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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Type of information:
other: expert statement
Data waiving:
other justification
Justification for data waiving:
Reason / purpose for cross-reference:
reference to same study

Data source

Reference Type:
study report
Report date:

Materials and methods

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium phosphinate
EC Number:
EC Name:
Sodium phosphinate
Cas Number:
Molecular formula:
sodium phosphinate

Results and discussion

Small-scale preliminary tests
other: Explosive (not specified)
migrated information
Remarks on result:
negative (not further specified)

Applicant's summary and conclusion

On a structure based approach and on the basis of functional groups that may have explosive properties (Bretheriek's handbook of Reactive Chemical Hazards, Butterworths, 4th Edition), it is possible to exclude beyond reasonable doubt that monohydrated sodium hypophosphite has explosive properties.
Moreover, this substance is not classified according to UN regulation on transport of dangerous goods which confirms the previous conclusion made on the basis of functionnal groups.
Executive summary:

Expert statement (as cited in the report):

As stated Annex VII, point 7.11 of the REACH regulation No 1907/2006 β€œthe tests need not be performed when available thermodynamic information (e.g. heat of formation, heat of decomposition) and/or absence of certain reactive groups in the structural formula establishes beyond reasonable doubt that the substance is incapable of rapid decomposition with evolution of gases or release of heat (i.e. the material does not present any risk of explosion).”

According to the chemical structure and the list of reactive groups that could have explosive properties (Brethericks) it is possible to exclude beyond reasonable doubt that the test item has explosive properties.

Furthermore the test item is not classified according to the UN classification for the transport of dangerous goods confirming the conclusion based on the chemical structure regarding the absence of explosive properties.