易潮解；与酸发生反应生成盐。
Sodium carbonate for example, is recovered from black liquor in soda pulp mills.
以碳酸钠微粒，是从纯碱纸浆厂的黑色液体中回收的。
The theory of thermodynamics of irreversible process was applied to the reaction of alumina roasted with anhydrous sodium carbonate, and obtained the dynamic expresses of the reaction.
将不可逆过程热力学的理论应用于氧化铝的碳酸钠焙烧过程，得到过程的动力学方程。 研究表明氧化铝钠化焙烧过程的控制步骤与氧化铝的粒度有关。
Soda; Soda ash; Sodium carbonate; soda calcined.
产品别名碳酸钠；苏打；工业碳酸钠。
The catalytic behavior of sodium carbonate was analyzed and discussed in terms of structure component of wood.
根据木材的结构成分对碳酸钠的催化行为进行了分析。
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。
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。
Sodium carbonate deposits may be classified into three major types, Quaternary salt lake, Quaternarysand-covered playa and Tertiary continental detrital rock, all three having been found in China.
碳酸钠矿床有三大类型：第四纪盐湖型、第四纪砂下湖型及第三纪陆相碎屑岩型，在中国均有发现。
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。
Instead of extracted by organic solvents, sodium carbonate was used to separate the product and water, thus the following press was simpler and the cost was lower.
菸酸与二乙胺、三氯氧磷作用，再经氢氧化钠中和，加入纯碱使反应液中的产品与水分层，取代有机溶剂萃取工艺，简化了操作，降低了消。
A method of producing crystal sodium fluoride with sodium fluosilicate and sodium carbonate is introduced. And its optimal operations are described in detail.
本文介绍了以氟硅酸钠、纯碱为原料生产晶体氟化钠的工艺，并对操作条件作了详细的说明。
The reaction processes of preparing sodium diacetate from acetic acid and sodium carbonate are studied.
本文对乙酸—纯碱法制备双乙酸钠反应过程进行了研究。
The effect of sodium carbonate on the corrosion inhibition of aluminum alloy in sodium chloride solution was investigated by SEM and electrochemical means.
应用电化学实验方法和扫描电子显微镜（SEM）研究了碳酸钠在氯化钠溶液中对铝合金的缓蚀作用。
Treatment of the obtained salt D-phenylglycined-camphor sulfonic salt with sodium carbonate gave crude D-phenylglycine.
苯甘氨酸·d-樟脑磺酸盐用碳酸钠处理得粗D-苯甘氨酸。
The experimental process on synthesis of roxithromycin was studied by using erythromycin oxime and MEMC as raw material under the catalytic action of anhydrous sodium carbonate.
研究了以无水碳酸钠为催化剂，红霉素肟与甲氧基乙氧基氯甲醚(MEMC)为原料，一步合成罗红霉素的实验过程。
The addition of sodium carbonate into the grinding process can realize the selective desliming.
磨矿过程中添加碳酸钠，可实现矿泥的选择性脱除。
Diglycol allyl percarbonate is synthesized by diglycol, sodium carbonate, chloropropene and carbon dioxide.
以二甘醇、碳酸钠、氯丙烯和二氧化碳为原料合成二甘醇双碳酸烯丙酯。
The study of the hardening characteristics of reclaimed CO2 sodium silicate bonded sand shows that the residual sodium carbonate acetate is the primary affecting factor.
用CO_2法硬化水玻璃砂时，影响再生砂制备的型砂性能的主要因素是残留在砂粒表面的碳酸钠盐。
This article deals briefly with the main USES, the methods of production and the good prospects of per-sodium carbonate.
扼要介绍过碳酸钠的主要用途、生产方法和开发前景。
Hard water which can be softened by adding sodium carbonate is called permanent hard water.
经过加入碳酸钠能被软化的硬水，称为永硬水。
A new process of metallurgy of rare metals zirconium and hafnium with caustic soda instead of sodium carbonate to rub up zircon is examined.
研究了以氢氧化钠代替碳酸钠拌和锆英砂冶炼锆、铪稀有金属的新工艺。
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