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EC number: 430-320-1 | CAS number: -
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 29th April - 12th May 1998
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 998
- Report date:
- 1998
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- effusion method: vapour pressure balance
Test material
- Reference substance name:
- Pentaerythritol mixed esters with 2-methyl butyric acid, n-pentanoic acid, n-heptanoic acid, 3,5,5-trimethylhexanoic acid, n-octanoic acid, n-decanoic acid
- Cas Number:
- 141686-49-9
- IUPAC Name:
- Pentaerythritol mixed esters with 2-methyl butyric acid, n-pentanoic acid, n-heptanoic acid, 3,5,5-trimethylhexanoic acid, n-octanoic acid, n-decanoic acid
- Reference substance name:
- Trimethylol propane mixed esters with 2-methyl butyric acid, n-pentanoic acid, n-heptanoic acid, 3,5,5-trimethylhexanoic acid, n-octanoic acid, n-decanoic acid
- Cas Number:
- 141686-50-2
- IUPAC Name:
- Trimethylol propane mixed esters with 2-methyl butyric acid, n-pentanoic acid, n-heptanoic acid, 3,5,5-trimethylhexanoic acid, n-octanoic acid, n-decanoic acid
- Test material form:
- liquid
- Details on test material:
- Identification: Hatcol ® 1772
Appearance/physical state: Clear colorless liquid
Purity: 100% (no solvent present)
Composition: 70% pentaerythritol esters described by CAS# 141686-49-9; 30% trimethylolpropane esters described by CAS# 141686-50-2
Constituent 1
Constituent 2
Results and discussion
Vapour pressureopen allclose all
- Key result
- Test no.:
- #1
- Temp.:
- ca. 25 °C
- Vapour pressure:
- ca. -7.6 other: Log10 [Vp(25 degrees Centigrade)]
- Key result
- Test no.:
- #3
- Temp.:
- ca. 25 °C
- Vapour pressure:
- ca. -7.995 other: Log10 [Vp(25 degrees Centigrade)]
- Key result
- Test no.:
- #4
- Temp.:
- ca. 25 °C
- Vapour pressure:
- ca. -7.672 other: Log10 [Vp(25 degrees Centigrade)]
- Key result
- Test no.:
- #5
- Temp.:
- ca. 25 °C
- Vapour pressure:
- ca. -6.988 other: Log10 [Vp(25 degrees Centigrade)]
Any other information on results incl. tables
The test item did not change appearance under the conditions used in the determination.
A total of five runs were completed for the main sequence (see table below):
Summary of vapour pressure data
| Run | Log10[Vp(25°C)] |
| #1 | -7.600 |
| #2 | -10.348* |
| #3 | -7.995 |
| #4 | -7.672 |
| #5 | -6.988 |
| Mean = -7.564 | |
| Vapour pressure = 2.7 x 10 -8 Pa | |
* not included in the mean because it is inconsistent with all other runs.
Applicant's summary and conclusion
- Conclusions:
- Vapor Pressure determined to be 2.7 x 10-8 Pa at 25°C.
- Executive summary:
The vapour pressure has been determined to be 2.7 x 10-8 Pa at 25°C, using the vapor pressure balance method, designed to be compatible with Method A.4 Vapour Pressure of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 104 of the OECD Guidelines for Testing of Chemicals, 23 March 2006.
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