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EC number: 200-909-4 | CAS number: 75-86-5
- 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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- Solubility in organic solvents / fat solubility
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- Auto flammability
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- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
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- Endpoint summary
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- Ecotoxicological Summary
- Aquatic toxicity
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- Additional toxicological data
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
The vapour pressure of ACH (2-hydroxy-2-methylpropanenitrile) was determined according to OECD Guideline 104 (Vapour Pressure Curve, dynamic method) for 0.3 hPa at 20°C.
Key value for chemical safety assessment
- Vapour pressure:
- 30 Pa
- at the temperature of:
- 293 K
Additional information
The vapour pressure of 2-hydroxy-2-methylpropanenitrile was determined according to OECD Guideline 104 (Vapour Pressure Curve, dynamic method) with a test apparatus according to ASTM D 1120 at pressures between approx. 10hPa and 45 hPa. The parameters of the Antoine equation ln p = A-B/(T-C) were determined for A = 20.1073, B = 6690.6 and c= 8.52 (p in kPa, T in K). The Vapour pressure is <1 hPa. The extrapolated vapour pressure is 0.3 hPa at 20°C.
AEGL committee (US-NAC, Actone Cyanohydrin, Interim Acute Exposure Guideline Levels (AEGLs), Interim final draft, 2005) reports 1.07 hPa at 20 °C (validity not assignable).
ECETOC (JACC report No. 53, Volume I, 2007) reports 1.43 and 4 hPa at 20 °C (validity not assignable).
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