Chemistry: molecular biology and microbiology – Process of utilizing an enzyme or micro-organism to destroy... – Destruction of hazardous or toxic waste
Patent
1996-03-04
1998-07-07
Gitomer, Ralph
Chemistry: molecular biology and microbiology
Process of utilizing an enzyme or micro-organism to destroy...
Destruction of hazardous or toxic waste
4352625, 548519, 556133, C12S 1300, C07D20700
Patent
active
057767637
ABSTRACT:
An analytical process for determining the biodegradability of chelants containing a double carboxyl-containing moiety of specified formula, based on the atomic distances between the carboxyl moieties, is disclosed. According to this process the biodegradability of a chelant can be rapidly determined by determining whether the distance between the carboxyl carbon atoms ("Distance A") falls within the range of from about 3.81.times.10.sup.-10 m to about 3.86.times.10.sup.-10 m; the distance between the carboxyl double bonded oxygen atoms ("Distance B") falls within the range from about 5.13.times.10.sup.-10 to about 5.52.times.10.sup.-10 m; and the distance between the carboxyl hydroxy oxygen atoms ("Distance C") falls within a range of from about 5.28.times.10.sup.- m to about 6.09.times.10.sup.-10 m; and whether the lowest unoccupied molecular orbital (LUMO) is on at least one carboxyl carbon atom of the moiety. If all of the above criteria are met, the compound is predicted to be biodegradable.
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Gitomer Ralph
The Dow Chemical Company
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