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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

pH

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Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature

Data source

Reference
Reference Type:
secondary source
Title:
Unnamed
Year:
2007
Report date:
2007

Materials and methods

Principles of method if other than guideline:
No information on method and guideline stated
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
[ethane-1,2-diylbis[nitrilobis(methylene)]]tetrakisphosphonic acid
EC Number:
215-851-5
EC Name:
[ethane-1,2-diylbis[nitrilobis(methylene)]]tetrakisphosphonic acid
Cas Number:
1429-50-1
Molecular formula:
C6H20N2O12P4
IUPAC Name:
[ethane-1,2-diylbis[nitrilobis(methylene)]]tetrakisphosphonic acid
Test material form:
solid: crystalline

Results and discussion

pH value
pH value:
< 2
Temp.:
25 °C

Applicant's summary and conclusion

Conclusions:
A pH of <2 was reported for the substance in a secondary source to which no reliability could be assigned.