6,6'-di-tert-butyl-2,2'-methylenedi-p-cresol

Stability: thermal, sunlight, metals

Link to relevant study record(s)

Reference

Endpoint:

stability: thermal, sunlight, metals, other

Type of information:

not specified

Adequacy of study:

supporting study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: see 'Remark'

Remarks:

The thermal stability of antioxidant MBP 5, which is chemically equivalent to DBMC, is cited in the report on ANTIOXIDANT MBP 5 from the Société Française D'Organo-Synthèse without indication of the method used, hence the information on the thermal stability is reliable with restrictions.

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to other study

Principles of method if other than guideline:

The method used for the determination of the thermal stability is not reported.

GLP compliance:

not specified

Test substance thermally stable:

ambiguous

Operating temp.:

170 - 220 °C

Sublimation:

not determined

Transformation products:

not measured

Test substance stable to sunlight:

not determined

Test substance stable to metals / metal ions:

not determined

Good stability below 170 - 175 °C. Decomposition starts over 200 - 220 °C.

Conclusions:

Antioxidant MBP 5 shows good thermal stability below 170 - 175 °C, but decomposition starts over 200 - 220 °C.

Executive summary:

In the SFOS report it is indicated that Antioxidant MBP 5, which is chemically equivalent to DBMC, shows good thermal stability below 170 - 175 °C, but decomposition starts over 200 - 220 °C.

Description of key information

In the SFOS report it is indicated that Antioxidant MBP 5 (i.e. DBMC) shows good thermal stability below 170 - 175 °C, but that decomposition starts at temperatures above 200 - 220 °C.