Summary
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1.
On heating, there is formed in crude peat wax a product insoluble in ethanol and several other organic solvents.
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2.
In the crude resins of peat bitumen a product insoluble in alcohol is not formed at a temperature below 80°C. while at a temperature of 100°C. the quantity formed is insignificant compared with that of the crude wax.
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3.
When ethanol is used to extract bitumen, less insoluble material forms on heating than when the benzene-ethanol mixture is employed as the solvent.
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4.
The amount of the insoluble part formed by heating purified wax in an ethanol solution is less than by heating it in air at the same temperature.
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5.
The formation of an insoluble part in crude wax occurs in the absence of oxygen, but its presence accelerates the rate of formation.
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6.
In the range, room temperature up to 100°C., one or more condensation-polymerization type of reactions take place in crude wax.
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Sundgrén, A., Rauhala, V.T. Effects of heat on crude peat wax. J Am Oil Chem Soc 29, 611–613 (1952). https://doi.org/10.1007/BF02631722
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DOI: https://doi.org/10.1007/BF02631722