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EC number: 700-485-5 | CAS number: 939402-02-5
- 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
- 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:
- 15th January 2010 to 23rd February 2010.
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Date of inspection: 15/09/09 Date of Signature: 26/11/09
- Type of method:
- effusion method: vapour pressure balance
Test material
- Reference substance name:
- [4-(2-methylbutan-2-yl)phenyl]x[2,4-bis(2-methylbutan-2-yl)]3-x phosphite (where x = 0, 1, 2, 3)
- IUPAC Name:
- [4-(2-methylbutan-2-yl)phenyl]x[2,4-bis(2-methylbutan-2-yl)]3-x phosphite (where x = 0, 1, 2, 3)
- Details on test material:
- Sponsor's identification : DVS005u (aka Weston 705)
Description : clear colourless viscous liquid
Batch number : MW9F23A901
Date received : 05 November 2009
Expiry date : 15 June 2010
Storage conditions : approximately 4°C, under nitrogen, in the dark
Constituent 1
Results and discussion
Vapour pressure
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
Transition / decomposition
- Transition / decomposition:
- no
Any other information on results incl. tables
Run1
Temperature (ºC) |
Temperature (K) |
Reciprocal Temperature (K-1) |
Mass Difference (µg) |
Mass Difference (kg) |
Vapour Pressure (Pa) |
Log10Vp |
175 |
448.15 |
0.002231396 |
380.86 |
3.809E-07 |
0.528731256 |
-0.276765016 |
176 |
449.15 |
0.002226428 |
400.72 |
4.007E-07 |
0.556302024 |
-0.254689360 |
177 |
450.15 |
0.002221482 |
431.72 |
4.317E-07 |
0.599337966 |
-0.222328210 |
178 |
451.15 |
0.002216558 |
468.06 |
4.681E-07 |
0.649787196 |
-0.187228850 |
179 |
452.15 |
0.002211655 |
491.85 |
4.919E-07 |
0.682813811 |
-0.165697703 |
180 |
453.15 |
0.002206775 |
528.82 |
5.288E-07 |
0.734137643 |
-0.134222507 |
181 |
454.15 |
0.002201916 |
567.99 |
5.680E-07 |
0.788515638 |
-0.103189689 |
182 |
455.15 |
0.002197078 |
611.47 |
6.115E-07 |
0.848877018 |
-0.071155224 |
183 |
456.15 |
0.002192261 |
667.44 |
6.674E-07 |
0.926577717 |
-0.033118148 |
184 |
457.15 |
0.002187466 |
736.91 |
7.369E-07 |
1.023019875 |
0.009884071 |
185 |
458.15 |
0.002182691 |
804.02 |
8.040E-07 |
1.116185749 |
0.047736473 |
A plot of Log10(vapour pressure (Pa)) versus reciprocal temperature (1/T(K)) for Run 1 gives the following statistical data using an unweighted least squares treatment.
Slope -6610.581
Standard deviation in slope 177.616
Intercept 14.462
Standard deviation in intercept 0.392
The results obtained indicate the following vapour pressure relationship:
Log10(Vp (Pa)) = -6610.581/temp(K) + 14.462
The above yields a vapour pressure (Pa) at 298.15 K with a common logarithm of -7.710.
Run 1 - Graph of Log10Vapour Pressure vs Reciprocal Temperature see attached Run 1 to 9 - Graph of Log10 Vapour Pressure vs Reciprocal Temperature.
Run 2
Temperature (ºC) |
Temperature (K) |
Reciprocal Temperature (K-1) |
Mass Difference (µg) |
Mass Difference (kg) |
Vapour Pressure (Pa) |
Log10Vp |
175 |
448.15 |
0.002231396 |
383.13 |
3.831E-07 |
0.531882597 |
-0.274184219 |
176 |
449.15 |
0.002226428 |
405.19 |
4.052E-07 |
0.562507529 |
-0.249871660 |
177 |
450.15 |
0.002221482 |
438.63 |
4.386E-07 |
0.608930816 |
-0.215432047 |
178 |
451.15 |
0.002216558 |
472.30 |
4.723E-07 |
0.655673403 |
-0.183312433 |
179 |
452.15 |
0.002211655 |
509.04 |
5.090E-07 |
0.706677935 |
-0.150778469 |
180 |
453.15 |
0.002206775 |
551.98 |
5.520E-07 |
0.766289656 |
-0.115607037 |
181 |
454.15 |
0.002201916 |
598.44 |
5.984E-07 |
0.830788039 |
-0.080509764 |
182 |
455.15 |
0.002197078 |
643.42 |
6.434E-07 |
0.893231803 |
-0.049035822 |
183 |
456.15 |
0.002192261 |
698.68 |
6.987E-07 |
0.969946841 |
-0.013252067 |
184 |
457.15 |
0.002187466 |
754.73 |
7.547E-07 |
1.047758601 |
0.020261235 |
185 |
458.15 |
0.002182691 |
805.20 |
8.052E-07 |
1.117823891 |
0.048373387 |
A plot of Log10(vapour pressure (Pa)) versus reciprocal temperature (1/T(K)) for Run 2 gives the following statistical data using an unweighted least squares treatment.
Slope -6791.343
Standard deviation in slope 64.728
Intercept 14.873
Standard deviation in intercept 0.143
The results obtained indicate the following vapour pressure relationship:
Log10(Vp (Pa)) = -6791.343/temp(K) + 14.873
The above yields a vapour pressure (Pa) at 298.15 K with a common logarithm of -7.905.
Run 2 - Graph of Log10Vapour Pressure vs Reciprocal Temperature see attached Run 1 to 9 - Graph of Log10 Vapour Pressure vs Reciprocal Temperature.
Run 3
Temperature (ºC) |
Temperature (K) |
Reciprocal Temperature (K-1) |
Mass Difference (µg) |
Mass Difference (kg) |
Vapour Pressure (Pa) |
Log10Vp |
175 |
448.15 |
0.002231396 |
382.98 |
3.830E-07 |
0.531674359 |
-0.274354284 |
176 |
449.15 |
0.002226428 |
401.03 |
4.010E-07 |
0.556732383 |
-0.254353516 |
177 |
450.15 |
0.002221482 |
434.39 |
4.344E-07 |
0.603044610 |
-0.219650560 |
178 |
451.15 |
0.002216558 |
468.30 |
4.683E-07 |
0.650120378 |
-0.187006221 |
179 |
452.15 |
0.002211655 |
505.04 |
5.050E-07 |
0.701124911 |
-0.154204602 |
180 |
453.15 |
0.002206775 |
543.73 |
5.437E-07 |
0.754836543 |
-0.122147083 |
181 |
454.15 |
0.002201916 |
577.17 |
5.772E-07 |
0.801259830 |
-0.096226629 |
182 |
455.15 |
0.002197078 |
627.49 |
6.275E-07 |
0.871116882 |
-0.059923570 |
183 |
456.15 |
0.002192261 |
682.83 |
6.828E-07 |
0.947942980 |
-0.023217785 |
184 |
457.15 |
0.002187466 |
740.52 |
7.405E-07 |
1.028031480 |
0.012006414 |
185 |
458.15 |
0.002182691 |
782.83 |
7.828E-07 |
1.086768600 |
0.036137082 |
A plot of Log10 (vapour pressure (Pa)) versus reciprocal temperature (1/T(K)) for Run 3 gives the following statistical data using an unweighted least squares treatment.
Slope -6568.269
Standard deviation in slope 92.203
Intercept 14.373
Standard deviation in intercept 0.203
The results obtained indicate the following vapour pressure relationship:
Log10(Vp (Pa)) = -6568.269/temp(K) + 14.373
The above yields a vapour pressure (Pa) at 298.15 K with a common logarithm of -7.657.
Run 3 - Graph of Log10Vapour Pressure vs Reciprocal Temperature see attached Run 1 to 9 - Graph of Log10 Vapour Pressure vs Reciprocal Temperature.
Run 4
Temperature (ºC) |
Temperature (K) |
Reciprocal Temperature (K-1) |
Mass Difference (µg) |
Mass Difference (kg) |
Vapour Pressure (Pa) |
Log10Vp |
175 |
448.15 |
0.002231396 |
382.11 |
3.821E-07 |
0.530466576 |
-0.275341975 |
176 |
449.15 |
0.002226428 |
401.97 |
4.020E-07 |
0.558037344 |
-0.253336737 |
177 |
450.15 |
0.002221482 |
432.82 |
4.328E-07 |
0.600865048 |
-0.221223058 |
178 |
451.15 |
0.002216558 |
456.13 |
4.561E-07 |
0.633225300 |
-0.198441742 |
179 |
452.15 |
0.002211655 |
484.55 |
4.846E-07 |
0.672679541 |
-0.172191781 |
180 |
453.15 |
0.002206775 |
525.68 |
5.257E-07 |
0.729778518 |
-0.136808925 |
181 |
454.15 |
0.002201916 |
584.00 |
5.840E-07 |
0.810741620 |
-0.091117532 |
182 |
455.15 |
0.002197078 |
639.73 |
6.397E-07 |
0.888109138 |
-0.051533661 |
183 |
456.15 |
0.002192261 |
688.01 |
6.880E-07 |
0.955134147 |
-0.019935628 |
184 |
457.15 |
0.002187466 |
736.52 |
7.365E-07 |
1.022478455 |
0.009654166 |
185 |
458.15 |
0.002182691 |
797.59 |
7.976E-07 |
1.107259261 |
0.044249322 |
A plot of Log10(vapour pressure (Pa)) versus reciprocal temperature (1/T(K)) for Run 4 gives the following statistical data using an unweighted least squares treatment.
Slope
-6770.783
Standard deviation in slope 187.810
Intercept 14.818
Standard deviation in intercept 0.414
The results obtained indicate the following vapour pressure relationship:
Log10(Vp (Pa)) = -6770.783/temp(K) + 14.818
The above yields a vapour pressure (Pa) at 298.15 K with a common logarithm of -7.891.
Run 4 - Graph of Log10Vapour Pressure vs Reciprocal Temperature see attached Run 1 to 9 - Graph of Log10 Vapour Pressure vs Reciprocal Temperature.
Run 5
Temperature (ºC) |
Temperature (K) |
Reciprocal Temperature (K-1) |
Mass Difference (µg) |
Mass Difference (kg) |
Vapour Pressure (Pa) |
Log10Vp |
175 |
448.15 |
0.002231396 |
377.01 |
3.770E-07 |
0.523386469 |
-0.281177509 |
176 |
449.15 |
0.002226428 |
401.03 |
4.010E-07 |
0.556732383 |
-0.254353516 |
177 |
450.15 |
0.002221482 |
426.85 |
4.269E-07 |
0.592577158 |
-0.227255093 |
178 |
451.15 |
0.002216558 |
460.14 |
4.601E-07 |
0.638792207 |
-0.194640391 |
179 |
452.15 |
0.002211655 |
499.78 |
4.998E-07 |
0.693822683 |
-0.158751506 |
180 |
453.15 |
0.002206775 |
535.88 |
5.359E-07 |
0.743938732 |
-0.128462830 |
181 |
454.15 |
0.002201916 |
581.80 |
5.818E-07 |
0.807687456 |
-0.092756662 |
182 |
455.15 |
0.002197078 |
625.52 |
6.255E-07 |
0.868382017 |
-0.061289179 |
183 |
456.15 |
0.002192261 |
676.94 |
6.769E-07 |
0.939766151 |
-0.026980202 |
184 |
457.15 |
0.002187466 |
733.14 |
7.331E-07 |
1.017786149 |
0.007656536 |
185 |
458.15 |
0.002182691 |
788.40 |
7.884E-07 |
1.094501187 |
0.039216237 |
A plot of Log10(vapour pressure (Pa)) versus reciprocal temperature (1/T(K)) for Run 5 gives the following statistical data using an unweighted least squares treatment.
Slope -6687.856
Standard deviation in slope 78.723
Intercept 14.634
Standard deviation in intercept 0.174
The results obtained indicate the following vapour pressure relationship:
Log10(Vp (Pa)) = -6687.856/temp(K) + 14.634
The above yields a vapour pressure (Pa) at 298.15 K with a common logarithm of -7.797.
Run 5 - Graph of Log10Vapour Pressure vs Reciprocal Temperature see attached Run 1 to 9 - Graph of Log10 Vapour Pressure vs Reciprocal Temperature.
Please note we have included runs 6,7 and 8 in the overall remarks section, please see these below:
Applicant's summary and conclusion
- Conclusions:
- The vapour pressure of the test material has been determined to be 1.6 x 10-8 Pa at 25ºC.
- Executive summary:
Method: The vapour pressure was determined using a vapour pressure balance with measurments being made at several temperatures and linear regression analysis used to calculate the vapour pressure at 25°C. Testing was conducted using Method 104 specified in the OECD Guidelines for Testing of Chemicals, 23 March 2006.
Summary of Results:
Run
Log10[Vp(25ºC)]
1
-7.710
2
-7.905
3
-7.657
4
-7.891
5
-7.797
6
-7.746
7
-7.623
8
-7.856
9
-7.876
Mean
-7.785
Vapour Pressure
1.6 x 10-8Pa
The test material did not change in appearance under the conditions used in the determination.
Conclusion:
The vapour pressure of the test material has been determined to be 1.6 x 10-8 Pa at 25ºC.
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