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EC number: 250-426-8 | CAS number: 31001-77-1
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
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- Endpoint summary
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- Ecotoxicological Summary
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- Short-term toxicity to fish
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- Long-term toxicity to aquatic invertebrates
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- Additional toxicological data
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
Vapour pressure [3-[dimethoxy(methyl)silyl]propanethiol]: 23 Pa at 25°C (QSAR)
Vapour pressure [3-(dihydroxymethylsilyl)propanethiol]: 0.0092 Pa at 25°C (QSAR)
Vapour pressure [methanol]: 12790 Pa at 20°C
Key value for chemical safety assessment
- Vapour pressure:
- 23 Pa
- at the temperature of:
- 25 °C
Additional information
A vapour pressure value of 23 Pa at 25°C was determined for the substance using a validated QSAR estimation method. The result is considered to be reliable.
In contact with water, the substance hydrolyses rapidly to form 3-(dihydroxymethylsilyl)propanethiol and methanol. The vapour pressure of the silanol hydrolysis product was predicted to be 0.0092 Pa at 25°C using a validated QSAR estimation method.
Methanol has a reported vapour pressure of 12790 Pa at 20°C (OECD 2004).
Reference:
OECD (2004): SIDS Initial Assessment Report for SIAM 19, Berlin, Germany, 18-20 October 2004, Methanol, CAS 67-56-1.
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