Compounds 1–4 were tested as heterogeneous catalysts for the epoxidation of styrene using tert-butyl hydroperoxide (TBHP) as oxidant. The compounds show catalytic activity with 2 giving the highest yield of styrene oxide. Four organic–inorganic hybrid compounds were hydrothermally synthesized based on...
Hydrocarbons are organic compounds that only contain carbon and hydrogen atoms. There are four families of hydrocarbons: (1) alkanes, (2) alkenes, (3)... Learn more about this topic: Hydrocarbon Definition, Formula & Types from Chapter 4/ Lesson 9 ...
To measurre and understand the constituents of volatile organic compounds(VOCs),flower VOCs from Magnolia soulangeana,Magnolia liliflora,Magnolia denudata'Feihuang',and Michelia maudiae were collected using the dynamic headspace air-circulation method and analyzed with thermal desorption system-gas chromato...
of motion refraction of light maxwell's equation electrostatics bernoulli's principle projectile motion electric charge physics symbols more chemistry periodic table stereochemistry organic compounds inorganic chemistry quantum numbers atomic mass of elements periodic properties of elements 118 elements and their...
Living things are composed of many thousands of different organic compounds, and it is sometimes imagined that at least some of these might be improved upon if they were replaced by some man-made variant of the natural substance. The third law of ecology suggests that the artificial introduction...
Complexes of NN′-disubstituted thio- or seleno-ureas (L) with bivalent palladium or platinum (Pd, Pt = M) belong mostly to the following types: (i) MIIL4X2(X = halogen), behaving typically as 1 : 1 electrolytes containing the five-co-ordinated cation [MIIL4X]+; (ii)[MIIL4X]ClO...
of nucleotides, which in turn form the structural units of nucleic acids, like DNA. Finding the phosphates in the returned sample, says Dworkin, “permit[s] us to ask the question if these soluble phosphate salts could have contributed to the formation of phospho...
The four stages of food processing track the process from the moment that a human or animal eats food or drinks a liquid. The four stages are as follows: Ingestion For animals to extract the nutrition and organic compounds from their food, they must break the food down into smaller and ...
VOC and carbonyl emissions from carpets: A comparative study using four types of environmental chambersVOCsBTEXSAldehydesINDOORTRONenvironmental chamberscarpetsEmissions of Volatile Organic Compounds (VOCs) and carbonyls from carpets of different type (wool, synthetic) over a time period of three days at...
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