Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Appearance / physical state / colour

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Administrative data

Link to relevant study record(s)

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Endpoint:
appearance / physical state / colour
Type of information:
other: visual observation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
description of appearance was taken from the substance data in the study report
Qualifier:
no guideline followed
Principles of method if other than guideline:
Visual observation
GLP compliance:
no
Physical state at 20°C and 1013 hPa:
solid
Form:
powder
Colour:
white
Odour:
other: no data
Substance type:
organic
Conclusions:
The substance is a white powder at ambient conditions.
Endpoint:
appearance / physical state / colour
Type of information:
not specified
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
GLP compliance:
not specified
Odour:
ammonia-like
Conclusions:
The odor of TMAH is ammonia-like (Merck Index 13th).

Description of key information

The substance is a white powder. 

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
solid

Additional information

According to the Merck Index 13th the substance has an ammonia-like odour.