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Environmental fate & pathways

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The hydrolysis of BF4− occurs stepwise to BF3OH−, BF2(OH)2− , and BF(OH)3− and ultimately B(OH)4− accompanied with the formation of hydrofluoric acid . Due to the strong affinity of boron for fluoride, complete hydrolysis of BF4- occurs at low concentrations, yet with a slow initial step, especially at normal temperature and at a neutral or alkaline pH.


The concept of biodegradation does not apply to inorganic substances.


Given its ionic nature, tetrafluoroboric acid is expected to partition favourably to water rather than organic and fatty media.


No significant sorption behaviour is to be expected for potassium tetrafluoroborate or its dissociated/hydrolysed anions.