Registration Dossier
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EC number: 205-443-5 | CAS number: 140-93-2
Auto flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative self-ignition temperature (solids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Reason / purpose for cross-reference:
- read-across: supporting information
- Reason / purpose for cross-reference:
- read-across: supporting information
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.16 (Relative Self-Ignition Temperature for Solids)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Poland GLP Compliance No 4/2010/DPL
- Remarks on result:
- other: the sample temperature did not reach 400 oC by self-heating
- Conclusions:
- According to Method A.16 the temperature 289.60C is not to be recognize as a self-ignition temperature of sodium isobutyl xanthate (CAS# 25306-75-6).
- Endpoint:
- relative self-ignition temperature (solids)
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- The sodium and potassium salt xanthates is considered suitable as a key source of data for the others sodium and potassium salt xanthates
Considered valid for read-across for purposes of classification.
No further vertebrate testing can be justified. - Reason / purpose for cross-reference:
- read-across source
- Reason / purpose for cross-reference:
- read-across: supporting information
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.16 (Relative Self-Ignition Temperature for Solids)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Poland GLP Compliance No 4/2010/DPL
- Remarks on result:
- other: the sample temperature did not reach 400 oC by self-heating
- Conclusions:
- According to Method A.16 the temperature 289.60C is not to be recognize as a self-ignition temperature of sodium isobutyl xanthate (CAS# 25306-75-6).
Referenceopen allclose all
Result of the test– Method A.16 – according to NF T 20-036:1985 standard
Test number/ data Pressure [hPa] | Oven temperature [0C] | Sample temperature [0C] | Temperature difference sample - oven [0C] |
1 06.09.2012 1005 | 175.1 | 286.9 | 111.8 |
289.6 | 387.6 | 98.0 | |
2 07.09.2012 1006 | 173.9 | 226.6 | 52.7 |
283.0 | 333.0 | 49.6 | |
3 11.09.2012 1001 | 176.2 | 295.6 | 119.4 |
286.6 | 371.6 | 85.0 |
Result of the test– Method A.16 – according to NF T 20-036:1985 standard
Test number/ data Pressure [hPa] | Oven temperature [0C] | Sample temperature [0C] | Temperature difference sample - oven [0C] |
1 06.09.2012 1005 | 175.1 | 286.9 | 111.8 |
289.6 | 387.6 | 98.0 | |
2 07.09.2012 1006 | 173.9 | 226.6 | 52.7 |
283.0 | 333.0 | 49.6 | |
3 11.09.2012 1001 | 176.2 | 295.6 | 119.4 |
286.6 | 371.6 | 85.0 |
Description of key information
Not applicable to solid Sodium Isopropyl Xanthate (SIPX) which in the presence of moisture and/or heat decomposes to carbon disulphide, alcohol, sodium carbonate and trithiocarbonate.
Carbon disulphide (CAS number 75–15–0) is the major decomposition product and has a low autoignition point and is highly flammable.CS2 has an auto flammability temperature of 99 oC at ambient pressure
Expert Judgement
Due to the decomposition of Sodium Isopropyl Xanthate (SIPX) when is heated this substance is not considered to exhibit Auto flammability but the major decomposition product Carbon disulphide (CAS number 75–15–0) have to be considered.
Therefore testing for Auto flammability does not need to be performed.
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 289.6 °C
Additional information
Not applicable to solid Sodium Isopropyl Xanthate (SIPX) which in the presence of moisture and/or heat decomposes to carbon disulphide, alcohol, sodium carbonate and trithiocarbonate.
Carbon disulphide (CAS number 75–15–0) is the major decomposition product and has a low autoignition point and is highly flammable.CS2 has an auto flammability temperature of 99 oC at ambient pressure
Expert Judgement
Due to the decomposition of Sodium Isopropyl Xanthate (SIPX) when is heated this substance is not considered to exhibit Auto flammability but the major decomposition product Carbon disulphide (CAS number 75–15–0) have to be considered.
Therefore testing for Auto flammability does not need to be performed.
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