Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways


Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

In the key study entitled “Statement on 3,3’,4,4’-Benzophenonetetracarboxylic dianhydride: Hydrolysis as a Function of pH: according to OECD Guideline No. 111 (2004) and Council Regulation (EC) No. 440/2008, Method C.7” performed at DR.U.NOACK-LABORATORIEN Sarstedt, Germany in 2012, a hydrolytic half life, at ambient temperature, of less than 10 minutes was assumed based on the data obtained during a preliminary study. 

Key value for chemical safety assessment

Half-life for hydrolysis:
10 min
at the temperature of:
40 °C

Additional information

In the preliminary test a solution with a concentration of 10 mg/L of the substance was prepared in HPLC-water and immediately injected 10 times into the analytical system. Due to the fast transformation only the transformation product 3,3,4,4 -Benzophenonetetracarboxylic acid (BTCA) could be detected. After 9 minutes (sample preparation, including chromatographic separation) a transformation rate of already 100% was determined on basis of the BTCA measurements. Due to the fast transformation, no hydroloysis testing on basis of the OECD 111 guideline could be performed. A hydrolytic half life of less than 10 minutes could be assumed at environmentally relevant temperatures.