Journal of Environmental Conservation Engineering

Online ISSN : 1882-8590
Print ISSN : 0388-9459
ISSN-L : 0388-9459

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Volume 21, Issue 5

Displaying 1-8 of 8 articles from this issue

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Prediction of Decomposition Properties of Chemical Substances. Part 1. Prediction of Hydrolysis Rates of Carbamate Compounds

Kazutoshi TANABE, Seiji TSUZUKI

1992 Volume 21 Issue 5 Pages 283-286
Published: May 30, 1992
Released on J-STAGE: March 18, 2010

DOIhttps://doi.org/10.5956/jriet.21.283

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A multiple linear regression analysis showed that the hydrolysis rate of carbamate compounds, which depends only on the chemical property, can be estimated from electronic σ_I values of three substituents. The estimated values of hydrolysis rate of 18 carbamate compounds agreed with experimental literature data within 2 orders of magnitude. In the case where the σ_I value of a substituent was not available, it was estimated from the correlation between σ_I and electron density on carboxyl group of a model compound. The electron density was calculated by semiempirical molecular orbital method. The result of this study suggests the feasibility of predicting the fate of organic compounds in the environment from their chemical structures.

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[title in Japanese]

Norio OBATA

1992 Volume 21 Issue 5 Pages 287-290
Published: May 30, 1992
Released on J-STAGE: March 18, 2010

DOIhttps://doi.org/10.5956/jriet.21.287

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[title in Japanese]

Yukitoshi ISHIOKA

1992 Volume 21 Issue 5 Pages 307-311
Published: May 30, 1992
Released on J-STAGE: March 18, 2010

DOIhttps://doi.org/10.5956/jriet.21.307

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[title in Japanese]

Kiyoshi TSUKAMOTO

1992 Volume 21 Issue 5 Pages 312-318
Published: May 30, 1992
Released on J-STAGE: July 22, 2010

DOIhttps://doi.org/10.5956/jriet.21.312

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Hideaki MIYATA

1992 Volume 21 Issue 5 Pages 319-327
Published: May 30, 1992
Released on J-STAGE: March 18, 2010

DOIhttps://doi.org/10.5956/jriet.21.319

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[title in Japanese]

Kohji YAMAMOTO

1992 Volume 21 Issue 5 Pages 328-332
Published: May 30, 1992
Released on J-STAGE: March 18, 2010

DOIhttps://doi.org/10.5956/jriet.21.328

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Diffusion Models for Transient Release

Overcamp T.J., Yoshinori ISHIKAWA, Masahiro OSAKO, Konosuke NISHIDA

1992 Volume 21 Issue 5 Pages 333-337
Published: May 30, 1992
Released on J-STAGE: March 18, 2010

DOIhttps://doi.org/10.5956/jriet.21.333

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[title in Japanese]

[in Japanese]

1992 Volume 21 Issue 5 Pages 338-343
Published: May 30, 1992
Released on J-STAGE: March 18, 2010

DOIhttps://doi.org/10.5956/jriet.21.338

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