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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 208-953-6 | CAS number: 548-62-9
Endpoint summary
Administrative data
Description of key information
Appearance /Physical state/ Colour
Based on available data from reliable handbooks, the chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien- 1-ylidene)-N- methylmethanaminium chloride was observed to be an odourless organic solid in the form of green powder.
Melting point / Freezing point
Thus the melting point of N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride observed in the range of 198-250 °C.
Boiling point
Based on prediction done using MPBPVP v1.43, the Boiling point of chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene) -N-methylmethanaminium chloride was estimated to be 631.92 ˚C
Density
According to obtained results the bulk density and tap density of N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5- dien-1-ylidene)- N-methylmethanaminium chloride was determined as 0.471 g/cm³ and 0.684 g/cm³ respectively.
Particle size distribution (Granulometry)
The particle size distribution of N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 53 micron.
Vapour pressure
Based on available data from various reliable resources such as authoritative database, the vapour pressure of chemical N-(4-{bis[4-(dimethylamino) phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride was estimated to be 2.57E-12 Pa at 25 deg C.
Water solubility
Based on available data from authoritative database and handbook, the water solubility of chemical N-(4-{bis[4-(dimethylamino)phenyl] methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride was observed to be 10000 mg/L.
Surface tension
The Surface Tension N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride (@1% Solution) was determined as 44.2 dyn/cm.
Flash point
Based on the Calculation done using scientifically verified and validated formulas / equations ,the flash point of chemical N-(4-{bis[4-(dimethylamino) phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride was estimated to be 405.071 degree C.
Auto flammability
No auto Ignition observed for chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene) -N-methylmethanaminium chloride till 1900 degC though DTA indicated decomposition (max) at 183.640 degC. This indicates that the chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene} cyclohexa-2,5-dien- 1-ylidene)-N- methylmethanaminium chloride is not auto-flammable till 1900 degC.
Flammability
Thus it is observed from the experimental study, the Combustibility Index for the chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene} cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride at ambient temperature = 1 and at 100°C = 1.
Hence it can be concluded that the chemical N-(4-{bis[4- (dimethyl amino) phenyl]methylene}cyclohexa-2,5-dien-1-ylidene) -N-methylmethanaminium chloride was considered as non-flammable (does not ignite) for chemical safety assessment.
Explosiveness
The study does not need to be conducted because there are no chemical groups present in the molecule which are associated with explosive properties.
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 reliable handbooks, the chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien- 1-ylidene)-N- methylmethanaminium chloride was observed to be an odourless organic solid in the form of green powder.
Melting point / Freezing point
Based on available data from various reliable sources such as authoritative database, handbooks and study reports,
the melting point chemicalN-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloridewas determined as followed,
According to first study the melting point of N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N- methylmethanaminium chloride was calculated according to OECD Guideline 102 by using capillary viscometer (static).
The substance N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride starts melting and swelling at 198°C, does not completely melt till 250°C. Softening and sticking to wall observed at ~205°C.
Thus the melting point of N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride observed in the range of 198-250 °C.
Other supporting studies from various reliable resources like authoritative database and handbooks, exhibited the melting point of chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride as 215 ˚C which is in the range of selected key study.
Data from one more supporting study determined the melting point chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride in the range of 205-215 ˚C which is also in the range of selected key study.
Boiling point
Based on the prediction done using the EPI Suite MPVPBP V1.43, the Boiling point of chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride was predicted.
The boiling point of chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride was estimated to be 631.92 ˚C
Density
The results from different experimental studies for calculation of density of N-(4-{bis[4-(dimethylamino)phenyl]methylene} cyclohexa-2,5- dien-1-ylidene)- N-methylmethanaminium chloride were summarized as follows:
According to first study density of N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5- dien-1-ylidene)-N-methylmethanaminium chloride was determined by using CPSL/PTM/11 based on USP 1/2.
Based on obtained results the bulk density and tap density of N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5- dien-1-ylidene)- N-methylmethanaminium chloride was determined as 0.471 g/cm³ and 0.684 g/cm³ respectively.
Other supporting study from authoritative database gestis determined the density of N-(4-{bis[4-(dimethylamino)phenyl]methylene} cyclohexa-2,5- dien-1-ylidene)-N-methylmethanaminium chloride as 1.19 g/cm³ at 20 deg C .
Particle size distribution (Granulometry)
The particle size distribution of N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 53 micron.
Vapour pressure
Based on available data from various reliable resources such as authoritative database, the vapour pressure of chemical N-(4-{bis[4-(dimethylamino) phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride was estimated to be 2.57E-12 Pa at 25 deg C.
Other supporting study also estimatedthe vapour pressure of chemical N-(4-{bis[4-(dimethylamino) phenyl]methylene}cyclohexa- 2,5-dien-1-ylidene)-N-methylmethanaminium chloride by using MPBPVP v1.43 of EPI SUITE of Modified Grain method (Mean of Antoine and Modified Grain methods).
The estimated vapour pressure of the test substance N-(4-{bis[4-(dimethylamino)phenyl]methylene} cyclohexa-2,5-dien-1-ylidene) -N-methylmethanaminium chloride at 25deg C was 1.36E-011 Pa.
Water solubility
Based on available data from authoritative database and handbook, the water solubility of chemical N-(4-{bis[4-(dimethylamino)phenyl] methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride was observed to be 10000 mg/L.
Other supporting studies from authoritative databases and handbooks also determined the water solubility of chemical N-(4-{bis[4-(dimethylamino)phenyl] methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride as 4000 mg/L at 25 degree C.
Data from handbooks, also suggested the test chemical N-(4-{bis[4-(dimethylamino)phenyl] methylene}cyclohexa-2,5-dien-1-ylidene) -N-methylmethanaminium chloride was soluble in water.
On the basis of above values, the chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N- methylmethanaminium chloride was observed to be very soluble-soluble in water.
Surface tension
The Surface Tension N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride was determined by TSL -SOP-18 [Clariant Internal test method].
The Surface Tension N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride (@1% Solution) was determined as 44.2 dyn/cm.
Flash point
Based on the Calculation done using scientifically verified and validated formulas / equations ,the flash point of chemical N-(4-{bis[4-(dimethylamino) phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride was estimated to be 405.071 degree C.
Auto flammability
No auto Ignition observed for chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene) -N-methylmethanaminium chloride till 1900 degC though DTA indicated decomposition (max) at 183.640 degC. This indicates that the chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene} cyclohexa-2,5-dien- 1-ylidene)-N- methylmethanaminium chloride is not auto-flammable till 1900 degC.
Flammability
Thus it is observed from the experimental study, the Combustibility Index for the chemical N-(4-{bis[4-(dimethylamino)phenyl]methylene} cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium chloride at ambient temperature = 1 and at 100°C = 1.
Hence it can be concluded that the chemical N-(4-{bis[4- (dimethyl amino) phenyl]methylene}cyclohexa-2,5-dien-1-ylidene) -N-methylmethanaminium chloride was considered as non-flammable (does not ignite) for chemical safety assessment.
Explosiveness
The study does not need to be conducted because there are no chemical groups present in the molecule which are associated with explosive properties.
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.
