Registration Dossier
Registration Dossier
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EC number: 943-366-5 | CAS number: -
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
WoE approach was used to select the key value from the vapour pressure values of the constituents of the substance.
Key value for chemical safety assessment
- Vapour pressure:
- 0.68 kPa
- at the temperature of:
- 25 °C
Additional information
The substance is composed of acetic anhydride (5-10 wt. %), adipic acid,di-anhydride with bis(acetic acid) (50-62 wt. %) and acetic acid (30-35 wt. %). According to the current information the physical and chemical properties of the substance are anyhow governed by the properties of acetic anhydride due to several possible side reactions and the decomposition of the product. Therefore vapour pressure of acetic anhydride (0.68 kPa at 25 deg C) is used as a key value in CSA.
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