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EC number: 213-234-5 | CAS number: 931-36-2
Henry's Law constant
Administrative data
Link to relevant study record(s)
Description of key information
From the water surface the substance will not evaporate into the atmosphere.
Key value for chemical safety assessment
- at the temperature of:
- 25 °C
Additional information
The Henry's Law Constant was calculated based on measured data for the vapour pressure and water solubility. The HLC resulted in a value of 2.52 E-07 Pa*m³/mol. This indicates that the substance will not evaporate from the water surface into the atmosphere. The bond estimation method gives a value of 0.615 Pa*m³/mol (HENRYWIN Program, v3.20; EPI Suite v4.10; BASF SE, 2011), which is representative for the uncharged molecule. At environmental conditions the molecule is expected to be ionised, therefore a pH-corrected Koc was calculated according to the REACH Guidance document (2008). The resulting Henry's Law constant was 7.72 E-09 at pH 7 (BASF, 2011).
Based on the pH-corrected HLC, the substance will not evaporate from the water surface into the atmosphere.
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