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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 600-813-6 | CAS number: 1072-68-0
Auto flammability
Administrative data
- Endpoint:
- auto-flammability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP compliant, guideline study, available as unpublished report, no restrictions, fully adequate for assessment
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Chilworth Technology Limited, Process Safety Laboratories, Phi House, Southampton Science Park, Southampton SO16 7NS, United Kingdom
Test material
- Reference substance name:
- 1,4-Dimethyl-1H-pyrazole
- EC Number:
- 600-813-6
- Cas Number:
- 1072-68-0
- Molecular formula:
- C5H8N2
- IUPAC Name:
- 1,4-Dimethyl-1H-pyrazole
- Details on test material:
- - Name of test material (as cited in study report): 1,4-dimethyl-pyrazole
- Physical state: Clear colourless liquid
- Analytical purity: Approx 99.8 %
- Lot/batch No.: 34040268E0
- Expiry date: 15 July 2016
Constituent 1
Results and discussion
Auto-ignition temperature (liquids / gases)
- Auto-ignition temperature:
- 401 °C
- Atm. press.:
- 1 023 hPa
- Remarks on result:
- other:
Any other information on results incl. tables
Hot flame autoignition temperature (°C): 401
Including correction factor for barometric pressure (°C): 401
Time lag to autoignition (s): 32
Barometric pressure (kPa): 102.3
Sample quantity (µL): 200
No cool flames were observed. An orange flame was observed at the autoignition temperature.
Atm. Press (kPa) |
Inner Flask Temp. (°C) |
Conc. (µL) |
Clean flask? Yes / No |
Ignition? Yes / No |
Time lag (s) |
Comments |
102.3 |
500 |
100 |
Y |
Y |
7 |
Large flame |
102.3 |
410 |
100 |
Y |
Y |
38 |
Large flame |
102.3 |
395 |
100 |
Y |
N |
- |
- |
102.3 |
404 |
100 |
Y |
Y |
43 |
Large flame |
102.3 |
401 |
100 |
Y |
N |
- |
- |
102.3 |
401 |
200 |
Y |
Y |
32 |
Large flame |
102.3 |
398 |
200 |
Y |
N |
- |
- |
102.3 |
398 |
300 |
Y |
N |
- |
- |
104.0 |
398 |
250 |
Y |
N |
- |
- |
104.0 |
398 |
400 |
Y |
N |
- |
- |
104.0 |
398 |
150 |
Y |
N |
- |
- |
104.0 |
398 |
100 |
Y |
N |
- |
- |
Applicant's summary and conclusion
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.
