Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Diss Factsheets
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: 269-915-2 | CAS number: 68390-97-6 This substance is identified by SDA Substance Name: C16-C18 alkyl dimethyl amine and SDA Reporting Number: 19-040-00.
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Endpoint summary
Administrative data
Description of key information
See section Additional information below.
Additional information
ADSORPTION/DESORPTION
Cationic surfactants like the registration substance sorbs strongly to solid phases by van der Waals as well as ionic interactions of the protonated nitrogen. As no data for the registration substance is available, a reliable estimation by QSAR was performed:
The organic carbon normalized adsorption coefficient for soil (Koc) is estimated using the model by Franco and Trapp (2008) for ionisable organic chemicals based on the n-octanol-water partition coefficient for the neutral substance and the pKa. Full details on the model (including references), applicability domain issues, results and interpretation are provided in the attached QMRF/QPRF. The following results were obtained:
Predicted organic carbon normalized adsorption coefficient for soil:
log Koc = 4.4
Predicted partition coefficient solids water (Kp; equivalent to Kd, distribution coefficient for adsorption) for different environmental media:
Kp (Kd) = 500
AIR/WATER PARTITIONING - HENRY'S LAW CONSTANT
Henry's Law Constant Dimensionless Henry Law Constants (HLCs) for members of the DMA category can be estimated with US EPA HENRYWIN Program (v3.20). Using the bond contribution method, dimensionless HLCs range from 0.0191 (C10-DMA) to 0.184 (C18-DMA). However, due to the high pKa value, DMA category members will be almost fully protonated in aquatic environments. Therefore, HLCs were estimated with the same method for the protonated forms (DMA hydrochlorides) and ranged from 1.21E-09 (C10-DMA hydrochloride) to 1.16E-08 (C18-DMA hydrochloride), indicating negligible volatilisation from surface waters. The same conclusion has also been reached within the OECD SIDS for C12-DMA. OECD SIDS N,N-Dimethyldodecylamine. CAS No: 112-18-5 SIDS Initial Assessment Report for SIAM 11. Orlando, United States, 23-26 January 2001.
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.