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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
2011-2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP and guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2013
Report date:
2013

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
CIPAC MT 75 (Determination of pH Values)
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Reference substance name:
dodecane-12-lactam, manufacturing of, by-products from, distillation residues
EC Number:
923-400-5
IUPAC Name:
dodecane-12-lactam, manufacturing of, by-products from, distillation residues
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder

Results and discussion

pH valueopen allclose all
pH value:
9.44
Temp.:
20.8 °C
Concentration:
1 other: % w/v
Remarks on result:
other: after 1 min
pH value:
9.61
Temp.:
20.9 °C
Concentration:
1 other: % w/v
Remarks on result:
other: after 2 min
pH value:
9.81
Temp.:
20.9 °C
Concentration:
1 other: % w/v
Remarks on result:
other: after 10 min

Any other information on results incl. tables

4. Results

4.1. Reference item

Di-sodium tetraborate 0.05 mol/L solution

Measured pH value 9.24 at 20.9 °C

Theoretical pH value 9.22 at 20.0 °C

The values were accepted.

4.2. Standard water D

Measured pH value 6.67 at 20.4 °C

4.3. Test item at 1% w/v in standard water D

Assay No.

After 1 min

After 2 min

After 10 min

pH values

Temperature (°C)

pH values

Temperature (°C)

pH values

Temperature (°C)

1

9.41

20.9

9.58

21.0

9.80

21.0

2

9.47

20.6

9.64

20.7

9.81

20.8

Applicant's summary and conclusion

Conclusions:
The pH mean value of the test item at 1% w/v in standard water D was:
9.44 at 20.8 °C after 1 min.
9.61 at 20.9 °C after 2 min.
9.81 at 20.9 °C after 10 min.
Executive summary:

A GLP and guideline study is available. The pH mean value of the test item at 1% w/v in standard water D is found to be: 9.44 at 20.8 °C after 1 min. 9.61 at 20.9 °C after 2 min. 9.81 at 20.9 °C after 10 min.