The THFA product of hydrogenation in common pressure has been used in enzymatic reaction and expressed the same result as that of THFA from Sigma, the cost of reduction by hydroborates is lower.
In a testing of petrolic engine, about 70% to 80% of nonmethane hydrocarbon is emitted into atmosphere without catalysis conversion in theoment of coldstart, so that serious pollution is produced.
The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.
A proof that most of the steps for the reaction of Dihydrocoumarin are consecutive has been given from kinetic experiments and analytical results of the products.
Using sodium hydrosulphide or sodium thiosulfate as materials,the production cost of TGA is low.While,a high content of TGA can be obtained with thiourea as reactant.
A new camphol sandaliol was synthetized by selective alkylation of isocamphol and phenol with acidic catalyst, and following hydrogenated in the presence of Raney nickel.
Hydroprednisone acetate was injected into the rabbits of the model group using intragluteal injection to produce necrosis models of bone cells of femoral head.
The content of As and Sb in paints are analyzed by hydride generat io n atomic fluorescence spectrometry (HG-AFS) and L-cysteine prereduction proces s.
The mechanical property and thermal stability of cured epoxy resin were closely related to the chemical structure of hydrogenated terpinene maleic anhydride.
The function of hydrocarbons and nitrogen oxides in photochemical smog formation and the formative process of ozone and peroxyacetyl nitrate are discussed.
Sevoflurane is synthesized from aceton by vapor phase catalytic fluorination, vapor phase catalytic hydrogenation,chloridization and fluoromethylation, which gives a new synthetic method.
The catalysts,which were used for oxidating hydrogenized anthraquinone working fluid in the production course of hydrogen peroxide by anthraquinone method were introduced.
The recent developments in conventional synthesis of naphthol are summarized, including sulfonation alkali-fusion, via isopropyl naphthalene, hydrolysis, via tetrahydronaphthalene.
We're using a bowl of plasma energy in breaking apart hydrocarbon and reaming the carbon down on seeds of diamond, atom by atom CRANE: How long does it take to produce one of these?
Since this is a world full of hydrocarbons, but with an oxygen deficit, which would be needed to burn the hydrocarbons, energy and transport on Titan will be arranged quite differently from that here on Earth.
The abundance of hydrocarbons in the Amazon burn to form ash, are cast into the atmosphere, darting the sky and keeping sunlight from reaching the surface, dropping temperatures to near freezing worldwide.
You see, most of these double bonds are in a configuration known as " cis bonds" , but hydrogenation often flips them into something called a " trans configuration" .
We also need to use chemistry to figure out how to convert one plastic type into another plastic type, or even convert plastic into other useful hydrocarbons like fuel.
了以硫氢化钠和氯乙酸钠为原料常压合
巯基乙酸。
版）双语精选 
用来代替进口试剂作为酶促反应的辅酶，但硼
纯碳
不是沙子。
用一份等离子体能量来分解碳
排列。克莱恩: 要多久才能生产出这样
