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Physical & Chemical properties

Melting point / freezing point

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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:
2017
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:
equivalent or similar to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
no
Type of method:
differential scanning calorimetry
Specific details on test material used for the study:
Name: Poly(oxy-1,2-ethanediyl), .alpha.,.alpha.'-(iminodi-2,1-ethanediyl)bis[.omega.-hydroxy-, N-[3-(C10-16-alkyloxy)propyl] derivs., di-Et sulfate-quaternized
Product Description: C10-16-alkyletherpropylamine, ethoxylated, DES Quat
CAS No.: 70983-58-3
Physical state: yellowish to amber viscous liquid at 20 °C
Batch No.: PFS-755-173
Re-certification date of batch: 19 April 2018
Purity: 100 % (UVCB)
Color, Gardner 8.8
pH, 5% in water 5.76
Acid Value , mg KOH/g 20.1
Moisture, % 0.127
Total Amine, mg/g 11.18
Viscosity,cps, #4@60,25C 3280
Appearance @25C pass
Stability: stable under test conditions
Storage condition of test material: Room temperature, protected from light




Key result
Melting / freezing pt.:
>= -37 - <= 9 °C
Atm. press.:
1 004 mBar
Decomposition:
no
Sublimation:
no

Results

To determine the melting behaviour (three independent single measurements), the test item was measured by DSC between -90 °C and 50 °C with a heating / cooling rate of 10 K/min in 2 cycles. For the measurement a capsulated crucible was used.

The test item shows a melting area of crystalline subcomponents between -37 °C and 9 °C according to the definition in the OECD Guideline 102 (mean value from repeat determination).

-37 °C to 8 °C (from first measurement)

-37 °C to 8 °C (from second measurement)

-37 °C to 9 °C (from third measurement)

The cooling run shows a crystallization. In the 1st heating run the test item shows additionally a glass transition temperature of amorphous components at about -49 °C.

Conclusions:
The test item shows a melting area of crystalline subcomponents between -37 °C and 9 °C according to the definition in the OECD Guideline 102 (mean value from repeat determination).
Executive summary:

The melting temperature of the test item was determined in accordance with the test method OECD Guideline 102 “OECD Guideline For The Testing Of Chemicals, adopted by the Council on 27th July 1995, Melting Point/Melting Range” (similar to the test method A.1. “Melting/Freezing Temperature” as described in the Official Journal of the European Communities L383A).

The test item shows a melting area of crystalline subcomponents between -37 °C and 9 °C according to the definition in the OECD Guideline 102 (mean value from repeat determination).

Description of key information

The test item shows a melting area of crystalline subcomponents between -37 °C and 9 °C according to the definition in the OECD Guideline 102 (mean value from repeat determination).

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-37 °C

Additional information