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EC number: 300-634-0 | CAS number: 93951-12-3
- 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
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- March-April 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 019
- Report date:
- 2019
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: isothermal thermogravimetry
Test material
- Reference substance name:
- 2-[2,4-bis(tert-pentyl)phenoxy]-N-(3,5-dichloro-4-ethyl-2-hydroxyphenyl)butyramide
- EC Number:
- 300-634-0
- EC Name:
- 2-[2,4-bis(tert-pentyl)phenoxy]-N-(3,5-dichloro-4-ethyl-2-hydroxyphenyl)butyramide
- Cas Number:
- 93951-12-3
- Molecular formula:
- C28H39Cl2NO3
- IUPAC Name:
- 2-[2,4-bis(tert-pentyl)phenoxy]-N-(3,5-dichloro-4-ethyl-2-hydroxyphenyl)butyramide
- Test material form:
- solid
- Details on test material:
- Batch 44029
colour : White to off-white
retest date : 01/06/2019
Constituent 1
Results and discussion
Vapour pressure
- Key result
- Test no.:
- #1
- Temp.:
- 20 °C
- Vapour pressure:
- 0 Pa
Any other information on results incl. tables
The evaporation rate of the test item (VT) is calculated from the weight loss of the test item at defined temperatures in a constant stream of nitrogen over periods of time. Linear regression analysis of log VT versus 1/T (1000/T) is performed for the test item and for each reference item. The evaporation rates at 20 °C (VT, 20) are determined from these relationships. The relationship between the values of VT, 20 of the reference items and their known vapour pressures is estab-lished as a regression equation. The relationship between evapora-tion rate and vapour pressure, derived for 20 °C, includes the charac-teristics of the experimental setup, which are subsequently employed in the calculation of vapour pressure values at other temperatures.
VT= ΔmF∙t [g∙cm−2∙h−1]
where:
VT = evaporation rate [g∙cm−2∙h−1]
Δm = weight loss of the test item [g]
F = surface of the sample plate [cm2]
t = elapsed time for the weight loss [h]
Evaporation Rate Curve: log VT=a∙1000T+b
where:
a = slope
b = intercept
VT = evaporation rate [g∙cm−2∙h−1]
T = temperature [K]
The evaporation rates at VT 20 °C of the reference items are used to establish a regression of log PT ver-sus log VT, which characterizes the specific experimental setup. From this regression equation the va-pour pressure PT of the test item as a function of temperature is calculated based on the determined evaporation rate. logPT=C+D∙log VT
where:
PT = vapour pressure [Pa]
VT = evaporation rate [g∙cm−2∙h−1]
C, D = intercept and slope as constants specific for experi-mental set up determined from regression curve
Applicant's summary and conclusion
- Conclusions:
- The isothermal thermogravimetrical effusion method was applied for the deter-mination of the vapour pressure of the test item.
A value of the vapour pressure of the test item was determined using the data obtained between 160 °C and 190 °C. The vapour pressure of the test item was estimated to be 3.78 x 10-7 Pa at 20 °C. - Executive summary:
The evaluation of the vapour pressure was done with the reproducible weight loss values above > 1 μg/min in the temperature range between 160 °C and 200 °C.
The coefficient of correlation (R2) was 0.9981.
The coefficient of correlation (R2) was 0.9925.
The resulting equation was:
log PT=4.7740+1.1295∙log VT
Inserting the equation for log VT above, the following equation for the tempera-ture dependence of the vapour pressure of the test item is obtained:
log PT=C+D∙(a∙1000T +b)= C+(D∙b)+(D∙a∙1000 )/T
(where: a = -5.4828, b = 8.7997, C = 4.7740 and D = 1.1295)
With this equation, a following vapour pressure results were obtained:
3.78 x 10-7 Pa at 20 °C.
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