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EC number: 225-195-1 | CAS number: 4708-04-7
- 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
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Qualifier:
- according to guideline
- Guideline:
- other: DIN ISO 3016
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- other: thermal analysis and pour point
Test material
- Reference substance name:
- Propylphosphonic dichloride
- EC Number:
- 225-195-1
- EC Name:
- Propylphosphonic dichloride
- Cas Number:
- 4708-04-7
- Molecular formula:
- C3H7Cl2OP
- IUPAC Name:
- propylphosphonoyl dichloride
- Details on test material:
- Chemical Name (IUPAC): Propylphosphonic dichloride
Molecular Formula: C3H7Cl2OP
CAS-No.: 4708-04-7
Molecular Weight: 160.966 g/mol
Batch No.: DALA082836
Purity: 98.4 % (31P-NMR)
Date of expiry: 31.10.2012
Certificate of analysis: No AZ-006-2011, 31.10.2011
Constituent 1
Results and discussion
Melting / freezing point
- Melting / freezing pt.:
- -21 °C
Any other information on results incl. tables
DSC RESULTS AND DISCUSSION
In none of the DSC tests (1 - 5, 7) with the test item an endothermic or exothermic peak could be observed. Therefore no melting or freezing temperature was detected in the temperature range of 25°C (298 K) to – 50°C (223 K).
Test 6 was performed with water and the found onset temperature of each peak are summarized in the following table:
Test No. 6
Peak type Onset Temp. 1st cycle Onset Temp. 2nd cycle mean Onset Temp.
[#] [°C] [°C] [°C]
endothermic - 0.40 - 0.60 - 0.50
exothermic - 11.09 - 15.27 - 13.18
The detected average melting temperature (endothermic peak) of water was found to be – 0.50°C that is in good agreement with the expected value of 0.0 +/- 0.5°C. Furthermore the freezing temperature (exothermic peak) was found to be in the range between -11°C and -15°C. Theoretically the melting and freezing temperature should be the same value, but the sample act like a supercooled liquid.
Due to these experiments it was decided to check for the Pour Point of the test item and to feature another method to test for the freezing/melting temperature.
RESULTS OF THE POUR POINT TEST
All temperature values for both tests were rounded to integer values (no decimals) due to the fluctuations during the thermometer readings.
Test #1
Temp. Sample
[°C] Solidified ?[yes|no] Temp. Fr. Mixture [°C] Comment
-11 no -63 No solids visible; sample is liquid
-14 no -62 No solids visible; sample is liquid
-17 no -64 No solids visible; sample is liquid
-20 no -60 No solids visible; sample is liquid
Test #1.: Sample temperature was checked with a calibrated Hg-thermometer. The temperature of the freezing mixture was measured with the Pt100 thermometer.
Test #2/3
Temp. Sample[°C] Solidified ?[yes|no] Temp. Mixture[°C] Comment
-11 no -51 No solids visible; sample is liquid
-14 no --- No solids visible; sample is liquid
-17 no --- No solids visible; sample is liquid
-20 no --- No solids visible; sample is liquid
-44 no --- initial solids visible; sample is liquid
-22 yes --- test item completely solidified
-20.90 yes --- Mixture of liquid and solids
Test #2/3: Sample temperature and the temperature of the freezing mixture was checked with the same Pt100 thermometer.
After the first solids were visible at -44°C, the test item was continuously going to solidify, simultaneously the temperature of the sample was rising during this process. At -22°C the test item was completely solidified. Now the centrifuge tube was removed from the cooled glass beaker. The test item was stored at room temperature (test #3) until an equilibrium of the solid and the liquid phase was achieved. At this point the temperature in the centrifuge tube was -20.90°C. This temperature is the melting point of the test item.
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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