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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 202-895-5 | CAS number: 100-85-6
Appearance / physical state / colour
Administrative data
Link to relevant study record(s)
- Endpoint:
- appearance / physical state / colour
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: No guideline was followed. The appearance was determined in compliance with GLP and was desribed in a study report on physico-chemical properties.
- Justification for type of information:
- The substance can be produced through different process routes, yielding solutions in water or organic solvent (e.g. methanol or ethylene glycol).
It was initially unclear how to register the substance (mono-constituent or multi-constituent substance) and which manufactured substance to test to fulfil the REACH data requirements. After consultation with the ECHA helpdesk, the test program was started with the manufactured substance of the Lead registrant (solvent: methanol) in which the highest amount of solvent could be removed without causing degradation of the substance. This resulted in the selection of a solution of 56-57% BTMAOH in methanol as test substance.
During the course of the test program, and in order to aid meaningful risk assessment, after consultation with ECHA and upon ECHA's recommendation, it was considered to be more appropriate to test the water-based manufactured substance. As a consequence, some testing was performed with a BTMAOH solution in methanol, and some testing was performed with a BTMAOH solution in water.
The current entry reflects a test performed with a methanol-based test solution. - Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The appearance of the test material was determined at Charles River Laboratories Den Bosch BV by visual observation at room temperature.
- GLP compliance:
- yes
- Physical state at 20°C and 1013 hPa:
- liquid
- Key result
- Form:
- liquid
- Colour:
- colourless
- Odour:
- other: Not determined
- Substance type:
- organic
- Conclusions:
- At room temperature BTMAOH (56-57% in methanol) is a clear colourless liquid (visual obersevation).
- Endpoint:
- appearance / physical state / colour
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: No guideline was followed. The appearance was determined in compliance with GLP and was desribed in a study report on physico-chemical properties.
- Justification for type of information:
- The substance can be produced through different process routes, yielding solutions in water or organic solvent (e.g. methanol or ethylene glycol).
It was initially unclear how to register the substance (mono-constituent or multi-constituent substance) and which manufactured substance to test to fulfil the REACH data requirements. After consultation with the ECHA helpdesk, the test program was started with the manufactured substance of the Lead registrant (solvent: methanol) in which the highest amount of solvent could be removed without causing degradation of the substance. This resulted in the selection of a solution of 56-57% BTMAOH in methanol as test substance.
During the course of the test program, and in order to aid meaningful risk assessment, after consultation with ECHA and upon ECHA's recommendation, it was considered to be more appropriate to test the water-based manufactured substance. As a consequence, some testing was performed with a BTMAOH solution in methanol, and some testing was performed with a BTMAOH solution in water.
The current entry reflects a test performed with a water-based test solution. - Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The appearance of the test material was determined at Charles River Laboratories Den Bosch BV by visual observation at room temperature.
- GLP compliance:
- yes
- Physical state at 20°C and 1013 hPa:
- liquid
- Key result
- Form:
- liquid
- Colour:
- almost colourless
- Odour:
- other: Not determined
- Substance type:
- organic
- Conclusions:
- At room temperature BTMAOH (20% in water) is a clear almost colourless liquid (visual obersevation).
Referenceopen allclose all
Description of key information
The substance is a solid, but manufactured and used only in solvents.
Key value for chemical safety assessment
- Physical state at 20°C and 1013 hPa:
- liquid
Additional information
The registered substance as such is not available.
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.
