You could have downloaded Toxchem 4.3.1 from our software library for free. The most popular versions of the tool are 4.3, 4.2 and 4.1. The most frequent installer filename for the program is: toxchem.exe. Our antivirus analysis shows that this download is clean. The software lies within Education Tools, more precisely Science Tools. The actual developer of the program is Hydromantis Environmental Software Solutions, Inc.
From the developer:
Toxchem is a program designed for estimating air emissions from wastewater collection, preliminary/primary/secondary treatment and disposal facilities. It contains an extensive database of chemical contaminants with their physical, chemical, sorption, biodegradation, and dissociation properties, including many of the more recently identified microconstituents (contaminants of emerging concerns).
You may want to check out more software, such as SatCalc, MathMatic or MemBrain, which might be similar to Toxchem.