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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 221-779-5 | CAS number: 3234-02-4
Boiling point
Administrative data
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2018-08-07 - 2018-08-29
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- 2,3-dibromo-2-butene-1,4-diol
- EC Number:
- 221-779-5
- EC Name:
- 2,3-dibromo-2-butene-1,4-diol
- Cas Number:
- 3234-02-4
- Molecular formula:
- C4H6Br2O2
- IUPAC Name:
- (E)-2,3-dibromobut-2-ene-1,4-diol
- Test material form:
- solid
Constituent 1
- Specific details on test material used for the study:
- Molecular Formula (a. i.) : HOCH2C(Br)=C(Br)CH2OH
Molecular Mass (a. i.) : 245.91
Characteristics
(Physical Appearance)
: White crystalline powder
CAS No. (a. i.) : 3234-02-4
Batch Number : 1088
Purity (Analysed by Sponsor) : 100% by GC
Results and discussion
Boiling point
- Key result
- Boiling pt.:
- 256.03 °C
- Atm. press.:
- 92.39 kPa
- Decomposition:
- no
Applicant's summary and conclusion
- Conclusions:
- Based on the results obtained in the study it is concluded that the boiling point of trans-2,3-Dibromo-2-Butene-1,4-Diol is 256.03 °C at 92.39 kPa atmospheric pressure.
- Executive summary:
Samples of the test item and a reference material were subjected to same temperature programme.
The difference in the energy input necessary to maintain identical temperature in the test item and
the reference material was recorded. When the sample undergoes transitions involving a change in
enthalpy (endothermic on boiling), that change was indicated by a departure from baseline of heat
flow record. The boling point was determined with the help of thermogram. The midpoint of the
endothermic peak was considered as boiling point of test item. Duplicate determinations were made
and mean of two samples was taken as boling point of test item.
The boiling points of two samples of test item were found within the accuracy of Differential
Scanning Calorimetric Method (± 0.5 K).
Based on the results obtained in the study it is concluded that the boiling point of trans-2,3-
Dibromo-2-Butene-1,4-Diol is 256.03 °C at 92.39 kPa atmospheric pressure.
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.
