Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Administrative data

Endpoint:
flash point of flammable liquids
Type of information:
not specified
Adequacy of study:
weight of evidence
Reliability:
other: study scientifically unjustified
Rationale for reliability incl. deficiencies:
other: test not performed/ not applicable
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:

Data source

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.9 (Flash-Point)

Test material

Constituent 1
Chemical structure
Reference substance name:
1-(2-hydroxyethyl)-1H-pyrazol-4,5-diyldiammoniumsulfate
EC Number:
429-300-3
EC Name:
1-(2-hydroxyethyl)-1H-pyrazol-4,5-diyldiammoniumsulfate
Cas Number:
155601-30-2
Molecular formula:
C5H12N4O5S
IUPAC Name:
2-(4,5-diamino-1H-pyrazol-1-yl)ethan-1-ol; sulfuric acid

Results and discussion

Any other information on results incl. tables

No flash point determination was carried out due to the inherent properties of Pyrazole DHE.

Reason:

The method for determing the flash point is used for liquids whose vapors can be ignited by source of ignition.

Pyrazole DHE is, however, a powder-form with a melting temperature > 200°C (see study melting temperature of Pyrazole DHE). This is why no flash point determination was carried out. Any evaluation as a hazardous substance should carried out accourding the criteria for solids (A.10 -A.12 -A.14 -A.16 -A.17)

Applicant's summary and conclusion

Conclusions:
No flash point determination was carried out due to the inherent properties of Pyrazole DHE.
Reason:
The method for determing the flash point is used for liquids whose vapors can be ignited by source of ignition.
Pyrazole DHE is, however, a powder-form with a melting temperature > 200°C (see study melting temperature of Pyrazole DHE). This is why no flash point determination was carried out. Any evaluation as a hazardous substance should carried out accourding the criteria for solids (A.10 -A.12 -A.14 -A.16 -A.17)
Executive summary:

No flash point determination was carried out due to the inherent properties of Pyrazole DHE.

Reason:

The method for determing the flash point is used for liquids whose vapors can be ignited by source of ignition.

Pyrazole DHE is, however, a powder-form with a melting temperature > 200°C (see study melting temperature of Pyrazole DHE). This is why no flash point determination was carried out. Any evaluation as a hazardous substance should carried out accourding the criteria for solids (A.10 -A.12 -A.14 -A.16 -A.17)