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Physical & Chemical properties

Water solubility

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Description of key information

Water solubility of barium carbonate: ≥14 mg/L at 20 °C. According to Gmelin (2009) the water solubility of the test substance is not dependant on temperature (<3%/°C).
In the Transformation/Dissolution test, the solubility resulted after 7 days in modified ISO 6341 media at pH 6 in 3.82 and in 54.1 mg/L dissolved barium at the 10 and 100 mg/L loading, respectively.

Key value for chemical safety assessment

Additional information

According to reliable handbook data (e.g. CRC handbook) the water solubility of barium carbonate is ≥14 mg/L at 20 °C. Handbook data considered to be from a trusted source acc. to "ECHA, Guidance on information requirements and chemical safety assessment – Chapter R.7a: Endpoint specific guidance" and therefore, the water solubility of ≥14 mg/L could be regarded as valid.

In the Transformation/Dissolution test, 3.82 and 54.1 mg/L dissolved barium were measured at the 10 and 100 mg/L loading, respectively, in modified ISO 6341 media at the target pH of 6 after 7 days.