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TNT: Trinitrotoluenes and Mono and Dinitrotoluenes

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HISTORICAL 7<br />

formula (supposedly) C14H16 had been isolated, <strong>and</strong><br />

that, by determining the vapor density, they had proved<br />

it to be just half this molecular weight, or C7H8. On<br />

the other h<strong>and</strong>, there is no reason why—if they did<br />

know of the previous discovery of this same substance<br />

—they should give it a new name. The dates on<br />

which the above-mentioned men published their article<br />

seems to point to Pelletier <strong>and</strong> Walters as the discoverers—their<br />

work was completed about 1838,<br />

while Deville's work was published somewhere about<br />

1841. Of course, there is the possibility that Deville<br />

completed his work some years before his results were<br />

published.<br />

In 1843, Berzelius technically accorded the discovery<br />

of toluene to Deville by suggesting the name " toluol "<br />

or " toluene " for the compound, (3) the name being<br />

derived from " oil of tolu."<br />

Some of the scientists of that period (probably<br />

friends of Pelletier <strong>and</strong> Walters), did not approve of<br />

Berzelius 7 choice of name for this substance, <strong>and</strong><br />

two of these, Muspratt <strong>and</strong> Hoffman, in a research<br />

paper dated 1845, take occasion to remark: (4) " Berzelius<br />

has proposed for this compound the name l toluol<br />

' or ' toluene/ names which are not very well<br />

chosen, but which we shall retain in the following discussion."<br />

The " retinaptha " of Pelletier <strong>and</strong> Walters <strong>and</strong> the<br />

tc benzoen " of Deville were proved to be the same substance<br />

by the preparation of the nitro-derivatives, <strong>and</strong><br />

by comparing the constants of those, <strong>and</strong> possibly the<br />

acid nitro-derivatives <strong>and</strong> corresponding toluidins.<br />

Glenard <strong>and</strong> Boudalt, at about the same time, probably<br />

later than both Deville's <strong>and</strong> Pelletier <strong>and</strong> Wai-

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