This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1903 Excerpt: ...amount of propyl acetate had been removed, the temperature did not reach 101-55 and the residue from the 11th fractionation (b.p. above 101-45) was placed in a new flask, v. At the end of the 12th fractionation the temperature rose only to 101-15 and the residue was placed in a third flask, x, and subsequently the ...
Read More
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1903 Excerpt: ...amount of propyl acetate had been removed, the temperature did not reach 101-55 and the residue from the 11th fractionation (b.p. above 101-45) was placed in a new flask, v. At the end of the 12th fractionation the temperature rose only to 101-15 and the residue was placed in a third flask, x, and subsequently the residues were placed in w, v.... Q, as shown in Table 38. Separation of Methyl Acetate.--It was not until the 5th fractionation that the first fraction began to boil at 57-1, the boiling point of methyl acetate, and it was not thought advisable to separate the first portion of the first distillate until the 8th fractionation. This portion and also the corresponding ones up to the 20th fractionation were collected together in a flask, A, after which the first portions were collected in B, C, D and E. Accumulation of Ethyl Acetate in Middle Fractions..--The presence of the middle substance, ethyl acetate, is not clearly indicated until the 4th fractionation, when the value of A w/A t for the 6th distillate (No. 11) is somewhat higher than for those above and below it; but the gradual accumulation of the ethyl acetate in the middle fractions in subsequent fractionations is clearly shown by the rise in the vn GRAPHICAL REPRESENTATION 135 value of A w/A t for the fractions 8 and 11 and, after the 10th fractionation, for fractions 9 and 10. The range of temperature for Nos. 9 and 10 was gradually diminished from 0-2 each in the 11th fractionation until no rise could be detected; there was, indeed, no perceptible rise of temperature during the collection of No. 11 in the 22nd and 23rd fractionations. It was therefore certain that after the 26th fractionation the tenth fraction was free from propyl acetate, and that the remaining fractions B to E and 5 to...
Read Less
Add this copy of Fractional Distillation (Paperback Or Softback) to cart. $17.35, new condition, Sold by BargainBookStores rated 3.0 out of 5 stars, ships from Grand Rapids, MI, UNITED STATES, published 2017 by Andesite Press.
Add this copy of Fractional Distillation to cart. $19.72, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of Fractional Distillation 1903 to cart. $23.58, new condition, Sold by Media Smart rated 3.0 out of 5 stars, ships from Hawthorne, CA, UNITED STATES, published by Facsimile Publisher.
Add this copy of Fractional Distillation to cart. $29.16, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
