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EC number: 700-910-4 | CAS number: 1354201-99-2
- 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:
- July 10, 2012 - October 8, 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
- Report date:
- 2012
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- yes
- Remarks:
- open aluminum pans were used under nitrogen purge at 25 mL/min. This is a discrepancy from the OECD guideline. The OECD guideline calls for a plate instead of a pan.
- Principles of method if other than guideline:
- The vapour pressure of the test substance was determined by an effusion method: isothermal thermogravimetry (TGA). The TGA method is based on the determination of accelerated evaporation rates for the test substance at elevated temperatures and ambient pressure. This method is suitable for substances with vapour pressures as low as 10E-10 Pa (10-12 mbar) and with purity as close as possible to 100% to avoid the misinterpretation of measured weight losses. The estimated repeatability is 10 to 30% and the estimated reproducibility is up to 50%. However, incorporating NIST traceable standard reference materials and open pans, the reproducibility and accuracy is much higher.
- GLP compliance:
- no
- Remarks:
- the test is well described; calibration using several standard materials was applied
- Type of method:
- effusion method: by loss of weight or by trapping vaporisate
Test material
- Reference substance name:
- O,O-bis(2-methylpropyl) sulfanidylphosphonothioate; trimethylazanium
- EC Number:
- 700-910-4
- Cas Number:
- 1354201-99-2
- Molecular formula:
- C11H28NO2PS2
- IUPAC Name:
- O,O-bis(2-methylpropyl) sulfanidylphosphonothioate; trimethylazanium
- Test material form:
- solid
- Remarks:
- pale yellow glassy solid
Constituent 1
- Specific details on test material used for the study:
- - Name of test material (as cited in study report): S-10713
- Substance type: Straw color, lump solid
- Physical state: solid
- Lot/batch No.: AQ11216TZ
- Expiration date of the lot/batch: July 2013
- Stability: Stable under normal conditions
- Storage condition of test material: Room temperature; in the dark
Results and discussion
Vapour pressureopen allclose all
- Temp.:
- 25 °C
- Vapour pressure:
- 0.139 Pa
- Temp.:
- 20 °C
- Vapour pressure:
- 0.091 Pa
Any other information on results incl. tables
The vapour pressure equation with Pa units is:
Y = -3193.5X + 9.8554
where Y = log pressure (Pa), and X = 1/K. The R2 = 0.9992.
Table. Experimental evaporation rates on the test substance and calculated vapor pressure.
Sample Temperature |
Evaporation Rate |
Calculated Vapor Pressure |
|||
°C |
1/K |
%wt./min |
log %wt./min |
log P (Pa) |
P (Pa) |
40 |
0.00319 |
0.0006271 |
-3.202663199 |
-0.3553 |
0.4413 |
60 |
0.00300 |
0.002601 |
-2.584859648 |
0.2970 |
1.9816 |
80 |
0.00283 |
0.008008 |
-2.096475936 |
0.8126 |
6.4959 |
100 |
0.00268 |
0.02151 |
-1.66735959 |
1.2657 |
18.4375 |
120 |
0.00254 |
0.06176 |
-1.209292713 |
1.7493 |
56.1473 |
The above equation was derived from the experimental evaporation rates of the test substance and standard reference material and the literature value of the standard reference material.
The log evaporation rates of the test substance was plugged into the equation Y = 1.0558X + 3.0261 in order to calculate the vapour pressure at the experimental temperature. Y = log pressure of benzoic acid (Pa) and X = log evaporation rate of benzoic acid (%wt./min.). The experimental evaporation rates of the test substance at five temperatures are given in the table here above. The corresponding TGA isotherms for the test substance are attached.
Applicant's summary and conclusion
- Conclusions:
- The estimated vapour pressure of the test substance at 20 °C is 0.0915 Pa and at 0.139 Pa at 25 °C. Both values were determined using a method based on OECD 104 guideline.
- Executive summary:
The vapour pressure of the test material has been determined according to EC A.4 method and OECD test guideline 104.
The test material has been determined to have a vapour pressure of 0.0915 Pa at 20°C and 0.139 Pa at 25°C using the isothermal thermogravimetric effusion method.
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