Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Appearance / physical state / colour

Currently viewing:

Administrative data

Endpoint:
appearance / physical state / colour
Type of information:
migrated information: read-across based on grouping of substances (category approach)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The result was obtained by valid read-across.

Data source

Reference
Reference Type:
other: expert report
Title:
Annex I to the SIARs: " Use of read across and quantitative structure-activity relationships in data-gap filling for the Phosphonic Acids group", a report prepared for PACP
Author:
Fisk P R
Year:
2003

Materials and methods

Test material

Constituent 1
Chemical structure
Reference substance name:
[nitrilotris(methylene)]trisphosphonic acid, potassium salt
EC Number:
248-660-0
EC Name:
[nitrilotris(methylene)]trisphosphonic acid, potassium salt
Cas Number:
27794-93-0
Molecular formula:
C3H12NO9P3.xK
IUPAC Name:
potassium hydrogen {[bis(phosphonomethyl)amino]methyl}phosphonate
Constituent 2
Reference substance name:
Dipotassium tetrahydrogen [nitrilotris(methylene)]trisphosphonate
EC Number:
223-643-0
EC Name:
Dipotassium tetrahydrogen [nitrilotris(methylene)]trisphosphonate
Cas Number:
3998-50-3
IUPAC Name:
dipotassium tetrahydrogen [nitrilotris(methylene)]tris(phosphonate)

Results and discussion

Physical state at 20°C and 1013 hPa:
solid
Remarks:
Solid forms could potentially be isolated but none are believed to be relevant in commercial supply
Form / colour / odour
Form:
not specified
Substance type:
organic

Applicant's summary and conclusion

Conclusions:
The substance may be isolated as a solid but is always produced commercially as an aqueous solution (e.g. by adjustment of the pH of 6419-19-8 with potassium hydroxide). The result is considered to be reliable.