Spectator Ions ARE Important! A Kinetic Study of the Copper−Aluminum Displacement Reaction

2010 ◽  
Vol 87 (6) ◽  
pp. 616-618 ◽  
Author(s):  
Sabrina G. Sobel ◽  
Skyler Cohen
Keyword(s):  
Kinetic Study ◽  
Displacement Reaction ◽  
Copper Aluminum

The use of rotating cylinders in the study of metal displacement (cementation) reactions

1977 ◽  
Vol 30 (2) ◽  
pp. 395 ◽  
Author(s):  
JM Higgs ◽  
F Lawson ◽  
GP Power ◽  
IM Ritchie
Keyword(s):  
Mass Transport ◽  
Kinetic Study ◽  
Rotating Cylinder ◽  
Empirical Equations ◽  
Displacement Reaction ◽  
Rotating Cylinders ◽  
Zinc Metal ◽  
Cylinder Length ◽  
Diffusion Controlled

The use of rotating zinc cylinders in a kinetic study of the diffusion- controlled displacement reaction between zinc metal and copper(II) ions is reported. It is found that the results are a good fit to the empirical equations which have been previously established for mass transport to a rotating cylinder. Some limitations to the technique are noted, including an effect which becomes more pronounced as the cylinder length is reduced.

A kinetic study of controlling nitrogen in process for boron steel by using30N2isotope gas

2008 ◽  
Vol 105 (12) ◽  
pp. 601-608
Author(s):  
Seung Min Han ◽  
Dong Joon Min ◽  
Joo Hyun Park ◽  
Jung Ho Park ◽  
Jong Min Park
Keyword(s):  
Kinetic Study ◽  
Boron Steel

Kinetic Study of the Effect of Heparin on the Amidase Activity of Trypsin, Plasmin and Urokinase

1983 ◽  
Vol 49 (03) ◽  
pp. 199-203 ◽  
Author(s):  
V M Yomtova ◽  
N A Stambolieva ◽  
B M Blagoev
Keyword(s):  
Kinetic Study ◽  
Active Center ◽  
Simultaneous Presence ◽  
Amidase Activity ◽  
Competitive Inhibitors ◽  
Uncompetitive Inhibitor

SummaryIt was found that the effect of heparin on the amidase activity of urokinase (E C 3.4.21.31), plasmin (E C 3.4.21.7) and trypsin (E C 3.4.21.4) depended on the substrate used. No effect of heparin on the amidase activity of urokinase and trypsin was observed when Pyro Glu-Gly-Arg-p-nitroanilide (S-2444) and α-N-acetyl-L-lysine-p-nitroanilide (ALNA) were used as substrates. Heparin acted as a uncompetitive inhibitor of trypsin (Ki = 1.2×10-6 M), plasmin (Ki = 4.9×10-6 M) and urokinase (Ki = l.0×10-7 M) when Bz-Phe-Val-Arg-p-nitroanilide (S-2160), H-D-Val-Leu-Lys-p-nitroanilide (S-2251) and plasminogen, respectively, were used as substrates. These results, as well as the data obtained by studying the effect of the simultaneous presence of heparin and competitive inhibitors suggest that although heparin is not bound at the active center of these enzymes, it may influence the effectivity of catalysis.

A kinetic study of the metathesis of propene on a rhenium-aluminium catalyst

1981 ◽  
Vol 31 (1) ◽  
pp. 388-394 ◽  
Author(s):  
Mahmoud El-Sawi ◽  
Antonio Iannibello ◽  
Fernando Morelli ◽  
Ganfranco Gatalano ◽  
Francesco Intrieri ◽  
...  
Keyword(s):  
Kinetic Study
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