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Environmental fate & pathways

Henry's Law constant

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Description of key information

From the water surface the substance will slowly evaporate into the atmosphere. 

Key value for chemical safety assessment

Additional information

QSAR-disclaimer 

In Article 13 of Regulation (EC) No 1907/2006, it is laid down that information on intrinsic properties of substances may be generated by means other than tests, provided that the conditions set out in Annex XI (of the same Regulation) are met. Furthermore according to Article 25 of the same Regulation testing on vertebrate animals shall be undertaken only as a last resort. 

According to Annex XI of Regulation (EC) No 1907/2006 (Q)SAR results can be used if (1) the scientific validity of the (Q)SAR model has been established, (2) the substance falls within the applicability domain of the (Q)SAR model, (3) the results are adequate for the purpose of classification and labeling and/or risk assessment and (4) adequate and reliable documentation of the applied method is provided. 

For the assessment of Methacrolein (Q)SAR results were used for Henry´s Law constant. The endpoint(s) sufficiently covered and suitable for risk assessment.