But the most wonderful thing about substantive coal-tar
colours is their immense tinctorial power, _i.e._ the very little
quantity of each required compared with the immense superficies of cloth
it will dye to a full shade.
TABLE A.[2]
-------------------------------------------------------------------------------
TWELVE GALLONS OF GAS-TAR
(AVERAGE OF MANCHESTER AND SALFORD TAR) YIELD:--
---------+---------+------+----------+----+--------------+---+---+--------+----
Benzene.| Toluene.| P |Solvent | H N| Naphthalene. | C | H | A | P
| | h |Naphtha | e a| | r | e | n | i
| | e |for | a p| | e | a | t | t
| | n |India | v h| | o | v | h | c
| | o |rubber, | y t| | s | y | r | h
| | l |containing| h| | o | | a | .
| | . |the three | a| | t | O | c |
| | |Xylenes.
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