United States or Pitcairn Islands ? Vote for the TOP Country of the Week !


Considerations of arsenic, or antimony, or mercury existing in the dyed stuffs are absolutely excluded. In a few cases the dyestuff is a zinc compound, and zinc in small traces may possibly be fixed by the material, but this metal is not known to be actively noxious.

The dyestuff industry had been developed to such a point in Germany that Germany supplied the whole world. In the first months of the war some enterprising Americans, headed by Herman Metz, chartered a boat, called TheMatanzas, and sent it to Rotterdam where it was loaded with a cargo of German dyestuffs. Th boat sailed under the American flag and was not interfered with by the English.

This move towards independence in the whole range of products involved is referred to elsewhere, owing to the manner in which it simplified German production for chemical warfare. Combination, however, did not cease in the creation of these enormous establishments. The cartel fever raged here as in other German industries. By 1904 two immense combinations had been formed in the dyestuff industry.

These coincided with the bursts of the shell. Analysis of the earth showed that the colour was due to the presence of an actual dyestuff. A number of explanations were advanced to account for the use of the colour, of which the most probable claimed its employment for the identification of affected localities several hours or even days after the bombardment.

But let us take the printed piece of cotton and dye that in the Alizarin bath, and then we shall discover the conditions for producing colours with such a dyestuff as madder or Alizarin. Different coloured stripes are produced, and the colours are conditioned by the kind of metallic salts used.

"'Slave, says I to the dealer in the language I learned shiftin' scenes for a week, back in old St. Looey. 'Slave! says I. 'I've stacked my life agin the cast in your eye, and I will stand the razzle of your dyestuff. Shoot! You're faded! "And he was, too.

In 1489 woad, a dyestuff from southern France, was included, and it was ordered that merchandise to be exported from England or imported into England should never be shipped in foreign vessels if sufficient English vessels were in the harbor at the time. Although this policy was abandoned during the short reign of Edward VI it was renewed and made permanent under Elizabeth.

The commercial submarines, Deutschland and Bremen, were to a great extent built with money furnished by the dyestuff manufacturers, who hoped that by sending dyestuffs in this way to America they could prevent the development of the industry there. I had many negotiations with the Foreign Office with reference to this question of dyestuffs.

"The walnut tree has a great variety of good qualities in addition to its fine appearance and generous shade. From the kernel a valuable oil may be obtained for use in cookery and in lamps. Bread has also been made from the kernels. The spongy husk of the nuts is used as dyestuff.

This substance is tetramethyldiamidobenzophenone, and a little bit of it is placed in a small glass test-tube, just moistened with a couple of drops of another aniline derivative called dimethylaniline, and then two drops of a fuming liquid, trichloride of phosphorus, added. On simply warming this mixture, the violet dyestuff is produced in about a minute.