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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1996
Report date:
1996

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
EPA OPPTS 830.7000 (pH)
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Peracetic acid
EC Number:
201-186-8
EC Name:
Peracetic acid
Cas Number:
79-21-0
Molecular formula:
C2H4O3
IUPAC Name:
Peracetic acid generated by perhydrolysis of N-acetylcaprolactam by hydrogen peroxide in alkaline conditions

Results and discussion

pH valueopen allclose all
Key result
pH value:
ca. 0.641
Concentration:
100 other: % extrapolated to pure PAA
pH value:
1.96
Concentration:
>= 40 vol%
pH value:
2.73
Concentration:
5 vol%

Any other information on results incl. tables

Plotting the results shows linear behaviour with R2=1 and an equation of:

pH = -0.022 * percentage dPAA + 2.841

From this equation the pH of 100% dPAA is calculated as 0.641

Applicant's summary and conclusion

Conclusions:
The pH of 100% dPAA is calculated as 0.641
Executive summary:

The pH of 100% dPAA is calculated as 0.641