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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
18.01.2012-22.02.2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Justification for type of information:
Experimental test result performed using standard test guidelines

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report date:
2012

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: as mention below
Principles of method if other than guideline:
Measured as negative log of Hydrogen Ion concentration using pH meter & appropriate Buffers of pH 4 & 7
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Docosanoic acid
EC Number:
204-010-8
EC Name:
Docosanoic acid
Cas Number:
112-85-6
Molecular formula:
C22H44O2
IUPAC Name:
docosanoic acid
Test material form:
solid: crystalline
Details on test material:
- Name of test material :Docosanoic acid
- Molecular formula : C22H44O2
- Molecular weight : 340.5876 g/mol
- Smiles notation : C(CCCCCCCCCCCCCC)CCCCCCC(=O)O
- InChl : 1S/C22H44O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22(23)24/h2-21H2,1H3,(H,23,24)
- Substance type : Organic
- Physical state : Solid
Specific details on test material used for the study:
- Name of test material :Docosanoic acid
- Molecular formula : C22H44O2
- Molecular weight : 340.5876 g/mol
- Smiles notation : C(CCCCCCCCCCCCCC)CCCCCCC(=O)O
- InChl : 1S/C22H44O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22(23)24/h2-21H2,1H3,(H,23,24)
- Substance type : Organic
- Physical state : Solid

Results and discussion

pH value
Key result
pH value:
5.64
Temp.:
28 °C
Concentration:
1 vol%
Remarks on result:
other: Acidic in nature

Applicant's summary and conclusion

Conclusions:
1% by volume solution of docosanoic acid was determine to exhibit a pH of 5.64 at 28 deg C. Thus 1% by volume solution of docosanoic acid is acidic in nature.
Executive summary:

1% by volume solution of docosanoic acid was determine to exhibit a pH of 5.64 at 28 deg C. Thus 1% by volume solution of docosanoic acid is acidic in nature.