Registration Dossier

Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
May 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Key result
Melting / freezing pt.:
> 29.19 - < 29.94 °C

Screening Test

 

 

Endotherm onset temp. (°C)

Screening Test A

29.13

Screening Test B

32.36

 

An initial exotherm is observed with an onset of approx. -20°C. This is suspected to be due to glass transition due to the broadness of the peak.

An endotherm is then observed at approx. 30°C which has been attributed to melting.

 

Run 1

Run 1

Run 2

Run 3

Run 4

Endotherm onset temp. (°C)

29.25

29.19

29.94

29.77

Exotherm onset temp. (°C)

-22.67

-21.03

-20.28

-18.44

Mass of Sample Used (mg)

7.9

4.7

6.7

5.3

Start Temperature (°C)

-40

-40

-40

-40

Final Temperature (°C)

70

70

70

70

Scan Rate (K/min)

1

1

1

1

 

 

Conclusions:
Melting Point: 29.19 -29.94°C
Executive summary:

The Melting/Freezing Point of Solvent Blue 79B was determined by differential scanning calorimetry, in accordance with Method A.1 Melting/Freezing Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 102 of the OECD Guidelines for Testing of Chemicals. The result was 29.19 to 29.94°C

Description of key information

The Melting/Freezing Point of Solvent Blue 79B was determinedby differential scanning calorimetry, in accordance with Method A.1 Melting/Freezing Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 102 of the OECD Guidelines for Testing of Chemicals. The result was 29.19 to 29.94°C

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
29 °C

Additional information

Categories Display