Three solvent extracted, methylated British bituminous coals were oxidized with trifluoroperoxyacetic acid (TFPA ). The soluble and insoluble fractions were analysed using a range of physical and chemical techniques. The TFPA oxidized insoluble fraction from the highest rank coal, Cortonwood Silksto
Searching the evidence for the intercalation of bromine in high-rank coal
โ Scribed by D.D.L. Chung; C.G. Woychik
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 516 KB
- Volume
- 66
- Category
- Article
- ISSN
- 0016-2361
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โฆ Synopsis
Similar to graphite, meta-anthracite absorbs bromine at room temperature to a concentration close to that of stage-2 graphite-bromine.
Subsequent desorption at room temperature was incomplete, indicating that 88 "/, of the bromine was loosely held and 12% was relatively strongly held in the muta-anthracite.
The rate of bromine absorption and the amount and rate of bromine desorption were greater for metu-anthracite than for graphite. X-Ray diffraction, electron diffraction and differential scanning calorimetry showed the absence of intralayer or interlayer intercalate ordering in brominated meta-anthracite after desorption, hence yielding no evidence for intercalation.
๐ SIMILAR VOLUMES
Model compounds representing a variety of hydrocarbon groups and most of the oxygencontaining functional groups have been tested for reactivity with tetralin at 4OO'C. Only the quinones were capable of oxidizing tetralin to naphthalene. Anthraquinone is completely deoxygenated to anthracene. Evidenc