Registration Dossier
Registration Dossier
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EC number: 200-816-9 | CAS number: 74-86-2
Henry's Law constant
Administrative data
Link to relevant study record(s)
Description of key information
The experimental Henrys Law constant is 2.20E +003Pa m³/mol at 25°C
Key value for chemical safety assessment
- Henry's law constant (H) (in Pa m³/mol):
- 2 200
- at the temperature of:
- 25 °C
Additional information
The Henry's Law constant of acetylene has been calculated by QSAR modelling recommended by ECHA (2008) Guidance on information requirements and chemical safety assessment R7a Endpoint specific guidance. The calculated values (Henrywin v 3.2, USEPA 2008) indicate that volatilisation from water is expected to occur at a rapid rate. An experimental Henry's Law constant has been provided by EPISuite v4.0 based on vapour pressure and water solubility.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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