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EC number: 247-465-8 | CAS number: 26115-70-8
- 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:
- 2013-10-28 to 2013-10-30
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Remarks:
- The study was conducted in accordance with a relevant test method and in compliance with a known quality system (ISO 9001:2008)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- GLP compliance:
- no
- Other quality assurance:
- other: ISO 9001:2008
- Type of method:
- effusion method: by loss of weight or by trapping vaporisate
- Key result
- Test no.:
- #1
- Temp.:
- 20 °C
- Vapour pressure:
- 0.11 Pa
- Conclusions:
- A vapour pressure value of 0.11 Pa at 20°C was determined for the substance using a relevant test method and in compliance with a known quality system. The result is considered to be reliable.
Reference
Results:
Table 1: raw data
Date (start and termination) |
Time (start and termination) |
Temperature [°C] |
Weight cell 1 [g] |
Weight cell 2 [g] |
Weight cell 3 [g] |
Weight cell 4 [g] |
28.10.2013 29.10.2013 |
9:50 9:50 |
20 |
40.27770 40.24792 |
37.98112 37.95384 |
39.04572 39.01926 |
39.04304 39.01870 |
29.10.2013 30.10.2013 |
9:50 8:00 |
30 |
40.24792 40.23808 |
37.95384 37.94614 |
39.01926 39.01114 |
39.01870 39.01040 |
30.10.2013 30.10.2013 |
8:00 15:00 |
40 |
40.23808 40.23408 |
37.94614 37.94334 |
39.01114 39.00806 |
39.01040 39.00726 |
Table 2: calculation of loss of masses
Temperature [°C] |
Period of time [sec] |
Calculated loss of mass [mg] |
||||
Cell 1 |
Cell 2 |
Cell 3 |
Cell 4 |
Average |
||
20 |
86400 |
29.78 |
27.28 |
26.46 |
24.34 |
26.96 |
30 |
79800 |
9.84 |
7.7 |
8.12 |
8.3 |
8.49 |
40 |
25200 |
4.0 |
2.8 |
3.08 |
3.14 |
3.25 |
Table 3: vapour pressure
Temperature [°C] |
Vapour pressure [hPa] |
20 |
0.00111 |
30 |
0.000392 |
40 |
0.000484 |
Remarks:
At 20°C the highest value was measured. The following temperature (30°C) shows a lower vapour pressure. At 40°C the value increases again. This is the typical characteristic of a test substance which consists of several components which have different volatilities. At 20°C during the first step of the measurement more volatile components evaporate and the loss of mass corresponding to the same time range is much higher. After the first temperature step the amount of the higher volatile components is completely evaporated and the vapour pressure of the remaining substance which has a higher purity increases with higher temperature (see values at 30°C and 40°C).
Therefore no normal logp versus 1/T relationship is resulting. For this reason the vapour pressure of this test is only specified for 20°C, representing the property of the original substance.
Description of key information
Vapour pressure [tris[3-(trimethoxysilyl)propyl]-1,3,5-triazinane-2,4,6-trione]: 0.11 Pa at 20°C (EU Method A.4)
Vapour pressure [tris[3-(trihydroxysilyl)propyl]-1,3,5-triazinane-2,4,6-trione]: <1.0E-06 Pa at 25°C (QSAR)
Vapour pressure [methanol]: 12790 Pa at 20°C
Key value for chemical safety assessment
- Vapour pressure:
- 0.11 Pa
- at the temperature of:
- 20 °C
Additional information
A vapour pressure value of 0.11 Pa at 20°C was determined for the substance using the effusion method: by loss of weight in accordance with EU Test Method A.4 and in compliance with a known quality system (ISO 9001:2008). The result is considered to be reliable and selected as key study.
In contact with water, tris[3-(trimethoxysilyl)propyl]-1,3,5-triazinane-2,4,6-trione hydrolyses rapidly to form tris[3-(trihydroxysilyl)propyl]-1,3,5-triazinane-2,4,6-trione and methanol. The vapour pressure of the silanol hydrolysis product, tris[3-(trihydroxysilyl)propyl]-1,3,5-triazinane-2,4,6-trione was predicted to be <1.0E-06 Pa at 25°C using a validated QSAR estimation method.
Methanol has a reported vapour pressure value of 12790 Pa at 20°C (OECD 2004).
Reference:
OECD (2004): SIDS Initial Assessment Report for SIAM 19, Berlin, Germany, 18-20 October 2004, Methanol, CAS 67-56-1.
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