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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 278-189-6 | CAS number: 75314-27-1
Endpoint summary
Administrative data
Description of key information
Appearance / physical state / colour:
The appearance of Disodium [6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene-2-sulphonamidato(2-)] [6-amino-5- [(2 -hydroxy-4-nitrophenyl) azo]naphthalene-2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) was observed to be a solid organic compound.
Melting point/ Freezing point:
Based on prediction done using MPBPVP v1.43, the melting point of given chemical Disodium [6-amino-5-[(2-hydroxy-4-nitrophenyl)azo] -N-methylnaphthalene-2-sulphonamidato(2-)] [6-amino-5- [(2-hydroxy-4-nitrophenyl) azo]naphthalene-2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) was estimated to be 293.20˚C.
Boiling point:
Based on prediction done using MPBPVP v1.43, the Boiling point of chemical Disodium[6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene -2-sulphonamidato(2-)][6-amino-5- [(2-hydroxy-4-nitrophenyl) azo]naphthalene-2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) was estimated to be 708.33 ˚C.
Density:
The density of chemical Disodium[6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene -2-sulphonamidato(2-)][6-amino-5- [(2 -hydroxy-4-nitrophenyl)azo]naphthalene-2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) was estimated to be 1.88 ± 0.1 g/cm3.
Particle size distribution (Granulometry):
The particle size distribution of Disodium[6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene -2-sulphonamidato(2-)][6-amino-5- [(2-hydroxy-4-nitrophenyl)azo]naphthalene-2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 147 micron to 52 micron.
Vapour pressure:
The estimated vapour pressure of the test substance Disodium[6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene -2 -sulphonamidato(2-)][6-amino-5- [(2-hydroxy-4-nitrophenyl)azo]naphthalene-2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) at 25deg C was 2.1E-012 Pa.
Partition coefficient:
By using KOWWIN Program (v1.68) of Estimation Program Interface (EPI suite, 2018) the octanol water partition coefficent (log Pow) of chemical Disodium [6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene-2-sulphonamidato(2-)] [6-amino-5- [(2-hydroxy-4-nitrophenyl) azo]naphthalene-2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314 -27 -1) was estimated to be 4.30 dimensionless at temparature 25oC. By this log Pow value chemical Disodium [6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene-2-sulphonamidato(2-)] [6-amino-5- [(2-hydroxy-4-nitrophenyl) azo]naphthalene-2-sulphonato(3-)]cobaltate(2-) is considered as hydrophobic in nature.
Water solubility:
The estimated water solubility of test substance Disodium[6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene -2 -sulphonamidato(2-)][6-amino-5- [(2-hydroxy-4-nitrophenyl)azo]naphthalene-2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) at 25 deg C was 55.387 mg/l.
Surface tension:
In accordance with column 2 of Annex VII of the REACH regulation, the study need only be conducted if surface activity is a desired property of the chemical. The given chemical (CAS no. 75314-27-1) is used as a dye, chemical for research purpose etc. For this use, surface activity is not an important property. Hence this study was considered for waiver.
Flash point:
The flash point of Disodium [6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene-2-sulphonamidato(2-)] [6-amino-5- [(2-hydroxy-4-nitrophenyl) azo]naphthalene-2-sulphonato(3-)]cobaltate(2-) is determined to be greater than 300 °C.
Autoflammability:
Disodium[6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene -2-sulphonamidato(2-)][6-amino-5-[(2-hydroxy-4-nitrophenyl)azo] naphthalene -2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that Disodium[6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene-2-sulphonamidato (2-)][6-amino-5- [(2-hydroxy-4-nitrophenyl)azo] naphthalene-2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) is not auto-flammable.
Flammability:
Disodium[6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene -2-sulphonamidato(2-)][6-amino-5-[(2-hydroxy-4-nitrophenyl)azo] naphthalene -2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) does not indicate any ignition when the flame of bunsen burner having temperature of approximately 950°C is brought in contact with it. Thus it can be concluded that Disodium[6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene -2-sulphonamidato(2-)][6-amino-5-[(2-hydroxy-4-nitrophenyl)azo] naphthalene -2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus Disodium[6-amino-5-[(2-hydroxy-4-nitrophenyl) azo]-N-methylnaphthalene -2-sulphonamidato(2-)][6-amino-5-[(2-hydroxy-4-nitrophenyl)azo] naphthalene -2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) was considered non-flammable for chemical safety assessment.
Explosiveness:
The study does not need to be conducted because the substance contains chemical groups associated with explosive properties which include oxygen, but the calculated oxygen balance is less than -200 i.e obtained value is -119.
Oxidising properties:
The study does not need to be conducted because there are no chemical groups present in the molecule which are associated with oxidizing properties and hence the classification procedure does not need to be applied.
Additional information
Appearance / physical state / colour:
Based on available data from obtained report, the appearance of Disodium [6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene -2-sulphonamidato(2-)] [6-amino-5- [(2-hydroxy-4-nitrophenyl) azo]naphthalene-2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) was observed to be a solid organic compound.
Melting point/ Freezing point:
Based on the prediction done using the EPI Suite MPVPBP V1.43, the melting point of given chemical was predicted.
The melting point of given chemical Disodium [6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene-2-sulphonamidato(2-)][6-amino-5- [(2-hydroxy-4-nitrophenyl) azo]naphthalene-2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) was estimated to be 293.20˚C.
Boiling point:
Based on the prediction done using the EPI Suite MPVPBP V1.43, the Boiling point of given chemical was predicted.
The boiling point of given chemical Disodium [6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene -2-sulphonamidato(2-)][6 -amino-5- [(2-hydroxy-4-nitrophenyl) azo]naphthalene-2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) was estimated to be 708.33 ˚C.
Density:
Based on prediction done using ACD/I-Lab 2.0, the density of chemical Disodium[6-amino-5-[(2-hydroxy-4-nitrophenyl)azo] -N-methylnaphthalene-2-sulphonamidato(2-)][6-amino-5- [(2-hydroxy-4-nitrophenyl) azo]naphthalene-2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) was estimated to be 1.88 ± 0.1 g/cm3.
Particle size distribution (Granulometry):
The particle size distribution of Disodium[6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene -2-sulphonamidato(2-)][6-amino-5- [(2-hydroxy-4-nitrophenyl)azo]naphthalene-2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 147 micron to 52 micron.
Vapour pressure:
Modified Grain method (Mean of Antoine and Modified Grain methods) was used to estimate the vapour pressure of the given test substance (CAS NAME) using MPBPVP v1.43 of EPI SUITE.
The estimated vapour pressure of the test substance Disodium[6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene -2 -sulphonamidato(2-)][6-amino-5- [(2-hydroxy-4-nitrophenyl)azo]naphthalene-2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1)
at 25 deg C was 2.1E-012 Pa.
Partition coefficient:
By using KOWWIN Program (v1.68) of Estimation Program Interface (EPI suite, 2018) the octanol water partition coefficent (log Pow) of chemical Disodium [6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene-2-sulphonamidato(2-)] [6-amino-5- [(2-hydroxy-4-nitrophenyl) azo]naphthalene-2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314 -27 -1) was estimated to be 4.30 dimensionless at temparature 25oC. By this log Pow value chemical Disodium [6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene-2-sulphonamidato(2-)] [6-amino-5- [(2-hydroxy-4-nitrophenyl) azo]naphthalene-2-sulphonato(3-)]cobaltate(2-) is considered as hydrophobic in nature.
Water solubility:
WSKOW v1.42 was used to estimate the water solubility of the given test substance.
The estimated water solubility of the test substance Disodium[6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene -2 -sulphonamidato(2-)][6-amino-5- [(2-hydroxy-4-nitrophenyl)azo]naphthalene-2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1)
at 25 deg C was 55.387 mg/l.
Based on the estimated value, the given test substance is considered to be slightly soluble in water.
Surface tension:
In accordance with column 2 of Annex VII of the REACH regulation, the study need only be conducted if surface activity is a desired property of the chemical. The given chemical (CAS no. 75314-27-1) is used as a dye, chemical for research purpose etc. For this use, surface activity is not an important property. Hence this study was considered for waiver.
Flash point:
Based on available data from obtained report, the flash point of Disodium [6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene -2-sulphonamidato(2-)] [6-amino-5- [(2-hydroxy-4-nitrophenyl) azo]naphthalene-2-sulphonato(3-)]cobaltate(2-) is determined to be greater than 300 °C. Hence based on obtained value the given chemical is not classified as flammable.
Autoflammability:
Disodium[6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene -2-sulphonamidato(2-)][6-amino-5-[(2-hydroxy-4-nitrophenyl)azo] naphthalene -2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that Disodium[6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene-2-sulphonamidato (2-)][6-amino-5- [(2-hydroxy-4-nitrophenyl)azo] naphthalene-2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) is not auto-flammable.
Flammability:
Disodium[6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene -2-sulphonamidato(2-)][6-amino-5-[(2-hydroxy-4-nitrophenyl)azo] naphthalene -2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) does not indicate any ignition when the flame of bunsen burner having temperature of approximately 950°C is brought in contact with it. Thus it can be concluded that Disodium[6-amino-5-[(2-hydroxy-4-nitrophenyl)azo]-N-methylnaphthalene -2-sulphonamidato(2-)][6-amino-5-[(2-hydroxy-4-nitrophenyl)azo] naphthalene -2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus Disodium[6-amino-5-[(2-hydroxy-4-nitrophenyl) azo]-N-methylnaphthalene -2-sulphonamidato(2-)][6-amino-5-[(2-hydroxy-4-nitrophenyl)azo] naphthalene -2-sulphonato(3-)]cobaltate(2-) (CAS no. 75314-27-1) was considered non-flammable for chemical safety assessment.
Explosiveness:
The study does not need to be conducted because the substance contains chemical groups associated with explosive properties which include oxygen, but the calculated oxygen balance is less than -200 i.e obtained value is -119.
Oxidising properties:
The study does not need to be conducted because there are no chemical groups present in the molecule which are associated with oxidizing properties and hence the classification procedure does not need to be applied.
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.
