Location: GLO - Global
This dataset represents the production of 1 kg of pure potassium hydroxide (KOH), which is commercialized in the form of a 85.6% aqueous solution. Potassium hydroxide forms solid flakes at room temperature and is used primarily for the production of potassium phosphates, as well as potassium soaps and detergents. It is manufactured by the electrolysis of potassium chloride brine in electrolytical cells.
This dataset is based on industrial as well as literature data. The original data is published in the ecoinvent report No. 17 (pg 702), that describes the production of 1 kg of 85.6% (~90%) pure KOH. The data in this report was scaled up to represent the product of interest.
References:
Jungbluth, N., Chudacoff, M., Dauriat, A., Dinkel, F., Doka, G., Faist Emmenegger, M., Gnansounou, E., Kljun, N., Schleiss, K., Spielmann, M., Stettler, C., Sutter, J. 2007: Life Cycle Inventories of Bioenergy. ecoinvent report No. 17, Swiss Centre for Life Cycle Inventories, Dübendorf, CH.
Undefined unit processes (UPRs) are the unlinked, multi-product activity datasets that form the basis for all of the system models available in the ecoinvent database. This is the way the datasets are obtained and entered into the database by the data providers. These activity datasets are useful for investigating the environmental impacts of a specific activity (gate-to-gate), without regard to its upstream or downstream impacts.