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Physical & Chemical properties

Appearance / physical state / colour

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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:
liquid
Remarks:
aqueous solution
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.