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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Storage stability and reactivity towards container material

Administrative data

storage stability and reactivity towards container material
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:

Data source

Materials and methods

Test material

Constituent 1
Chemical structure
Reference substance name:
ammonium 6H-dibenzo[c,e][1,2]oxaphosphinin-6-olate 6-oxide
EC Number:
Molecular formula:
ammonium 6H-dibenzo[c,e][1,2]oxaphosphinin-6-olate 6-oxide

Results and discussion

Storage stability / reactivity towards container material:
other: not corrosive towards metals

Applicant's summary and conclusion

The submitted substance is not considered to be corrosive to metals.
Executive summary:

Justification according to the ECHA Guidance on the Application of Regulation (EC) No 1272/2008, page 185: Only "liquids and solids that may become liquids (during transport)" have to be considered for a CLP-classification as corrosive to metals. Solids may become liquids by melting (due to increase in temperature). "Solids having a melting point lower than 55 °C (which is the test temperature required for tests) must then be taken into consideration. The other physical way to transform a solid into liquid is by dissolution in water or another solvent."

The submitted substance has a melting point above 55 °C and it is not shipped as a solution. The practical experience during storage and shipping shows that the substance is not corrosive to stainless steel containers. The submitted substance therefore need not to be investigated for its possible corrosivity to metals.