Slip at the Wall and Extrudate Roughness with Aqueous Solutions of Polyvinyl Alcohol and Sodium Borate

1981 ◽  
Vol 25 (1) ◽  
pp. 95-114 ◽  
Author(s):  
A. M. Kraynik ◽  
W. R. Schowalter
2013 ◽  
Vol 12 (7) ◽  
pp. 1323-1328 ◽  
Author(s):  
Lujun Chen ◽  
Weihua Sun ◽  
Jinping Tian ◽  
Jianlong Wang ◽  
Shijun He

1984 ◽  
Vol 67 (4) ◽  
pp. 844-845
Author(s):  
Naomi Richfield-Fratz

Abstract 4,4'-(Diazoamino)-bis(5-methoxy-2-methylbenzenesuIfonic acid), when present as a reaction by-product in FD&C Red No. 40, is shown to decompose rapidly in aqueous solutions of the color additive. The decomposition is halted by the addition of sodium borate buffer. Quantitationly liquid chromatography shows that decomposition is nonlinear with time and follows approximate first order kinetics.


1964 ◽  
Vol 37 (4) ◽  
pp. 559-563 ◽  
Author(s):  
Kiyoshi Arakawa ◽  
Nobuo Takenaka ◽  
Mineo Watase ◽  
Kazunari Kubota

1958 ◽  
Vol 31 (122) ◽  
pp. 256-256
Author(s):  
J. Berkowitch ◽  
A. Charlesby ◽  
V. Desreux

2017 ◽  
Vol 17 (3) ◽  
pp. 439 ◽  
Author(s):  
Roto Roto ◽  
Marcelina Marcelina ◽  
Nurul Hidayat Aprilita ◽  
Mudasir Mudasir ◽  
Taufik Abdillah Natsir ◽  
...  

Analysis of Fe3+ ion present in aqueous solutions is always of interests. Recently, this ion has been analyzed by colorimetric methods using colloid of silver nanoparticles (AgNPs) in capping agents of polymers. The reaction mechanism between AgNPs and Fe3+ is still subject to the further investigation. In this work, 1,10-phenanthroline was used to probe the reaction mechanism between AgNPs and Fe3+ ion in the solution. The colloids of AgNPs were prepared in the polyvinyl alcohol (PVA) solution and reacted with Fe3+. The colloid surface plasmon absorbance decreases linearly along with the increase in Fe3+ concentration. The addition of 1,10-phenanthroline to mixture changes the solution to red, indicating that the reaction produces Fe2+. This suggests that the reduction of the AgNPs absorbance is the result of oxidation of the Ag nanoparticles along with the reduction of Fe3+.


2019 ◽  
Vol 51 (3) ◽  
pp. 199-203 ◽  
Author(s):  
G. R. Ul’yabaeva ◽  
E. A. Podorozhko ◽  
N. R. Kil’deeva ◽  
V. I. Lozinskii

2018 ◽  
Vol 50 (3) ◽  
pp. 161-165
Author(s):  
D. V. Vishnevetskii ◽  
V. S. Laguseva ◽  
A. I. Ivanova ◽  
S. D. Khizhnyak ◽  
P. M. Pakhomov

2006 ◽  
Vol 79 (12) ◽  
pp. 2007-2012 ◽  
Author(s):  
A. M. Bochek ◽  
I. L. Shevchuk ◽  
L. M. Kalyuzhnaya

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