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Purification of Organic Chemicals
2003Publisher Summary This chapter discusses the general principles, techniques, and methods of purification of organic chemicals. The chapter includes commercially available organic chemicals. Most organic liquids and a number of solids can readily be purified by fractional distillation, usually at atmospheric pressure.
Wilfred L.F. Armarego +1 more
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1978
The organic chemical industry has played an important role in producing the drugs that protect us from many diseases, the pesticides and herbicides that have increased agricultural yields, and the many forms of plastics that provide us with inexpensive durable fabrics, furniture, floor coverings, and a myriad of other products we encounter in our daily
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The organic chemical industry has played an important role in producing the drugs that protect us from many diseases, the pesticides and herbicides that have increased agricultural yields, and the many forms of plastics that provide us with inexpensive durable fabrics, furniture, floor coverings, and a myriad of other products we encounter in our daily
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2012
Synthetic organic chemicals are produced by the transformation of carbonaceous feedstocks into functionalized molecules through one or more chemical reactions. Such transformations are accomplished at vast industrial scales and the resulting products permeate every aspect of modern society.
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Synthetic organic chemicals are produced by the transformation of carbonaceous feedstocks into functionalized molecules through one or more chemical reactions. Such transformations are accomplished at vast industrial scales and the resulting products permeate every aspect of modern society.
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2007
Synthetic organic chemicals can be defined as products derived from naturally occurring materials (petroleum, natural gas, and coal), which have undergone at least one chemical reaction, such as oxidation, hydrogenation, or sulfonation.
Guo-Shuh J. Lee +2 more
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Synthetic organic chemicals can be defined as products derived from naturally occurring materials (petroleum, natural gas, and coal), which have undergone at least one chemical reaction, such as oxidation, hydrogenation, or sulfonation.
Guo-Shuh J. Lee +2 more
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2002
As we saw in Table 7.1 the major organic chemicals are all derived from seven basic ones: ethylene, propylene, the C4 fraction, benzene, toluene, xylene and methane. The production of methane, the major constituent in natural gas, has already been examined.
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As we saw in Table 7.1 the major organic chemicals are all derived from seven basic ones: ethylene, propylene, the C4 fraction, benzene, toluene, xylene and methane. The production of methane, the major constituent in natural gas, has already been examined.
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Biodegradation of organic chemicals
Environmental Science & Technology, 1985Erroneous conclusions may be reached from studies or routine tests done with organic chemicals at the levels often employed for prediction of chemical fate in nature. These errors in extrapolation from high to low concentration may occur in routine evaluations of biodegradation, careful assessments of kinetics, or the establishment of products formed ...
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1999
Publisher Summary This chapter highlights some of the organic air pollutants to which humans are exposed. The general population is exposed to benzene in the outdoor environment mainly through inhalation of polluted air from vehicles, and to a lesser extent, from industrial sources.
Lesley Rushton, Kathleen Cameron
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Publisher Summary This chapter highlights some of the organic air pollutants to which humans are exposed. The general population is exposed to benzene in the outdoor environment mainly through inhalation of polluted air from vehicles, and to a lesser extent, from industrial sources.
Lesley Rushton, Kathleen Cameron
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Phytovolatilisation of organic chemicals
Journal of Soils and Sediments, 2003Background, Goal and Scope, When contaminated soil and water are remediated by using plants, a multitude of pathways, partly not yet quantified, are activated. ‘Phytovolatilisation’ denotes the process in which usually organic compounds are emitted from the aboveground sections of the plant into the atmosphere. This includes all the compounds which are
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Hydrolysis of Organic Chemicals
1988Hydrolysis of organic compounds in water usually depends on the concentrations of protons or hydroxide ion or both, as well as water. Mechanisms of hydrolysis are well-described by classical concepts of substitution or addition by HO− or H2O at sp3 or sp2 carbon.
Theodore Mill, William R. Mabey
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