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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
disodium 5-{4-chloro-6-[N-ethyl-3-(vinylsulfonyl)anilino]-1,3,5-triazin-2-ylamino}-4-hydroxy-3-[(4-vinylsulfonyl)phenylazo]naphthalene-2,7-disulfonate; reaction mass of: trisodium 5-{4-chloro-6-[N-ethyl-(3-(2-sulfonatooxy)ethylsulfonyl)anilino]-1,3,5-triazin-2-ylamino}-4-hydroxy-3-[4-(vinylsulfonyl)phenylazo]naphthalene-2,7-disulfonate; tetrasodium 5-{4-chloro-6-[N-ethyl-3-(2-(sulfonatooxy)ethylsulfonyl)anilino]-1,3,5-triazin-2-ylamino}-3-[4-(2-(sulfonatooxy)ethylsulfonyl)phenylazo]-4-hydroxynaphthalene-2,7-disulfonate; trisodium 5-{4-chloro-6-[N-ethyl-3-(vinylsulfonyl)anilino]-1,3,5-triazin-2-ylamino}-4-hydroxy-3-[4-(2-(sulfonatooxy)ethylsulfonyl)phenylazo]naphthalene-2,7-disulfonate
EC number: 444-050-5 | CAS number: -
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
- Study period:
- June 18, 2002 to August 07, 2002
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- adopted July 27, 1995
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- EEC Publication No. L383, December 1992
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- > 400 °C
- Remarks on result:
- not determinable
- Conclusions:
- Red Rwa 4565 does not melt under the conditions of the test (between 25 and 400°C), meaning that melting point is >400°C.
- Executive summary:
The melting point of Red Rwa 4565 has been determined in the current study performed following OECD TG 102 according to GLP. The selected method is Differential Scanning Calorimeter (DSC).
In the preliminar test, the quantities of heat absorbed or released off were measured and recorded at heating rate of 20 K/min from 25 °C to 400°C.
Before and after the test, the weight and the appearance of the sample were determined.
A not well defined endothermic heat effect was observed between 50°C and 180 °C. An exothermic heat effect starts at about 280 °C. After the experiment, the sample had lost 23 % of its mass. The sample was a powder and black in color.
In order to confirm the result of the preliminary test, a further DSC-run was recorded in the same temperature range with a heating rate of 10 K/min. During this run, the sample lost 25 % of its mass. After the measurement the sample was still a powder and colored black.
In conclusion, Red Rwa 4565 does not melt under the conditions of the test, meaning that melting point is >400°C.
Reference
In the preliminar test, the quantities of heat absorbed or released off were measured and recorded at heating rate of 20 K/min from 25 °C to 400°C.
Before and after the test, the weight and the appearance of the sample were determined.
A not well defined endothermic heat effect was observed between 50°C and 180 °C. An exothermic heat effect starts at about 280 °C. After the experiment, the sample had lost 23 % of its mass. The sample was a powder and black in color.
In order to confirm the result of the preliminary test, a further DSC-run was recorded in the same temperature range with a heating rate of 10 K/min. During this run, the sample lost 25 % of its mass. After the measurement the sample was still a powder and colored black.
In conclusion, Red Rwa 4565 does not melt under the conditions of the test, meaning that melting point is >400°C.
Description of key information
Red Rwa 4565 does not melt under the conditions of the test performed according to the EEC Directive 92/69, A.1 "Melting/Freezing temperature", December 1992 and to the OECD Guideline No. 102: " Melting point I melting range", adopted July 27, 1995
Key value for chemical safety assessment
Additional information
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.
