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Physical & Chemical properties

Water solubility

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Description of key information

The water solubility of KBF4 is 5.40 g/L at 22˚C and pH = 3.0

Key value for chemical safety assessment

Water solubility:
5.4 g/L
at the temperature of:
22 °C

Additional information

The water solubility of KBF4 was determined in a GLP-compliant study according to OECD TG 105. The BF4- concentrations (expressed as KBF4) were determined after t = 1, 2, 3, 4, 5, 6, 24, 48 and 72 hours. The water solubility for KBF4 determined at each time point did not differ with more than 10% from the water solubility determined at t = 1 hour, which indicates that KBF4 dissolves to its maximum water solubility within 1 hour. The BF4- concentrations measured after 48- and 72-hour incubation did not differ by more than 15%. Therefore the water solubility test is considered to be satisfactory. The water solubility of KBF4, defined as the average value of the determinations after 24, 48 and 72 hours, is 5.40 g/L.