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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
10-11-2011
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
Modern study conducted under GLP and to appropriate EC method.
Qualifier:
according to guideline
Guideline:
EU Method A.10 (Flammability (Solids))
GLP compliance:
yes (incl. QA statement)
Key result
Test procedure:
burning rate test: preliminary screening test
Remarks on result:
substance does not ignite and propagate combustion either by burning with flame or smouldering along 200 mm of the powder train within the 2 minutes test period

In the preliminary study, 4,4 -Biphenol was flammable within 2 min by the flame of a gas burner. Within the ignition zone the test item melted to a black liquid, which also burns. After 4 minutes approximately 1 cm of the cluster was burned down. The test item burned to a black-grey, carbonized residuum.

According to the EU method A.10., as propagation of the flame did not occur over 200 mm of the train then a full test programme is not required.

Interpretation of results:
GHS criteria not met
Conclusions:
The test item, 4,4-Biphenol can be classified as not flammable according to GHS or CLP criteria.
Executive summary:

A preliminary test was conducted on the test substance, biphenyl, 4,4'-diol according to EU Method A.10. A hot flame from a gas burner was applied until the test substance ignited. Within the ignition zone the test item melted to a black liquid, which also burns. After 4 minutes approximately 1 cm of the cluster was burned down. As the flame did not propagate along the train for over 200 mm then a full test programme is not required. The substance can be classified as non-flammable.

Description of key information

The test item, Biphenyl-4,4'-diol can be classified as not flammable according to the GHS or CLP criteria.

Key value for chemical safety assessment

Flammability:
not classified

Additional information

Justification for classification or non-classification

No classification is proposed. There is no evidence that the substance is flammable.