国产卡一卡二卡3卡四卡精品_mvp情人优酷_大学生无套带白浆嗯呢啊污_亚洲精品久久7777777国产_韩国伦理片在线2018_黄sei片网站_美女成人网_亚洲精品色情AAA片_亚洲网址在线_香蕉视频污在线观看_午夜精品久久久久久久久日韩欧美_四季在线观看免费资源_btv养生堂_亚洲国产中文在线视频_日本精品一区二区三区在线_野花高清在线观看免费高清_...中文天堂在线观看_亚洲精品久久久久久久不卡四虎_地心历险记1快播_暖暖 免费高清 日本

Welcome to the official website of Wuxi High Speed Analytical Instrument Co., Ltd.!
中文    English
Sales hotline+86 510 83202007
+86 510 83202173

The role of iron and silicon in carbon and sulfur analyzers

Release time:2020-09-30 Views:1896 來源:本站

Iron and silicon are several additives commonly used in electric arc furnaces of carbon and sulfur analyzers
1. Iron. When measuring cast iron and materials with high carbon content, sometimes only about 0.1g of the sample is weighed. In this case, the amount of heat emitted by combustion in the electric arc furnace is very small and cannot meet the temperature required for the test. In order to meet the requirements of the test, we often add an appropriate amount of pure iron (according to calculations, 1g of pure iron can release 7233J of heat after combustion), so that the heat can generally meet the combustion temperature of the electric arc furnace.
2. Silicon.
(1) Silicon is mainly used as a heat-generating agent in a carbon-sulfur analyzer. After 0.15g of silicon is burned, 0.3174g of silicon dioxide is generated, and the heat released is 4816.49g, which is equivalent to the combustion of 0.66g of pure iron to produce iron trioxide. The heat.
(2) The purity of silicon can reach over 99.999%, and there is almost no carbon and sulfur blanks, which is beneficial to the determination of low carbon and low sulfur.
(3) The product of silicon oxidation is an acidic oxide of silicon dioxide. Its density is lower than that of iron and oxides. It has a floating effect in the liquid phase, which is beneficial to the determination of sulfur.
主站蜘蛛池模板: 庆阳市| 灌南县| 城步| 荣成市| 天祝| 聊城市| 湟源县| 蒙城县| 营山县| 阿拉尔市| 都昌县| 宜良县| 石嘴山市| 牙克石市| 义乌市| 云霄县| 弋阳县| 株洲县| 武隆县| 内江市| 江安县| 田阳县| 遂宁市| 清远市| 新丰县| 当阳市| 正阳县| 南城县| 逊克县| 金湖县| 哈尔滨市| 临汾市| 教育| 海原县| 元阳县| 南岸区| 禹州市| 静安区| 黔南| 沙坪坝区| 揭西县|