Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 228-602-0 | CAS number: 6303-30-6
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2020
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Version / remarks:
- implemented in CURRENTA Method 2011-0568901-99D Boiling point by DTA/DSC
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Other quality assurance:
- ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
- Type of method:
- differential thermal analysis
- Key result
- Atm. press.:
- 1 013 kPa
- Decomposition:
- yes
- Decomp. temp.:
- ca. 210 - 240 °C
- Conclusions:
- No boiling point could be detected. A strong exothermal change of the sample between approx. 210 °C and 240 °C was detected.
- Executive summary:
The thermal stability and decomposition point of diisobutyl phosphate was investigated by DTA/DSC corresponding to A.1., Council Regulations EC No 440/2008 and OECD 103 / OECD 113. The sample was weighed in a crucible made of aluminum, cooled down in a DTA/DSC-system to - 100 °C, tempered for 10 minutes and then heated up to 450 °C (heating rate 5 K/min) in air (1013 kPa). In comparison with an inert sample (empty crucible) the temperature difference and the heat effect was recorded.
No boiling point could be detected. A strong exothermal change of the sample between approx. 210 °C and 240 °C was recorded, which can be regarded as decomposition of the sample.
Reference
During the measurement there were no effects measured until the temperature of approx. 210 °C is reached. Between approx. 210 °C and approx. 240 °C an exothermic effect was visible followed by a sharp endothermic effect.
The occurred reactions/effects were apparently so strong that the measurement device showed an error message after this effect. The crucible containing the sample was thrown around and no longer on the measurement position. Therefore the phase after the effect is not valid.
Due to the fact that the crucible was destroyed and both parts were sticking together a repetition was not performed. The device had to be cleaned very intensely.
Description of key information
The thermal stability and decomposition point of diisobutyl phosphate was investigated by DTA/DSC corresponding to A.1., Council Regulations EC No 440/2008 and OECD 103 / OECD 113.
No boiling point could be detected. A strong exothermal change of the sample between approx. 210 °C and 240 °C was recorded, which can be regarded as decomposition of the sample.
Key value for chemical safety assessment
Additional information
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
