Registration Dossier
Registration Dossier
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EC number: 289-339-5 | CAS number: 87741-01-3
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
The reported solubility of 1,3-butadiene is 0.735 g/L at 20˚C.
Key value for chemical safety assessment
- Water solubility:
- 735 mg/L
- at the temperature of:
- 20 °C
Additional information
This study by McAuliffe (1966) predates the implementation of GLP and standard guidelines. The method is described in detail and is considered appropriate for determining the solubility of a gaseous substance. In addition, this reference was used as the key study in the EU RAR (2002) for 1,3-butadiene. It should be noted that the solubility was measured in a closed system with an equilibrium between the vapour and water phase. This is an artificial situation, and in the environment the observed solubility would be expected to be much less.
This was also supported by data estimated using a QSAR model (WSKOW v1.42) as 792.3 mg/L. Additionally, the International Chemical Safety Card (WHO ICSC, 2000) reported the water solubility of 1,3-Butadiene as 1 g/L.
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