volume 42 issue 6 pages 1227-1231

Vapor Pressure of Agrochemicals by the Knudsen Effusion Method Using a Quartz Crystal Microbalance

Mark A. Goodman 1
1
 
Zeneca Ag Products, 1200 S. 7th Street, Richmond, California 94804
Publication typeJournal Article
Publication date1997-11-01
scimago Q2
wos Q2
SJR0.449
CiteScore4.0
Impact factor2.1
ISSN00219568, 15205134
General Chemistry
General Chemical Engineering
Abstract
Vapor pressure determination of agrochemicals is required for EPA and EC registration. The Knudsen effusion method is an approved regulatory method of performing vapor pressure measurements. The Knudsen effusion method is a dynamic technique based on the rate of escape of vapor molecules through an orifice into a vacuum. We have modified the Knudsen effusion apparatus, replacing a conventional microbalance with a quartz crystal microbalance (QCM). The QCM has a sensitivity of less than 1 ng; therefore, small mass rate losses can be observed, reducing experimental time. The use of the QCM allows rapid determination of vapor pressures as low as 10 μPa. The vapor pressure of several agrochemicals has been measured using this modified method, and the results agree with previously reported values. The results and methodology are discussed.
Found 
Found 

Top-30

Journals

1
Journal of Physical and Chemical Reference Data
1 publication, 5%
Review of Scientific Instruments
1 publication, 5%
Fluid Phase Equilibria
1 publication, 5%
Measurement Science and Technology
1 publication, 5%
Thermochimica Acta
1 publication, 5%
Thin Solid Films
1 publication, 5%
Journal of Chemical Thermodynamics
1 publication, 5%
Pest Management Science
1 publication, 5%
Journal of Heterocyclic Chemistry
1 publication, 5%
Journal of Physical Chemistry B
1 publication, 5%
Journal of Chemical & Engineering Data
1 publication, 5%
Industrial & Engineering Chemistry Research
1 publication, 5%
Measurement of the Thermodynamic Properties ofMultiple Phases
1 publication, 5%
Analytica Chimica Acta
1 publication, 5%
1

Publishers

1
2
3
4
5
6
Elsevier
6 publications, 30%
American Chemical Society (ACS)
3 publications, 15%
AIP Publishing
2 publications, 10%
Wiley
2 publications, 10%
IOP Publishing
1 publication, 5%
1
2
3
4
5
6
  • We do not take into account publications without a DOI.
  • Statistics recalculated weekly.

Are you a researcher?

Create a profile to get free access to personal recommendations for colleagues and new articles.
Metrics
20
Share
Cite this
GOST |
Cite this
GOST Copy
Goodman M. A. Vapor Pressure of Agrochemicals by the Knudsen Effusion Method Using a Quartz Crystal Microbalance // Journal of Chemical & Engineering Data. 1997. Vol. 42. No. 6. pp. 1227-1231.
GOST all authors (up to 50) Copy
Goodman M. A. Vapor Pressure of Agrochemicals by the Knudsen Effusion Method Using a Quartz Crystal Microbalance // Journal of Chemical & Engineering Data. 1997. Vol. 42. No. 6. pp. 1227-1231.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1021/je970111m
UR - https://doi.org/10.1021/je970111m
TI - Vapor Pressure of Agrochemicals by the Knudsen Effusion Method Using a Quartz Crystal Microbalance
T2 - Journal of Chemical & Engineering Data
AU - Goodman, Mark A.
PY - 1997
DA - 1997/11/01
PB - American Chemical Society (ACS)
SP - 1227-1231
IS - 6
VL - 42
SN - 0021-9568
SN - 1520-5134
ER -
BibTex |
Cite this
BibTex (up to 50 authors) Copy
@article{1997_Goodman,
author = {Mark A. Goodman},
title = {Vapor Pressure of Agrochemicals by the Knudsen Effusion Method Using a Quartz Crystal Microbalance},
journal = {Journal of Chemical & Engineering Data},
year = {1997},
volume = {42},
publisher = {American Chemical Society (ACS)},
month = {nov},
url = {https://doi.org/10.1021/je970111m},
number = {6},
pages = {1227--1231},
doi = {10.1021/je970111m}
}
MLA
Cite this
MLA Copy
Goodman, Mark A.. “Vapor Pressure of Agrochemicals by the Knudsen Effusion Method Using a Quartz Crystal Microbalance.” Journal of Chemical & Engineering Data, vol. 42, no. 6, Nov. 1997, pp. 1227-1231. https://doi.org/10.1021/je970111m.