Registration Dossier
Registration Dossier
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EC number: 204-707-7 | CAS number: 124-64-1
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
THPC is expected to be infinitely soluble (highest tested concentration: 37.7 kg/L), as suggested by the read- across with its parent salt: THPS.
Key value for chemical safety assessment
- Water solubility:
- 37 700 g/L
- at the temperature of:
- 21 °C
Additional information
No data on dried THPC water solubility is available.
Because of the salt nature of THPC, hazard properties of chloride salt could be predicted to be equivalent to hazard properties of the sulphate salt (THPS). The read across with a similar substance as THPS is then considered as relevant.
The water solubility of dry THPS was determined under GLP, according OECD 105 guideline. A preliminary test to measure the solubility was performed by shaking weighed amounts of test substance and distilled water at 21 °C until complete dissolution. Only one phase was visible after 24h, the solution was deliquescent. It would be impractical to maintain pH values during the water solubility tests.
The composition of the test substance in water is pH and concentration dependent. The test stopped here and a definitive test by the column elution or flask shaking method was deemed unnecessary.
The dry THPS was then considered to be infinitely soluble, then THPC couls as well be considered as infinitely soluble.
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