Benzenesulfonic acid, mono- and dialkylation products with C16-20 (even numbered, branched and linear) olefins, barium salts, barium carbonate, overbased, including distillates (petroleum), hydrotreated, solvent-refined, solvent-dewaxed, or catalytic dewaxed, light or heavy paraffinic C15-C50

Melting point / freezing point

Administrative data

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

from 18 Sep 2017 to 14 Nov 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Report date:

2018

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Version / remarks:

2008

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Version / remarks:

1995

Deviations:

no

Test guideline 3

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7200 (Melting Point / Melting Range)

Version / remarks:

1998

Deviations:

no

Principles of method if other than guideline:

DSC experiments were performed according to the above mentioned guidelines. No melting/freezing point could be determined by DSC. Therefore an additional experiment was performed in which the consistency of the substance was determined by visual observation after storage in freezers at ca. -20°C and at ca. -80°C. The additional experiment is not a guideline study but was described in sufficient detail.

GLP compliance:

yes

Type of method:

other: 'differential scanning calorimetry' and 'visual observation after storage in freezer'

Test material

Test material information

Constituent 1

Reference substance name:

Benzenesulfonic acid, mono- and dialkylation products with C16-20 (even numbered, branched and linear) olefins, barium salts, barium carbonate, overbased, including distillates (petroleum), hydrotreated, solvent-refined, solvent-dewaxed, or catalytic dewaxed, light or heavy paraffinic C15-C50

Molecular formula:

Not possible, UVCB

IUPAC Name:

Benzenesulfonic acid, mono- and dialkylation products with C16-20 (even numbered, branched and linear) olefins, barium salts, barium carbonate, overbased, including distillates (petroleum), hydrotreated, solvent-refined, solvent-dewaxed, or catalytic dewaxed, light or heavy paraffinic C15-C50

Test material form:

liquid

Details on test material:

Appearance: Dark brown liquid
Storage conditions: At room temperature

Results and discussion

Melting / freezing point

Melting / freezing point 1

Key result

Melting / freezing pt.:

< -80 °C

Remarks on result:

other: The substance was observed to be a viscous liquid at ca. -20°C and a very viscous liquid at ca. -80°C.

Melting / freezing point 2

Key result

Melting / freezing pt.:

< -90 °C

Decomposition:

yes

Decomp. temp.:

200 °C

Remarks on result:

other: No DSC thermal effect due to freezing between 25°C and -90°C.

Any other information on results incl. tables

TGA EXPERIMENT (PRELIMINARY TEST)

Significant decrease of weight from 300°C. 25% weight loss at 414°C and 70% weight loss at 496.5°C.

After the experiment, a black molten residue (original colour: dark brown) remained in the sample container. The change of the colour indicated reaction and/or decomposition of the test item.

 

DSC EXPERIMENT 1

During cooling no effects were observed. From 225°C an exothermic effect was observed. After the experiment, a black molten residue remained in the sample container and a yellow residue was observed on the lid of the sample container. The change of the colour indicated that the exothermic effect was due to reaction and/or decomposition of the test item. 

DSC EXPERIMENT 2

A lower cooling rate of 1°C/minute and a heating rate of 5°C/minute was applied in Experiment 2.  The exothermic effect was observed at 200°C. It demonstrated that reaction and/or decomposition of the test item was the reason for the exothermic effect. After the experiment, a black molten residue remained in the sample container. 

Applicant's summary and conclusion

Conclusions:

The substance has no freezing point at temperatures down to -80°C.

Executive summary:

Differential Scanning Calorimetry (DSC) experiments were performed in a GLP study according to EC A.1, OECD 102 and OPPTS 830.7200.

DSC experiments showed no effect due to freezing of the liquid substance between 25°C and -90°C.

After storage in freezers, the substance was visually observed to be a viscous liquid at ca. -20°C and a very viscous liquid at ca. -80°C.

Based on all results, it was concluded that the substance has no freezing point at temperatures down to -80°C.

During heating from -90°C to 400°C, reaction and/or decomposition of the substance started at 200°C.