查询词典 sodium carbonate

In this paper, acetylsalicylic acid has been synthesized by microwave radiation, taking anhydrous sodium carbonate as catalyst.

本论文采用微波方法合成阿司匹林，用无水碳酸钠作催化剂，研究了微波在有机合成中的应用及其加热原理。

When produce dense sodium carbonate with the material of natural alkali,a plenty of alkaline scrap material or alkaline mud which can alkalify the earth ,pollute the air and environment is manufactured ,using the scrap material by calcine with a large movable kiln is expensive.

在以天然碱为原料生产重质纯碱时，伴生大量碱性废渣，此废渣堆放或坑埋，碱化土壤，污染环境和空气，若用大型回转窑煅烧处理，成本高不经济。

Below is a new process of synthesizing ammonium alum by means of semifinished aluminium sulfate and the mother liquor from the preparation of sodium carbonate through double decomposition as raw materials.

研究了以芒硝复分解法制碳酸钠的母液和粗品硫酸铝为原料合成铵明矾的工艺，找出最佳工艺条件，产品质量达到国家标

This paper preliminary studied the ammonium phosphate type and sodium carbonate type SFPEA by the system.

利用该系统进行了磷酸铵盐型和碳酸氢钠型超细微粒灭火剂粒度与灭火浓度之间的关系的初步研究。

One of the most widely employed materials of the chemical industry, it is used in manufacturing chlorine, caustic soda, sodium carbonate, bicarbonate of soda, soap, and chlorine bleach, as well as in ceramic glaze s, metallurgy, food preservation, curing of hides, road de-icing, water softening, photography, and many consumer products, including mineral waters, mouthwashes, and table salt itself.

氯化钠是化学工业最广泛使用的材料之一，用于制造氯、氢氧化钠、碳酸钠、碳酸氢钠、含氯聚合物，另外在陶瓷釉、冶金、食物保存、皮肤消毒、道路除冰、水的软化、照相及许多消费商品、调味用。

One of the most widely employed materials of the chemical industry, it is used in manufacturing chlorine, caustic soda, sodium carbonate, bicarbonate of soda, soap, and chlorine bleach, as well as in ceramic glazes, metallurgy, food preservation, curing of hides, road de-icing, water softening, photography, and many consumer products, including mine ral waters, mouthwashes, and table salt itself.

氯化钠是化学工业最广泛使用的材料之一，用于制造氯、氢氧化钠、碳酸钠、碳酸氢钠、含氯聚合物，另外在陶瓷釉、冶金、食物保存、皮肤消毒、道路除冰、水的软化、照相及许多消费商品、调味用。

Oxygen,nitrogen,liquid oxygen,liquid argon,hydrogen peroxide,carbon monoxide,carbon dioxide,sodium bicarbonate,sodium carbonate,hydrogen,hydrogenized oil,liquid ammonia,ammonia liquor,nitric acid,synthetic ammonia,fatty alcohol and so on.

氧气，氮气，氢气，一氧化碳，二氧化碳，液氧，液氩，液氨，氨水，硝酸，双氧水，碳酸氢钠，碳酸钠，合成氨，脂肪醇等。

Light oil 2,000 yuan / ton; ferrocene 28000 yuan / ton; DME 3,000 / ton; sodium hydroxide 2600 yuan / ton; Mercaptans 18,000 yuan / ton; Flavor 36,000 yuan / ton; Light EPA [density 0.60-0.63] 2,500 yuan / ton; sodium carbonate 1,000 yuan / ton; hydrogen peroxide 1,000 yuan / ton; xylene 4200 yuan / ton; potassium permanganate 5800 yuan / ton; petroleum ether 3,500 yuan / ton; naphtha 2900 yuan / ton; ethanol 2800 yuan / ton; dry gas 4100 yuan / ton; butane 2,500 yuan / ton; acetone 4400 yuan / ton; hydroquinone 18,000 yuan / ton; natural gas (6 gauge) 3850 yuan / ton; gasoline 97 # 3,500 yuan / ton; gasoline 93 # 3,100 yuan / ton; gasoline 90 # 2900 yuan / ton; diesel 0 # 3200 yuan / ton;-10 # diesel 3,500 yuan / ton .

轻质油2000元/吨；二茂铁28000元/吨；二甲醚3000元/吨；氢氧化钠2600元/吨；硫醇18000元/吨；香精36000元/吨；轻烃碳五[密度0.60-0.63]2500元/吨；碳酸钠1000元/吨；双氧水1000元/吨；二甲苯4200元/吨；高锰酸钾5800元/吨；石油醚3500元/吨；石脑油2900元/吨；乙醇2800元/吨；干气4100元/吨；丁烷2500元/吨；丙酮4400元/吨；对苯二酚18000元/吨；天然液化气(6个压)3850元/吨；汽油97＃3500元/吨；汽油93＃3100元/吨；汽油90＃2900元/吨；柴油0＃3200元/吨；柴油-10＃3500元/吨。

When the charge formula among concentrate, sodium carbonate and coal powder is 100:50:10, the temperature is 980℃, time is 60 min, the direct recovery rates of main metals are that 92.29% Pb, 79.82%Sb and 84.94%Ag, the slag ratio of metals for Pb, Sb, Ag, In, Zn, Cu and Fe are 5.00%, 3.21%, 8.97%, 69.76%, 95.28%, 78.00% and 87.74% respectively, the grade of sodium sulphide in the slag is 52%, the slag ratio is 62.4%.

炉料配方为精矿：纯碱：煤粉＝100：50：10；温度为980℃，时间为60 min时，各主要金属直收率分别为：Pb 92.29、Sb 79.82、Ag 84.94，金属入渣率分别为：Pb 5.00、Sb 3.21、Ag 8.97、In 69.76、Zn 95.28、Cu 78.00、Fe 87.74，熔炼渣中硫化钠品位为52%，渣率为62.4%。

But in sodium carbonate solution, any form of hydrogarnet can be decomposed into sodium hydrate alumino-silicate.

通过对钠硅渣和水化石榴石反应行为的热力学分析，发现高饱和系数( x ＞1)的水化石榴石不易被苛性碱分解，低饱和系数的水化石榴石易被分解而转化为钠硅渣，且钠硅渣也可以转化为水化石榴石，而在Na2CO3溶液中，任何形式的水化石榴石均能被分解生成钠硅渣。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。