Perchloric Acid Catalyzed Aromatic Mercuration in Acetic Acid Solution. II. The Substitution Process

1967 ◽  
Vol 32 (3) ◽  
pp. 752-755 ◽  
Author(s):  
A Kresge ◽  
J Brennan
Keyword(s):  
Acetic Acid ◽  
Acid Solution ◽  
Perchloric Acid ◽  
Acetic Acid Solution ◽  
Substitution Process ◽  
Acid Catalyzed

CATALYZED NITRATION OF AMINES: II. RELATIVE BASICITIES OF SECONDARY AMINES IN ACETIC ACID

1948 ◽  
Vol 26b (1) ◽  
pp. 104-113 ◽  
Author(s):  
G. E. Dunn ◽  
J. C. MacKenzie ◽  
George F Wright
Keyword(s):  
Acetic Acid ◽  
Acid Solution ◽  
Perchloric Acid ◽  
Acetic Acid Solution ◽  
Secondary Amines ◽  
Chloride Catalyst

Titration of a series of secondary amines with sulphuric or perchloric acid in acetic acid shows that those amines which do not require a chloride catalyst for their nitrations are more weakly proton-accepting than the amines which cannot be nitrated without catalyst. The weak proton-acceptance of imino-bis-acetonitrile which can be nitrated without catalyst is further typified by its tendency to co-ordinate with itself in 16% association in acetic acid solution. By contrast, dibutylamine, which cannot be nitrated without catalyst, is not associated in this medium.

Some Approaches to Viscometric Study of Chitosan in Acetic Acid Solution

2016 ◽  
Vol 10 (2) ◽  
pp. 135-139 ◽  
Author(s):  
Valentina Chernova ◽  
◽  
Angela Shurshina ◽  
Elena Kulish ◽  
Gennady Zaikov ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Acid Solution ◽  
Intrinsic Viscosity ◽  
Acetic Acid Solution ◽  
Conformational State ◽  
Macromolecular Coil ◽  
Degree Of Swelling ◽  
Current Value ◽  
Viscometric Study

Some ways of estimating the values of the intrinsic viscosity of chitosan were analyzed. It was shown that the method of Irzhak and Baranov for estimating the current value of the intrinsic viscosity allows to adequately estimates the conformational state of the macromolecular coil and its degree of swelling.

Compatibility studies of chitosan/PVA blend in 2% aqueous acetic acid solution at 30°C

2010 ◽  
Vol 82 (2) ◽  
pp. 251-255 ◽  
Author(s):  
H.M.P. Naveen Kumar ◽  
M.N. Prabhakar ◽  
C. Venkata Prasad ◽  
K. Madhusudhan Rao ◽  
T.V. Ashok Kumar Reddy ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Acid Solution ◽  
Acetic Acid Solution ◽  
Aqueous Acetic Acid ◽  
Compatibility Studies ◽  
Aqueous Acetic Acid Solution
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