On the Permeability of Caoutchouc for Various Substances in Acetone Solutions
On the Permeability of Caoutchouc for Various Substances in Acetone Solutions
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Guebhard (7) had found some years before an osmose of alcohol through gutta percha into pure water. Kahlen- berg (8) tested the permeability of vulcanized caoutchouc membrane when such solvents as water, toluene, benzene, acetic acid, and chiefly pyridine bathed it. He tried various salts, and got up osmotic pressures with them, or found that they passed throus;h the membrane very easily.
So much for the choutchouc. None of the men just mentioned used acetone as one of the liquids in which the ...septum was bathed, nor did W. Thomsen (9) include it in the list of the forty-four liquids whose effects upon Digitized by V^OOQ IC Digitized by Google the elasticity of India rubber he investigated. At the suggestion of Professor Kahlenberg I started a number of experiments with caoutchouc as the membrane, and acetone as the solvdnt. I wanted to find which of the substances soluble in acetone passed through the caoutchouc into pure acetone, and in a quasi^quantitative way how much passed through in a given time.
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You can find similar books in the "Read Also" column, or choose other free books by Purcell, John Daniel to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Guebhard (7) had found some years before an osmose of alcohol through gutta percha into pure water. Kahlen- berg (8) tested the permeability of vulcanized caoutchouc membrane when such solvents as water, toluene, benzene, acetic acid, and chiefly pyridine bathed it. He tried various salts, and got up osmotic pressures with them, or found that they passed throus;h the membrane very easily.
So much for the choutchouc. None of the men just mentioned used acetone as one of the liquids in which the ...septum was bathed, nor did W. Thomsen (9) include it in the list of the forty-four liquids whose effects upon Digitized by V^OOQ IC Digitized by Google the elasticity of India rubber he investigated. At the suggestion of Professor Kahlenberg I started a number of experiments with caoutchouc as the membrane, and acetone as the solvdnt. I wanted to find which of the substances soluble in acetone passed through the caoutchouc into pure acetone, and in a quasi^quantitative way how much passed through in a given time.
What to read after On the Permeability of Caoutchouc for Various Substances in Acetone Solutions?
You can find similar books in the "Read Also" column, or choose other free books by Purcell, John Daniel to read onlineMoreLess
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