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The Insoluble Matter of Coal tar. I. Introduction

✍ Scribed by Green, S. J. ;Ward, Stacey G.

Publisher
Wiley (John Wiley & Sons)
Year
1948
Weight
272 KB
Volume
67
Category
Article
ISSN
0368-4075

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✦ Synopsis

Abstract

Various methods available for the determination of the insoluble matter of coal tar are briefly reviewed and published work on the nature of free carbon and the coal‐tar resins is considered. The problems associated with free carbon are introduced and the scope of the investigation proposed is outlined.

πŸ“œ SIMILAR VOLUMES

The insoluble matter of coal tar. IV. Co
The insoluble matter of coal tar. IV. Coal tar resins
✍ Green, S. J. ;Mukherji, S. M. πŸ“‚ Article πŸ“… 1948 πŸ› Wiley (John Wiley & Sons) βš– 445 KB

## Abstract The So‐called coal tar resins are defined and their preparation from vertical retort tar and pitch is described. The resins are divided into resinols, resinoic acids, resinenes, and resinamines, about 99% consisting of resinenes. The importance of dxygen in these compounds is discussed.

The insoluble matter of coal tar. V. Coa
The insoluble matter of coal tar. V. Coal tar resins
✍ Green, S. J. ;Mukherji, S. M. πŸ“‚ Article πŸ“… 1949 πŸ› Wiley (John Wiley & Sons) βš– 486 KB

## Abstract Further work on resinenes is reported including hydrolysis, bromination, thermal decomposition, dehydrogenation, hydrogenation, and alk line permanganate oxidation. The resinenes give neutral and phenolic products on hydrolysis. Dehydrogenation with selenium gives neutral and phenolic p

The insoluble matter of coal tar. VI. Ox
The insoluble matter of coal tar. VI. Oxidation of free carbon
✍ Green, S. J. ;Thakur, B. πŸ“‚ Article πŸ“… 1950 πŸ› Wiley (John Wiley & Sons) βš– 780 KB

## Abstract Work on the oxidation of carbonaceous materials with alkaline potassium permanganate is briefly outlined and the experimental step‐wise oxidation of free carbon is described. The course of reaction as interpreted from these results is indicated. Bulk oxidation of free carbon and the nat

The Insoluble matter of coal tar. II. Pr
The Insoluble matter of coal tar. II. Preliminary work on free carbon
✍ Green, S. J. ;Thakur, B. πŸ“‚ Article πŸ“… 1948 πŸ› Wiley (John Wiley & Sons) βš– 476 KB

## Abstract The effect of previous conditions of preparation and storage of coal tars on the amount of fre carbon determined by insolubility in toluene has been investigated. Pressure is shown to have little effect but at atmospheric pressure there is progressive increase in free carbon. With risin

The insoluble matter of coal tar III. So
The insoluble matter of coal tar III. Some inorganic constitutents of free carbon
✍ Green, S. J. ;Thakur, B. πŸ“‚ Article πŸ“… 1948 πŸ› Wiley (John Wiley & Sons) βš– 282 KB

## Abstract The inorganic constituents of coals are bricfly reviewed and their subsequent history during combustion and carbonization is considered. The cxamination is reported of the zinc‐pyridine complex obtained from a free carbon sample by extraction with water. Examination for other elements i