Vietnam or Thailand ? Vote for the TOP Country of the Week !
Updated: April 30, 2025
Henceforth that game will be played by all. England, for instance, will manufacture dyestuffs not only for her textile trades, but because coal-tar products are essential to the making of high explosives. Thus, Competition, which was once merely part of the natural progress of a country, will hereafter be a large part of the struggle for national existence.
Solutions of the latter strength yield more accurate results when small percentages of acid or alkali are to be determined. These substances employed as indicators are usually organic compounds of complex structure and are closely allied to the dyestuffs in character. The indicators in most common use for acid and alkali titrations are methyl orange, litmus, and phenolphthalein.
Our complete dependence upon German supplies before the war made the interruption of trade a cause of exceptional economic disturbance. The close relation between the manufacture of dyestuffs, on the one hand, and of explosive and poisonous gases, on the other, moreover, has given the industry an exceptional significance and value.
This letter is dated New York, March 3, 1916, and, after a detailed examination of the economic relationships between Germany and America, states: "Further, we should, according to my conviction, hold ourselves absolutely passive in relation to the proposals for the exportation of potash, chemicals, and dyestuffs, and if the opportunity arises, make the sanction for them, not dependent upon the consent for an exchange of articles, but upon the abolition en bloc of all hindrances to intercourse contrary to international laws which have been instituted by England."
Silk and cotton, both raw and manufactured into fine goods, indigo and other dyestuffs, aromatic woods and gums, narcotics and other drugs, pearls, rubies, diamonds, sapphires, turquoises, and other precious stones, gold and silver, and above all the edible spices, pepper, ginger, cinnamon, cloves, and allspice, could be obtained only in Asia.
And, another thing nowhere else on the globe except in the department of Trienta y tres in Uruguay does the chuchula plant grow. The products of the country I speak of are valuable woods, dyestuffs, gold, rubber, ivory, and cocoa." "I was not aware," said I, "that South America produced any ivory."
In addition to dyestuffs, it is a starting-product for the manufacture of many drugs, such as antipyrine, antifebrin, &c. Aniline is manufactured by reducing nitrobenzene with iron and hydrochloric acid and steam-distilling the product. The purity of the product depends upon the quality of the benzene from which the nitrobenzene was prepared.
As a solvent for gums, resins, essential oils, etc., it is used in the preparation of varnishes, extracts, perfumes, medicines, and numerous other substances of everyday use. Through its chemical interactions, it is used in the manufacture of ether, chloroform, explosives, collodion, celluloid, dyestuffs, and artificial silk.
Silk, wool, fur, etc., act like fibre and mordant together, for they absorb and fix the substantive colours firmly. In our experiments we saw that turmeric is one of the few substantive colours fixing itself on both cotton and wool, without any aid from a mordant or fixing agent. Magenta was also a substantive colour, but Alizarin was certainly not one of this class. Adjective Dyestuffs.
You will have gums and resins from the wood, calcium chloride from the bleach vats, acids from the "sours"; resin, and resin-soaps; there may also be alumina salts present. Now alumina, lime, resin, and resin-soaps, etc., precipitate dyestuffs, and also soap; if the water is alkaline, some of the mordants used may be precipitated and wasted, and very considerable damage done.
Word Of The Day
Others Looking