Registration Dossier
Registration Dossier
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EC number: 233-118-8 | CAS number: 10039-54-0
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:
- 20 °C
Additional information
Summary according to the volatilization potential as given EU-RAR Draft 14. May 2008
Bis(hydroxylammonium)sulphate is a salt which does not exhibit any measurable vapour pressure and does not sublime. The water-solubility is high, and water is the target compartment in the environment. In the aqueous phase, the substance is expected to dissociate, and hence not volatile. According to these findings, volatilisation from the aqueous phase can be excluded.
The volatility of hydroxylamine is also very low. Using the model EPIWIN, the Henry coefficient is calculated 0.0007 Pa m³/mol and the SPARC model reveals a value of 0.025 Pa m³/mol. Emissions into the atmosphere can be excluded.
Reference:
ECB (2008). EU-RAR Draft, Bis-(hydroxylammonium)sulphate, CAS: 10039 -54 -0,14. May 2008
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