Methyl 2-[(1,5-dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)ethylidene]-1,3,3-trimethylindoline-5-carboxylate

Stability: thermal, sunlight, metals

Administrative data

Endpoint:

stability: thermal, sunlight, metals, other

Remarks:

sensitivity to impact and exothermic decomposition

Type of information:

experimental study

Adequacy of study:

other information

Study period:

2010-02-02 until 2010-07-21

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

test procedure in accordance with national standard methods

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2010

Report date:

2010

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

other: VDI 2263, Blatt 1

Deviations:

no

Principles of method if other than guideline:

Sensitivity to impact is determined using a drop hammer (Lütolf, acc. to VDI 2263, Blatt 1). The impact energy is ca. 40 Joule. The analysis does not refer to the Explosive Act.
Determination of exothermic decomposition is carried out applying differential thermal analysis (DTA) acc. to VDI 2263. Sample is heated sealed in a glass bulb at a rate of 3 K/min. Al2O3 is used as reference to determine temperature difference.

GLP compliance:

no

Other quality assurance:

ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)

Test material

Test material information

Constituent 1

Reference substance name:

Methyl 2-[(1,5-dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)ethylidene]-1,3,3-trimethylindoline-5-carboxylate

EC Number:

227-217-5

EC Name:

Methyl 2-[(1,5-dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)ethylidene]-1,3,3-trimethylindoline-5-carboxylate

Cas Number:

5718-26-3

Molecular formula:

C25H25N3O3

IUPAC Name:

methyl 1,3,3-trimethyl-2-[2-(3-methyl-5-oxo-1-phenyl-1,5-dihydro-4H-pyrazol-4-ylidene)ethylidene]indoline-5-carboxylate

Test material form:

solid

Results and discussion

For thermal stability study

Operating temperature

Operating temp.:

260 °C

Remarks on result:

other: Starting of measurable exothermic reaction

Remarks:

Reaction enthalpy of 300 J/g

Sublimation:

not determined

Transformation products:

not measured

Any other information on results incl. tables

Test item is not sensitive to impact. Analysis is carried out using aluminium foil. As test substance is not sensitive to impact, further analysis according to Explosive Act are not necessary.

Applicant's summary and conclusion

Conclusions:

Macrolex Orange R is not sensitive to impact (Lütolf's drop hammer method according to VDI 2263). A starting exothermic reaction temperature of 260 °C (reaction enthalpy of 300 J/g) was determined using DTA.

Executive summary:

Macrolex Orange R is not sensitive to impact (Lütolf's drop hammer method according to VDI 2263). The impact energy is ca. 40 Joule. As test substance is not sensitive to impact, further analysis according to Explosive Act are not necessary.

Macrolex Orange R shows a reaction enthalpy of 300 J/g at 260 °C (measureable starting exothermic reaction temperature). Using differential thermal analysis (DTA) temperaure of sample sealed in glass bulb is raised 3 K/min.