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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 232-245-6 | CAS number: 7791-25-5
Oxidising properties
Administrative data
- Endpoint:
- oxidising liquids
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: UN-RTDG Manual of Tests and Criteria O.2: Test for oxidizing liquids
- Deviations:
- no
- GLP compliance:
- no
Test material
- Reference substance name:
- Sulphuryl dichloride
- EC Number:
- 232-245-6
- EC Name:
- Sulphuryl dichloride
- Cas Number:
- 7791-25-5
- Molecular formula:
- Cl2O2S
- IUPAC Name:
- sulfuroyl dichloride
- Details on test material:
- - Name of test material (as cited in study report): Sulphuryl dichloride
- Analytical purity: 99.6 %
Constituent 1
Study design
- Contact with:
- other: fibrous cellulose
Results and discussion
Test results (Oxidising liquids)open allclose all
- Sample tested:
- test mixture (not specified)
- Remarks:
- migrated information
- Parameter:
- mean pressure rise time
- Result:
- 4 400 ms
- Remarks on result:
- other: 2.5 g sulphuryl dichloride / 2.5 g cellulose
- Sample tested:
- reference mixture (not specified)
- Remarks:
- migrated information
- Parameter:
- mean pressure rise time
- Result:
- 58 ms
- Remarks on result:
- other: 50 % perchloric acid / cellulose (1:1)
- Sample tested:
- reference mixture (not specified)
- Remarks:
- migrated information
- Parameter:
- mean pressure rise time
- Result:
- 1 900 ms
- Remarks on result:
- other: 40 % aq. sodium chlorate / cellulose (1:1)
- Sample tested:
- reference mixture (not specified)
- Remarks:
- migrated information
- Parameter:
- mean pressure rise time
- Result:
- 2 860 ms
- Remarks on result:
- other: 65 % aq. nitric acid / cellulose (1:1)
Any other information on results incl. tables
Spontaneous ignition upon mixing was not observed.
In each case, the average burning time of the individual sulphuryl dichloride / cellulose mixture is considerable longer than the reference values.
Further, sulphuryl dichloride reacts with the hydroxy groups of cellulose in the following principal manner:
R-OH + SO2Cl2 → R-O-SO2Cl + HCl
R’-OH + R-O-SO2Cl → R’-O-SO2-O-R + HCl
Therefore, sulphuryl dichloride exhibits the behaviour of a typical inorganic acid chloride. The reaction taking
place is not an oxidation; the pressure rise may be primarily attributed to the formation of HCl and not CO2 and
H2O which should be formed in an oxidation reaction.
Therefore, sulphuryl dichloride is not to be classified as an oxidising liquid.
Details:
|
Amount (g) |
|
|
Run No. |
Sample |
Cellulose |
Time for pressure rise from 690 kPa to 2070 kPa (ms) |
1 |
2.5 |
2.5 |
5250 |
2 |
2.5 |
2.5 |
3300 |
3 |
2.5 |
2.5 |
4200 |
4 |
2.5 |
2.5 |
5750 |
5 |
2.5 |
2.5 |
3500 |
Minimum burning time (ms) |
3300 |
||
Minimum burning time (ms) |
4400 |
||
Standard deviation (ms) |
1073 |
||
Applicant's summary and conclusion
- Interpretation of results:
- other: no oxidising properties
- Remarks:
- Migrated information
- Executive summary:
Klein A and Heitkamp D (Currenta, 2010)
The average burning time of the individual sulphuryl dichloride / cellulose mixture is considerable longer than the reference values (50 % perchloric acid / cellulose (1:1); 40 % aq. sodium chlorate / cellulose (1:1); 65 % aq. nitric acid / cellulose (1:1).
Sulphuryl dichloride exhibits the behaviour of a typical inorganic acid chloride. The reaction taking
place is not an oxidation; the pressure rise may be primarily attributed to the formation of HCl and not CO2and
H2O which should be formed in an oxidation reaction.
Therefore, sulphuryl dichloride is not to be classified as an oxidising liquid.
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.
