Resin acids and Rosin acids, magnesium salts

Boiling point

Administrative data

Endpoint:

boiling point

Type of information:

migrated information: read-across based on grouping of substances (category approach)

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: GLP-compliant, guideline study, available as an unpublished report, reliable without restrictions.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2012

Report date:

2012

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling point/boiling range)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

method according to Siwoloboff

Remarks:

plus Differential Scanning Calorimetry

Test material

Test material information

Constituent 1

Reference substance name:

Resin acids and rosin acids, reaction products with formaldehyde, potassium salts

IUPAC Name:

Resin acids and rosin acids, reaction products with formaldehyde, potassium salts

Constituent 2

Reference substance name:

Resin acids and Rosin acids, reaction products with formaldehyde, potassium salt

EC Number:

295-855-1

EC Name:

Resin acids and Rosin acids, reaction products with formaldehyde, potassium salt

Cas Number:

92129-53-8

IUPAC Name:

Resin acids and Rosin acids, reaction products with formaldehyde, potassium salt

Test material form:

semi-solid (amorphous): gel

Remarks:

migrated information: paste

Details on test material:

- Name of test material (as cited in study report): Rosin, polymer with formaldehyde, potassium salts
- Description: brown paste
- Purity: 80% (UVCB) in water
- Expiry/Retest Date: 26 September 2012
- Storage Conditions: approximately 4°C in the dark

Results and discussion

Boiling point

Decomposition:

yes

Decomp. temp.:

ca. 171 °C

Any other information on results incl. tables

Volatile components were lost between 110 and 126 °C.

Applicant's summary and conclusion

Conclusions:

The test item has been determined to decompose at approximately 171°C at 98.7 kPa. As the test item is decomposed, no value for boiling temperature could be determined.

Executive summary:

The determination of the boiling temperature was carried out using differential scanning calorimetry and a procedure based on the liquid bath method, designed to be compatible OECD guideline 103.

During visual observation of the test item during heating the color was shown to darken throughout heating, with the first note of a change of color at 171 °C. There is however no corresponding peak in the DSC traces, only a gradual increase in the baseline. The endotherm temperature registred was approximately 118 °C, and this has been attributed to the loss of water from the sample. Moreover, the decomposition temperature was registred at 171 °C.

The test was performed in compliance with GLP standards, and with guidelines studies, therefore the results are reliable.