空中
发表于 2025-3-28 17:05:02
http://reply.papertrans.cn/89/8827/882664/882664_41.png
类型
发表于 2025-3-28 20:59:02
http://reply.papertrans.cn/89/8827/882664/882664_42.png
政府
发表于 2025-3-28 23:30:12
Sulfuric Acid and Its Derivatives,mers. Many of these inorganic chemicals are used in processes to be described later for organics. Usually 19 of the top 50 chemicals are considered to be inorganic, although the exact figure is dependent on what you count. For instance, carbon dioxide, sodium carbonate, and carbon black are counted
Baffle
发表于 2025-3-29 06:51:23
http://reply.papertrans.cn/89/8827/882664/882664_44.png
Colonoscopy
发表于 2025-3-29 09:34:00
Inorganic Nitrogen Compounds,d its derivatives and have also studied industrial gases from which ammonia is made. Ammonia is in the top 10 chemicals and some important ammonia derivatives are listed in the top 50: ammonium nitrate, nitric acid, urea, and ammonium sulfate. Most ammonia eventually ends up in fertilizers of one ty
改变立场
发表于 2025-3-29 14:54:51
http://reply.papertrans.cn/89/8827/882664/882664_46.png
浅滩
发表于 2025-3-29 19:01:00
http://reply.papertrans.cn/89/8827/882664/882664_47.png
终点
发表于 2025-3-29 23:05:09
Petroleum Refining Processes,that nearly all the major organic chemicals are derived. Table 7.1 lists the seven important organic chemicals, all of which are obtained by petroleum refining processes: ethylene, propylene, the butylenes, benzene, toluene, xylene, and methane. From these are made all 31 highest volume organic chem
Angioplasty
发表于 2025-3-30 02:07:17
Basic Organic Chemicals,ne and methane. The production of methane, the major constituent in natural gas, has already been examined. We now consider in detail the manufacture, uses, and economic aspects of the other basic six organics. This will lead us into a discussion of the derivatives of each of them and their technolo
赏心悦目
发表于 2025-3-30 06:01:16
http://reply.papertrans.cn/89/8827/882664/882664_50.png