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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.6302 (Color)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.6303 (Physical State)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.6304 (Odor)
GLP compliance:
yes
Physical state at 20°C and 1013 hPa:
solid
Key result
Form:
solid
Remarks:
below its freezing point of 20.8 °C
Colour:
white
Odour:
other: faintly mercaptan-like
Key result
Form:
liquid
Remarks:
above 20.8 °C
Colour:
clear
Odour:
other: faintly mercaptan-like
Substance type:
organic

The physical state of test substance is a low melting point solid which forms a liquid at temperatures above its freezing point of 20.8 °C (294 K).

The colour of solid and liquid, pure test substance is white and clear respectively

Conclusions:
The colour of solid and liquid, pure test substance with a melting point at 20.8 °C is white and clear respectively, and the odour is faintly mercaptan·like.
Executive summary:

A GLP_compliant study was performed to determine the physical state, colour and odour of the test substance in accordance with the guidelines EPA OPPTS 830.6302 (Colour) and EPA OPPTS 830.6303 (Physical State) and EPA OPPTS 830.6304 (Odour). The substance was found to be a low melting point white solid which forms a clear liquid at temperatures above its freezing point of 20.8 °C (294 K). The odour is defined as faintly mercaptan-like.

Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.6302 (Color)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.6303 (Physical State)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.6304 (Odor)
GLP compliance:
yes
Physical state at 20°C and 1013 hPa:
liquid
Key result
Form:
liquid
Colour:
pale yellow
Odour:
other: strong mercaptan-like odour
Substance type:
organic

The tested material was characterised as a slightly turbid, mobile pale yellow liquid with a strong mercaptan-like odour.

Conclusions:
The technical material of the test substance is a pale yellow, slightly turbid, mobile liquid with a strong mercaptan-like odour.
Executive summary:

A GLP-compliant study was performed to determine the physical state, colour and odour of the test substance in accordance to the guidelines EPA OPPTS 830.6302 (Colour) and EPA OPPTS 830.6303 (Physical State), EPA OPPTS 830.6304 (Odour) and in compliance with GLP. The substance was found to be a pale yellow, slightly turbid, mobile liquid with a strong mercaptan-like odour

Description of key information

White solid with a melting point at 20.8 °C and clear-yellow liquid above its melting point, with a faintly mercaptan like odour, OPPTS 830.6302/3/4, Husband 1997, Husband 1998.

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
liquid
Form:
liquid
Colour:
white
yellow
Colour intensity:
transparent

Additional information

The appearance of the test substance was determined in two studies. The test substance has been determined to be white to yellow in colour, by visual assessment, at ambient temperature. The substance was found to be a low melting point solid which forms a liquid at temperatures above its freezing point of 20.8 °C (294 K) with an odour defined as faintly mercaptan-like.