Registration Dossier
Registration Dossier
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EC number: 239-816-9 | CAS number: 15721-78-5
Endpoint summary
Administrative data
Description of key information
Additional information
Physical state
Bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine is an off white powder at room temperature.
Melting / freezing point
Key study:
In a study conducted according to OECD Guideline 102 (not conducted to GLP), the melting point of bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine is 98.9℃ (Intertek, 2012).
Supporting study:
Using The Estimation Programs Interface (EPI) SuiteTM was developed by the US Environmental Protection Agency's Office of Pollution Prevention and Toxics and Syracuse Research Corporation (SRC), the melting point of bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine is determined as 165.16℃ (EPIWIN, 2012).
Boiling point
Key study:
In a study conducted according to OECD Guideline 103 (not conducted to GLP). no boiling point was observed within the instrument threshold of 400°C, therefore the boiling point of bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine is >400°C.
Supporting study:
Using The Estimation Programs Interface (EPI) SuiteTM was developed by the US Environmental Protection Agency's Office of Pollution Prevention and Toxics and Syracuse Research Corporation (SRC), the boiling point of bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine is determined as 431.62℃ (EPIWIN, 2012).
Relative density
In a study conducted according to OECD Guideline 109 (not conducted to GLP), the relative density of the bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine is 0.98 at 20℃ (Intertek, 2012).
Granulometry
In a study conducted to OECD 110 (not conducted to GLP), the manual sieve analysis indicated that a negligible percentage by weight of bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine has a particle size of >2,000 μm. A laser diffraction analysis showed that 10% of the substance has a particle size of <52.296 μm, 50% is <400.623 μm and 90% is <1135.736 μm (Intertek, 2012).
Vapour pressure
Key study:
In a study conducted according to EU Method A4 (not conducted to GLP), the vapour pressure of bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine was determined as <1.1E-05 Pa at 20℃ and 25℃ (Intertek, 2012).
Supporting study:
Using The Estimation Programs Interface (EPI) SuiteTM was developed by the US Environmental Protection Agency's Office of Pollution Prevention and Toxics and Syracuse Research Corporation (SRC), the vapour pressure of bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine is determined as 0.00111 Pa at 25℃ (EPISUITE, 2012).
Partition coefficient n-octanol/water
Key study:
In an OECD 117 studay (not conducted according to GLP), the partition coefficient of bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine was determined as 8.8 at 20℃ (Intertek, 2013).
Supporting study:
Using The Estimation Programs Interface (EPI) SuiteTM was developed by the US Environmental Protection Agency's Office of Pollution Prevention and Toxics and Syracuse Research Corporation (SRC), the partition coefficient of bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine is determined as 10.82 (EPISUITE, 2012).
Water solubility
Key study:
In a study conducted according to OECD Guideline 105 (not conducted to GLP), the water solubility of bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine is <0.1 mg/L at 25℃ (Intertek, 2012).
Supporting study:
Using The Estimation Programs Interface (EPI) SuiteTM was developed by the US Environmental Protection Agency's Office of Pollution Prevention and Toxics and Syracuse Research Corporation (SRC), the water solubility of bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine is determined as 9.72E-07 mg/L at 25℃(EPISUITE, 2012).
Surface tension
In a study conducted according to OECD Guideline 115 (not conducted to GLP), the surface tension of bis(4-(1,1,3,3 -tetramethylbutyl)phenyl)amine was determined as 71.4 mN/m at 25℃ (Intertek, 2012).
Flash point
A flash point study is applicable for liquid substances, while a flammability study is applicable for solids. Bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine is a solid, therefore the flammability study is more applicable for testing and the flash point study is waived.
Autoflammability / self-ignition temperature
In a study conducted according to EU Method A10 (not conducted to GLP), when the flame was applied to bis(4-(1,1,3,3 -tetramethylbutyl)phenyl)amine it melted. When the flame was applied to a liquid sample of bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine it did not ignite within the four minute test period. The substance should not be considered as highly flammable and no further testing is required (Intertek, 2012).
Flammability
In a study conducted according to EU Method A10 (not conducted to GLP), when the flame was applied to bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine it melted. When the flame was applied to a liquid sample of bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine it did not ignite within the four minute test period. The substance should not be considered as highly flammable and no further testing is required (Intertek, 2012).
Explosive properties
In a study conducted to EU Method A.14 (Explosive properties) (not conducted to GLP), the examination of the molecular formula (using Bretherick, L., Handbook of Reactive Chemical Hazards, 4th edition, Butterworths, London, ISBN 0-750-60103-5, 1990) of bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine shows it does not present any risk of explosion (Intertek, 2012).
Oxidising properties
In a study conducted according to EU Method A.17 (not conducted to GLP), examination of the molecular formula of bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine shows it does not contain any common oxidising agents and is not an oxidizing substance (Intertek, 2012).
Stability in organic solvents and identity of relevant degradation products
According to Column 1 of Annex IX of the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) legislation, stability in organic solvents and identity of relevant degradation products study does not need to be conducted if the substance stability is not considered critical. The stability of bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine is not a concern, therefore this endpoint has been waived.
Dissociation constant
In a dissociation constant study conducted according to OECD Guideline 112 (not conducted according to GLP), the pKa value of Bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine was predicted as 2±0.5 using the ACD/pKa DB software (Intertek, 2013).
Viscosity
Bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine is a solid (white odourless powder) at room temperature; therefore a viscosity study is not appropriate and this endpoint is waived.
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