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EC number: 500-101-4 | CAS number: 38294-64-3
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- weight of evidence
- Reliability:
- 3 (not reliable)
- Rationale for reliability incl. deficiencies:
- other: read across from Isophoronediamin to the substance in this registation
- Guideline:
- other: no guideline reported
- Type of method:
- other: no method reported
- Temp.:
- 20 °C
- Vapour pressure:
- 0.015 mm Hg
- Remarks on result:
- other: experimental value
- Conclusions:
- The vapour pressure of isophoronediamine is reported as 0.015 mmHg at 20°C (2.0 Pa @20°C).
- Endpoint:
- vapour pressure
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- weight of evidence
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- other: read across from isophoronediamin to the substance in this registration
- Guideline:
- other: no guideline reported
- Type of method:
- other: no method reported
- Temp.:
- 20 °C
- Vapour pressure:
- 0.02 mBar
- Conclusions:
- The GESTIS Stoffdatenbank reports the vapour pressure of isophoronediamine of 0.02 mbar at 20°C (2.0 Pa @20°C).
- Endpoint:
- vapour pressure
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- weight of evidence
- Reliability:
- 3 (not reliable)
- Rationale for reliability incl. deficiencies:
- other: OECD method 104 referenced in SDS
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Temp.:
- 20 °C
- Vapour pressure:
- ca. 0.02 hPa
- Conclusions:
- The vapour pressure of isophoronediamine (IPD) at 25°C is 2.0 Pa.
- Endpoint:
- vapour pressure
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- weight of evidence
- Reliability:
- 3 (not reliable)
- Rationale for reliability incl. deficiencies:
- other: read across from isophoronediamin to the substance in this registration
- Guideline:
- other: no guideline reported
- GLP compliance:
- no
- Type of method:
- other: no method reported
- Temp.:
- 20 °C
- Vapour pressure:
- ca. 0.02 hPa
- Conclusions:
- The vapour pressure of 3-aminomethyl-3,5,5-trimethylcyclohexylamine (isophoronediamine, IPD) is reported as ca. 0.02 hPa at 20°C (2.0 Pa @20°C).
- Executive summary:
The SIDS reports the vapour pressure data of isophoronediamine that has been taken from Hommel, Handbuch der gefährlichen Güter, 1998
Referenceopen allclose all
Description of key information
Due to unreliable test results of the tested substance, the vapour pressure of isophoronediamine (IPD) of 2.58 Pa at 25°C was taken for the chemical safety assessment.
Key value for chemical safety assessment
- Vapour pressure:
- 2.58 Pa
- at the temperature of:
- 25 °C
Additional information
The vapour pressure of BADGE-IPD was determined by a slightly modified OECD 104 method at three different temperatures (10°C, 25°C and 50°C). The results were: 80.0 Pa@10°C, 146.6 Pa@25°C, 639.8 Pa@50°C.
These results are unreliable, because the measured vapour pressure is much higher than the v.p. of the pure amine (isophoronediamine, IPD, ECnr. 220-666-8; 2.58 Pa at 25°C). It is assumed that the tested sample has picked up significant amounts of moisture which has falsified the test results. Is it planned to run this v.p. test again under dry conditions.
Until new results will become available, the vapour pressure of the isophoronediamine (2.58 Pa @25°C) has therefore been used in a weight of evidence approach for the Chemical Safety Assessment of the substance. The rational for this is, because the amine is the component with the lowest molecular weight, the highest volatility and highest health hazard. It has therefore been used for the human health related exposure assessments.
The vapour pressure of the IPD is reported in other publications as: 2.0 Pa @20°C (SIDS, Hommel), which is in line with the other data.
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