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oai:mountainscholar.org:10217/2343582025-12-30T03:30:32Zcom_10217_100532com_10217_100000com_10217_100369com_10217_100303col_10217_100536col_10217_100381

Hatheway, James L., Jr., author Walters, Richard, advisor Sanders, Tom, committee member Ward, Robert, committee member 2022-02-04T19:19:10Z 2022-02-04T19:19:10Z 1994 https://hdl.handle.net/10217/234358 https://doi.org/10.25675/3.024698 A UV-Visible spectrophotometric analytical procedure was developed and used to measure the water solubility of chlorothalonil at temperatures ranging from 8.5 to 37.5 °C. The effect of formulation chemicals present in BRAVO®500, a pesticide formulation containing chlorothalonil, on the apparent water solubility of chlorothalonil was also assessed. The water solubility was measured using a generator column technique while the apparent solubility enhancement of chlorothalonil by formulation chemicals in diluted formulation was evaluated by both generator column and batch shake techniques. A water solubility of 0.492 to 1.85 mg/L was found for a temperature range of 8.5 to 37.5 °C. The enthalpy of solution was found to be 7.96 kcal/mole. The apparent solubility enhancement due to formulation chemicals in dilute BRAVO®500 solution was 0.942 mg/L at 23 °C, which yielded a log Kdoc of 4.24. Based upon these results and typical formulation application rates, it is unlikely that the formulation chemicals present in the BRAVO® 500 formulation would increase the mobility of chlorothalonil in the environment. masters theses English eng Colorado State University. Libraries Catalog record number (MMS ID): 991023669569703361 SB951.3.H37 1994 1980-1999 Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright. Fungicides -- Solubility Fungicides -- Environmental aspects Determination of the water solubility of the fungicide chlorothalonil Text Master of Science (M.S.) Masters Civil Engineering Colorado State University This Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). open.access