RATE DEPENDENCE OF THE STOICHIOMETRY OF FORMIC ACID VAPOR PHOTOLYSIS

1963 ◽  
Vol 67 (4) ◽  
pp. 757-762
Author(s):  
Peter E. Yankwich ◽  
Edward F. Steigelmann
Keyword(s):  
Formic Acid ◽  
Rate Dependence ◽  
Acid Vapor

Acid-catalyzed Solvolysis of Isonitriles. I

1971 ◽  
Vol 49 (14) ◽  
pp. 2455-2459 ◽  
Author(s):  
Y. Y. Lim ◽  
A. R. Stein
Keyword(s):  
Formic Acid ◽  
Acid Catalysis ◽  
Hydrolysis Product ◽  
Rate Dependence ◽  
Linear Rate ◽  
First Order ◽  
Methyl Amine ◽  
Acid Catalyzed ◽  
Pseudo First Order ◽  
Hydrolysis Of

The acid-catalyzed hydrolysis of methyl isonitrile has been examined. The initial hydrolysis product is N-methylformamide which is further hydrolyzed to methyl amine and formic acid at a much slower rate. The hydrolysis to N-methylformamide is pseudo-first order in methyl isonitrile and shows a linear rate dependence on concentration of general (buffer) acid at fixed pH. The significance of general acid-catalysis in terms of the mechanism of the hydrolysis is considered and taken as evidence for carbon protonation rather than nitrogen protonation as the initiating step.

scholarly journals Robust Ag-Cu Sintering Bonding at 160 °C via Combining Ag2O Microparticle Paste and Pt-Catalyzed Formic Acid Vapor

Metals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 315 ◽  
Author(s):  
Liangliang He ◽  
Junlong Li ◽  
Xin Wu ◽  
Fengwen Mu ◽  
Yinghui Wang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Formic Acid ◽  
Material Selection ◽  
Structure Design ◽  
Acid Vapor ◽  
Higher Temperature ◽  
Cu Bonding ◽  
Bonding Method ◽  
Sintered Ag ◽  
Pt Catalyzed

With the assistance of Pt-catalyzed formic acid vapor, robust Ag-Cu bonding was realized at an ultra-low temperature of 160 °C under 3 MPa for 30 min via the sintering of Ag nanoparticles in situ generated from Ag2O microparticles. The Cu oxide layer at the interface after bonding can be eliminated, which improves the bond strength and electrical conductivity of the joint. A metallic bond contact between the sintered Ag and the Cu substrate is obtained without interfacial solid solution and intermetallic phases, and the shear strength is comparable to previous bonding at a higher temperature. The bonding mechanisms were figured out by comparing the bonding with and without the Pt-catalyzed formic acid vapor. This ultra-low temperature Ag-Cu bonding method may create more flexibilities in the structure design and material selection for power device integration.

Using formic acid vapor as reducer to prepare Pt nanoparticles supported on carbon nanofiber mats for methanol electrooxidation

2014 ◽  
Vol 51 ◽  
pp. 86-89 ◽  
Author(s):  
Miaoyu Li ◽  
Gaoyi Han ◽  
Binsheng Yang ◽  
Yunzhen Chang ◽  
Yaoming Xiao ◽  
...  
Keyword(s):  
Formic Acid ◽  
Carbon Nanofiber ◽  
Pt Nanoparticles ◽  
Methanol Electrooxidation ◽  
Acid Vapor ◽  
Nanofiber Mats

Identification of active transitions in a formic acid vapor laser

1977 ◽  
Vol 7 (4) ◽  
pp. 445-449 ◽  
Author(s):  
O I Baskakov ◽  
S F Dyubko ◽  
M V Moskienko ◽  
L D Fesenko
Keyword(s):  
Formic Acid ◽  
Vapor Laser ◽  
Acid Vapor

Chemical attack of optical glass surface by formic acid vapor

1975 ◽  
Vol 19 ◽  
pp. 221-239 ◽  
Author(s):  
Shoji Tsuchihashi ◽  
Akio Konishi ◽  
Yoji Kawamoto
Keyword(s):  
Formic Acid ◽  
Glass Surface ◽  
Optical Glass ◽  
Acid Vapor ◽  
Chemical Attack

Reductive Kinetic Study of Oxidized Cu Surface by Catalyzed Formic Acid Vapor

2016 ◽  
Author(s):  
P.W. Chou ◽  
J.M. Song ◽  
M. Akaike ◽  
M. Fujino ◽  
T. Suga ◽  
...  
Keyword(s):  
Formic Acid ◽  
Kinetic Study ◽  
Acid Vapor
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