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EC number: 486-070-7 | CAS number: -
- 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
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- from 11 OCT 2007 to 5 DEC 2007
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- gas saturation method
- Temp.:
- 25 °C
- Vapour pressure:
- 11 Pa
- Remarks on result:
- other: measured
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 10 Pa
- Remarks on result:
- other: calculated
- Temp.:
- 20 °C
- Vapour pressure:
- 6.3 Pa
- Remarks on result:
- other: calculated
- Temp.:
- 15 °C
- Vapour pressure:
- 4.1 Pa
- Remarks on result:
- other: measured
- Temp.:
- 5 °C
- Vapour pressure:
- 1.3 Pa
- Remarks on result:
- other: measured
- Conclusions:
- The vapor pressure of DIMETHYL 2-METHYL GLUTARATE was measured at test temperatures of 25 °C, 15 °C and 5 °C and was determined to be 11 Pa at 25 °C, 4.1 Pa at 15 °C, 1.3 Pa at 5 °C.
The vapor pressure of DIMETHYL 2-METHYL GLUTARATE at 25 °C and 20 °C were interpolated from the vapor pressure curve and were calculated to be 10 Pa at 25 °C and 6.3 Pa at 20 °C. - Executive summary:
The vapor pressure of DIMETHYL 2-METHYL GLUTARATE was determined according to the EEC Directive 92/69, A.4 ”Vapour Pressure” (1992) and the OECD guideline No. 104, ”Vapour Pressure” (1995) using the gas saturation method.
The vapor pressure of DIMETHYL 2-METHYL GLUTARATE was measured at test temperatures of 25 °C, 15 °C and 5 °C and was determined to be 11 Pa at 25 °C, 4.1 Pa at 15 °C, 1.3 Pa at 5 °C.
The vapor pressure of DIMETHYL 2-METHYL GLUTARATE at 25 °C and 20 °C were interpolated from the vapor pressure curve and were calculated to be 10 Pa at 25 °C and 6.3 Pa at 20 °C.
Reference
The experiments were performed at 25 °C, 15 °C and 5 °C. To ensure saturation control, three different flow rates were used at each temperature.
The experimental results lead to the conclusion that the vapor pressure of the test item DIMETHYL 2-METHYL GLUTARATE is:
11 Pa at 25 °C
4.1 Pa at 15 °C
1.3 Pa at 5 °C
The trapping efficiency of the test item DIMETHYL 2-METHYL GLUTARATE in the first cooling trap was very good. Between 96% and 100% of the test item was trapped in the first cooling trap.
Table 1: Results of the vapor pressure determination of DIMETHYL 2-METHYL GLUTARATE / Trapping efficiency of DIMETHYL 2-METHYL GLUTARATE
Column N°. |
Temp. (°C) |
Volume* V2 (mL) |
Amount of the test item in trap 1 (µg) |
Amount of test item in trap 2 (µg) |
Total amount of test item (µg) |
Vapor pressure (Pa) |
Average vapor pressure (Pa) |
Trapping effeciency 1sttrap (%) |
1 2 3 |
25.6 |
2820 3381 3781 |
2137.248 2569.199 2895.697 |
5.052 9.278 12.330 |
2142.300 2578.476 2908.027 |
11 11 11 |
11 |
99.76 99.64 99.58 |
1 2 3 |
15.45 |
2801 3408 3870 |
818.706 1011.861 1125.855 |
9.328 7.482 11.199 |
828.034 1019.342 1137.054 |
4.1 4.1 4.0 |
4.1 |
98.87 99.27 99.02 |
1 2 3 |
5.1 |
4307 5154 5857 |
427.225 458.720 583.651 |
16.497 7.638 10.408 |
443.722 466.358 594.058 |
1.4 1.2 1.3 |
1.3 |
96.28 98.36 98.25 |
* corrected volume at test temperature as calculated under “volume correction”
The vapor pressure of DIMETHYL 2-METHYL GLUTARATE at 25 °C and 20 °C were calculated by interpolation from the vapor pressure curve and were calculated to be 10 Pa at 25 °C and 6.3 at 20 °C.
Table 2: Data of the vapor pressure curve for DIMETHYL 2-METHYL GLUTARATE
T (°C) |
1/T (Kelvin) |
Ln Pvp |
25.6
|
0.00335 0.00335 0.00335 |
2.38 2.39 2.40 |
15.45
|
0.00347 0.00347 0.00347 |
1.40 1.42 1.40 |
5.1
|
0.00359 0.00359 0.00359 |
0.31 0.18 0.30 |
The tabulated results represent rounded-off values obtained by calculations based on the exact
raw data.
Y = b * x + a with Y = ln (Pvp mean in Pa)
x = 1/T (Kelvin)
b = -8612.104 (slope)
a = 31.23 (y-axis intercept)
r2 = 0.9982
Description of key information
The vapor pressure of DIMETHYL 2-METHYL GLUTARATE was measured at test temperatures of 25 °C, 15 °C and 5 °C and was determined to be 11 Pa at 25 °C, 4.1 Pa at 15 °C, 1.3 Pa at 5 °C.
The vapor pressure of DIMETHYL 2-METHYL GLUTARATE at 25 °C and 20 °C were interpolated from the vapor pressure curve and were calculated to be 10 Pa at 25 °C and 6.3 Pa at 20 °C.
Key value for chemical safety assessment
- Vapour pressure:
- 10 Pa
- at the temperature of:
- 25 °C
Additional information
One experimental study, scored as Klimisch 1, is available (Badt-Tognucci A., 2007) and selected as a key study.
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