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But when Maude attempted further conversation, the ascetic and acetic lady, intimating that it was prayer-time, and she could talk no more, pulled forth a huge rosary of wooden beads, from which the paint was nearly worn away, and began muttering Ave Marys in apparently interminable succession. "Now, Isabel," said Constance, "prithee do me to wit of divers matters I would fain know.
It will not be very long before you have thoroughly cleaned the eyes, while at the same time you have infused fresh life into them. To the water used a little vinegar or acetic acid should next be added, or Condy's fluid may be used when it is convenient. But care must be taken that no great smarting is caused. See Acetic Acid.
After this, steam is injected directly through the tube, k, in order to distill the acetic acid that still remains in the residuum, and which passes thus through the tube, e, into the worm, h, and flows into the two-necked bottle, S.
The acetic acid that accumulates in the boiler, C, must be again vaporized and treated until it no longer gives off any steam at all through the pipe, G. The amount of cooling water admitted into the worm, e, that traverses the head, D, is regulated according to the degree of concentration it is desired to give the acid.
It is alkaline or neutral to litmus paper. It is best to precipitate the mucin by acetic acid before making experiments; and to dilute the clear liquid with a little distilled water. Experiment 78. Test for bile pigments. Place a few drops of bile on a white porcelain slab.
In the course of his investigations, Pabst was led to a very practical method for preparing acetate of methyl, which consists in heating ethyl sulphuric acid to 135 deg. or 140 deg. C, and allowing a mixture of equal molecules of strong alcohol and acetic acid to flow into it. The details of his experiments and the method of purification will be published by the society. By E. PULCHER.
The acetate, previously crushed, is placed in the boiler, A, and the quantity of acid necessary to decompose it is added. The mass is afterward mixed with care by means of the stirrer, and the distillation may then proceed at once. The vapors of acetic acid that are disengaged enter the boiler, C, through the tube, d, and are kept hot by the steam.
The taste of sugar of lead is not the sum of the tastes of its component elements, acetic acid and lead or its oxide; nor is the color of blue vitriol a mixture of the colors of sulphuric acid and copper. This explains why mechanics is a deductive or demonstrative science, and chemistry not.
As yet our vinegar manufacturers have not applied to acetic fermentation the same principle which has been so successful in brewing namely, the use, as a starter of the fermentation, of a pure culture of the proper species of bacteria. This has been done experimentally and proves to be feasible.
The water will probably come out as fast as you send it in, but it may not come till a good quantity has gone in. Now, as you fill your syringe a second time with water at the same degree of heat, you will add a single drop of strong acetic acid, or twelve drops of white vinegar to a teacupful. You must be careful that this is not exceeded at this stage, or you will cause great pain.
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