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Physical & Chemical properties

Water solubility

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water solubility
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance is hydrolytically unstable at pH 4, 7 and 9 (half-life less than 12 hours)

Description of key information

Data Waived

Key value for chemical safety assessment

Additional information

Value used for CSA: TPA: 15 mg/L at 20ºC

Due to the rapid hydrolysis of the test substance, data for the primary degradation product, terephthalic acid, is provided. This solubility reflects the water solubility of the neutral form of the TPA. Under environmental conditions, the TPA will exist primarily in anionic form and the water solubility will be higher than reported.