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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 229-633-2 | CAS number: 6635-20-7
Endpoint summary
Administrative data
Description of key information
Additional information
Appearance/physical state/colour
Based upon physical observation and using the sense of smell, the chemical 5 - nitrovanillin was found to be solid, in powder form, yellow in colour and having characteristic odour
Melting point/freezing point
The experimental value of the melting point of 5 - nitrovanillin by the capillary method was found to be 118.7oC at 995 hPa. The chemical did not decompose or sublimate at the melting point
Boiling point
The experimental boiling point of 5-nitrovanillin was estimated to be 212.3oC
Density
The experimental value of bulk density of 5-nitrovanillin was found to be 0.918 g/cm3 at 23oC.
Particle size distribution (Granulometry)
Vapour pressure
Vapour pressure of 5-nitrovanillin was estimated to be 0.000794 Pascal by Modified Grain method.
Partition coefficient
The experimental value of the octanol water partition co-efficient (Log Kow) by the shake flask method was found to be 0.301 indicating that the chemical is moderately hydrophilic
Water solubility
5-nitrovanillin was found to be moderately soluble in water (700 mg/L) at 23oC
Solubility in organic solvents / fat solubility
5-nitrovanillin was found to be soluble in methanol (2100 mg/L) at the temperature of 23oC and normal atmospheric pressure. 5-nitrovanillin was found to be moderately soluble in petroleum ether (200 mg/L) at the temperature of 23oC and normal atmospheric pressure
Surface tension
Surface tension of 5-nitrovanillin by using the ACD/Labs’ ACD/PhysChem Suite was estimated to be 61.759998322 mN/m
Flash point
The experimental value of flash point of 5-nitrovanillin was found to be 97oC at 995 hPa; indicating that the chemical is not flammable
Auto flammability
5-nitrovanillin did not ignite spontaneously when exposed to air at temperature of 23oC and at atmospheric pressure of 995 hPa indicting that the chemical is not auto flammable
Flammability
5-nitrovanillin is considered to be non-flammable as it ignited only when the flame of bunsen burner having a temeprature close to 950oC was brought in contact with it indicating that the chemical shall ignite only at very high temperature.
Explosiveness
This end point was considered for waiver since in accordance with column 2 of Annex VII, there are no chemical groups associated with explosive properties in the molecule of 5-nitrovanillin
Oxidising properties
5-nitrovanillin was considered to be a mild oxidising solid since 344.4 ml of KMnO4 was the experimental end point obtained during the redox titration
Stability in organic solvents and identity of relevant degradation products
5-nitrovanillin was found to be stable in organic solvent dichloro methane and no degradation products were formed after 24 hours as evident from the GC-MS chromatogram obtained at 0 hours and that obtained after 24 hours.
pH
The pH of 1% volume solution of 5-nitrovanillin at 22oC was found to be 3.69 indicating that the chemical is acidic
Dissociation constant
The average pKa value for 5-nitrovanillin was found to be 0.0000083 at 23 degC; indicating that the chemical has some dissociation properties.
Viscosity
This end point was considered for waiver since viscosity is an inherent property of a fluid substance of absorbing a stress during deformation which depends on the rate of the deformation. 5-nitrovanillin is a solid chemical and hence the end point was considered for waiver
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.
