Registration Dossier
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EC number: 215-724-4 | CAS number: 1390-65-4
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- Name CARMINE LAKE
Batch no. HPFC16006A
Composition Hydrated aluminium chelate of carminic acid (7-beta-D-glucopyranosyl- 3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo-anthracene-2-carboxylic acid)
CAS No. 1390-65-4
Purity 55% Carmine
Expiry date 12. Apr. 2020
Storage Room Temperature (20 ± 5 °C); Keep away from light - Key result
- Atm. press.:
- ca. 1 atm
- Decomposition:
- yes
- Decomp. temp.:
- > 34.11 - < 52.76 °C
- Sublimation:
- no
- Conclusions:
- The determination of the melting and boiling point of CARMINE LAKE was performed via DSC (differential scanning calorimetry).
Based on the observations of the pre-test, the endotherm event could be indicated as de-hydration under decomposition, evaluated with onset function. Event marker function was used to evaluate the beginning and ending of the event.
Therefore no melting and no boiling point could be determined under these circumstanc-es as the test substance decomposed.
Reference
For the calculation of the mean and the standard deviation all three determinations were taken into account.
Beginning of Event |
in °C (event mark) |
in K |
1 Determination |
43.15 |
316.30 |
2 Determination |
41.47 |
314.62 |
3 Determination |
29.76 |
302.91 |
Min |
29.76 |
302.91 |
Ending of Event |
in °C (event mark) |
in K |
1 Determination |
195.92 |
469.07 |
2 Determination |
183.61 |
456.76 |
3 Determination |
153.19 |
426.34 |
Min |
153.19 |
426.34 |
Peak max |
in °C |
in K |
1 Determination |
98.46 |
371.61 |
2 Determination |
90.81 |
363.96 |
3 Determination |
66.62 |
339.77 |
Onset |
in °C (onset) |
in K |
1 Determination |
52.75 |
325.90 |
2 Determination |
49.21 |
322.36 |
3 Determination |
34.11 |
307.26 |
Min |
34.11 |
307.26 |
Description of key information
No melting point could be determined under these circumstances as the test substance decomposed
Key value for chemical safety assessment
Additional information
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