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EC number: 947-754-5 | CAS number: -
- 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
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
- Version / remarks:
- This guideline also applies to the result
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- During inquiry (inquiry number: 06-2120767575-41-0000 ) the name was changed from „Reaction mass of metaphosphoric acid and trisodium trimetaphosphate” to “Amorphous condensation products of orthophosphoric acid and sodium carbonate (3-6 : 1)“.
- Boiling pt.:
- > 500 °C
- Atm. press.:
- 1 013 hPa
- Conclusions:
- The test item meta-phosphoric acid has no boiling point up to a temperature of 500 °C at atmospheric pressure (1013 hPa) as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.2 ., OECD Test Guideline 103 (1995) and EPA OCSPP 830.7220 (1996).
- Executive summary:
The test item meta-phosphoric acid has no boiling point up to a temperature of 500 °C at atmospheric pressure (1013 hPa) as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.2 ., OECD Test Guideline 103 (1995) and EPA OCSPP 830.7220 (1996).
Reference
Melting and Boiling Point via DSC
The thermograms of the DSC runs with open aluminium crucibles PN12841 and PN12842 are shown in Figure 1 and Figure 2 and the thermograms of the DSC runs with open glass crucibles PN12958 and PN12969 in Figure 3 and Figure 4.
Table 1: Results of the DSC-measurements
No. |
Crucible material |
Sample weight / mg |
Onset of Effect I °C |
Range of effect I °C |
Remark |
PN12841 |
Aluminium |
14.77 |
99.88 --- |
100 - 160 (endothermic) 290 - 500 (exothermic) |
Figure 1 |
PN12842 |
Aluminium |
22.72 |
101.30 --- |
100 - 160 (endothermic) 250 - 500 (exothermic) |
Figure 2 |
PN12958 |
Glass |
20.57 |
100.27 |
100 - 200 (endothermic) |
Figure 3 |
PN12969 |
Glass |
19.00 |
104.02 |
100 - 200 (endothermic) |
Figure 4 |
During the heating phase the test item showed in all measurements an endothermic effect in the temperature range of 100 - 200 °C, which cannot be clearly assigned to the melting of the test item. For an optical verification of the endothermic effect a measurement with capillary method was carried out. In this measurement, the endothermic effect in the temperature range of 100 - 200 °C could be verified as a melting of the test item. Since the test item showed a broad melting range, the onset temperatures of the DSC measurements cannot be used for evaluation.
In the measurements with open aluminium crucibles an exothermic effect could be observed in the temperature range of 250 - 500 °C with a mean decomposition energy of approx. -270 J/g. Due to the fact that this effect was not observed in the measurements with open glass crucibles, it can be stated that this effect was caused by a reaction of the test item with aluminium. The DSC measurements in open glass crucibles showed no further thermal effects up to the maximum test temperature of 500 °C. Due to this result, the test item has no boiling point up to a temperature of 500 °C.
Measurements by the capillary method
To verify the results of the DSC measurements, an additional measurement with the capillary method (Apparatus: Stuart Melting Point SMP30) was performed in the temperature range of 50 - 250 °C with a heating rate of 10 K/min. The observations during the test with the capillary method are summarized in Table 2.
Table 2: Observations during the test with the capillary method (Heating rate: 10 K/min)
Temperature |
Observation |
Temperature |
Observation |
Start (50°C) |
White,glasslikepowder |
143 °C |
Test item almost clear andc olourless |
75 °C |
White,glasslikepowder |
150 °C |
Clear,colourless viscousliquid |
100 °C |
White,glasslikepowder |
175 °C |
Clear,colourless viscousliquid that seems toliquefy |
110 °C |
Particles slowly baking to gether |
200 °C |
Clear,colourless liquid |
120 °C |
Appearance slowly changes from white to clear andc olourless |
225 °C |
Clear,colourless liquid |
135 °C |
Sintering |
end (250 °C) |
Clear,colourless liquid |
Accord ing to the observations during the test with the capillary method, the endothermic effect in the temperature range of 100 - 200°C in the DSC measurements can be assigned to the melting of the test item. The test item has a melting range from 135 - 150 °C.
Description of key information
The test item Amorphous condensation products of orthophosphoric acid and sodium carbonate (3-6 : 1) has no boiling point up to a temperature of 500 °C at atmospheric pressure (1013 hPa) as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.2 ., OECD Test Guideline 103 (1995) and EPA OCSPP 830.7220 (1996).
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 500 °C
Additional information
no boiling point up to a temperature of 500 °C
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