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EC number: 413-010-9 | CAS number: 6613-44-1 DMBC
- 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:
- 21 July 1992 - 4 February 1993
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study conducted to GLP 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
Referenceopen allclose all
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 993
- Report date:
- 1993
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 993
- Report date:
- 1993
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- isoteniscope
Test material
- Reference substance name:
- 3,5-dimethylbenzoyl chloride
- EC Number:
- 413-010-9
- EC Name:
- 3,5-dimethylbenzoyl chloride
- Cas Number:
- 6613-44-1
- Molecular formula:
- C9H9ClO
- IUPAC Name:
- 3,5-dimethylbenzoyl chloride
- Details on test material:
- Test material name: DMBC
Appearance: clear, colourless liquid
Storage conditions: room temperature in the dark
Constituent 1
Results and discussion
Vapour pressure
- Temp.:
- 25 °C
- Vapour pressure:
- 5.2 Pa
- Remarks on result:
- other: +/- 0.6 Pa
Any other information on results incl. tables
Run 1 Results:
The sample was initially allowed to boil for about 10 minutes at around 224°C under a reduced pressure of 494 mmHg and showed no signs of decomposition. A small amount of material distilled into the small sidearm.
A plot of Log (Vapour Pressure / Pa) vs Reciprocal Temperature (K / T) gives the following statistical data using an unweighted least squares treatment:
Slope: -2946.875
Intercept: 10.702
Standard deviation in Slope: 63.094
above as % of Slope: 2.141
Standard deviation in Intercept: 0.140
above as % of Intercept: 1.305
The results obtained indicate the following Vapour Pressure relationship:
Log Vp(Pa) = [-2946.875 (± 63.094) / Temp (K)] + 10.702 (± 0.140)
The above yields a calculated vapour pressure at 298.15 K of Vp (298.15 K) = 6.584E + 00 Pa (-1.006E + 00 / + 1.187E + 00).
Run 2 Results:
After Run 1 the sample was then backflushed with nitrogen & boiled for around 10 minutes at 225 °C under a reduced pressure of 447.5 mmHg prior to Run 2. Again some sample was collected in the sidearm.
A plot of Log (Vapour Pressure / Pa) vs Reciprocal Temperature (K / T) gives the following statistical data using an unweighted least squares treatment:
Slope: -3000.847
Intercept: 10.782
Standard deviation in Slope: 38.033
above as % of Slope: 1.267
Standard deviation in Intercept: 0.082
above as % of Intercept: 0.763
The results obtained indicate the following Vapour Pressure relationship:
Log Vp(Pa) = [-3000.847 (± 38.033) / Temp (K)] + 10.782 (± 0.082)
The above yields a calculated vapour pressure at 298.15 K of Vp (298.15 K) = 5.218E + 00 Pa (-5.169E-01 / + 5.737E-01).
DISCUSSION
Run 1 gave the rounded calculated vapour pressure value at 298.15 K Vp (298.15 K) = 6.6 ± 1.5 Pascals.
Run 2 gave the rounded calculated vapour pressure value at 298.15 K Vp (298.15 K) = 5.2 ± 0.6 Pascals.
The small amounts of sample (around 1 %) trapped in the distillation sidearm between runs probably contained a small amount of more volatile material (the sample has >99 % purity) and the above progression would be a consequence of this.
The above results are equivalent to extrapolated Normal Boiling Points of 244.2 °C & 246.4 °C respectively in close agreement with the stated value of 239 °C (precise pressure not given).
The result above for Run 2 is considered an adequate measure of the vapour pressure of the more degassed sample.
Applicant's summary and conclusion
- Conclusions:
- Vp (298.15 K) = 5.2 ± 0.6 Pascals.
- Executive summary:
The vapour pressure of DMBC at a temperature of 298.15 K was determined to be 5.2 ± 0.6 Pascals. The vapour pressure measurements were performed in accordance with EEC Directive 67/548. Annex V, A4 as published in 84/449/EEC and the Health & Safety Commissions Approved Code of Practice. Test A4.
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