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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
23-01-2018 – 23-01-2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental test result performed using standard OECD test guidelines.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 122 (Determination of pH, Acidity and Alkalinity)
Principles of method if other than guideline:
The pH determination of test item was done as per the test guideline OECD 122. The mean pH of the test solutionwas determined with the help of digital pH meter.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Disodium succinate
EC Number:
205-778-7
EC Name:
Disodium succinate
Cas Number:
150-90-3
Molecular formula:
C4H6O4.2Na
IUPAC Name:
disodium succinate
Test material form:
solid
Details on test material:
IUPAC : disodium butanedioate
Molecular weight : 162.052 g/mol
Molecular formula: C4H6O4.2Na
Substance type: Organic
Physical state: white fine powder
Smiles:C(CCC(=O)[O-])(=O)[O-].[Na+].[Na+]
InChI:1S/C4H6O4.2Na/c5-3(6)1-2-4(7)8;;/h1-2H2,(H,5,6)(H,7,8);;/q;2*+1/p-2
Specific details on test material used for the study:
- Name of test material (as cited in study report): Sodium succinate
- Molecular formula (if other than submission substance): C4-H6-O4.2Na
- Molecular weight (if other than submission substance): 162.052
- Smiles notation (if other than submission substance): C(CCC(=O)[O-])(=O)[O-].[Na+].[Na+]
- InChl (if other than submission substance): 1S/C4H6O4.2Na/c5-3(6)1-2-4(7)8;;/h1-2H2,(H,5,6)(H,7,8);;/q;2*+1/p-2
- Substance type: Organic
- Physical state: Solid

Reagents

Reagent:
water

Results and discussion

pH value
Key result
pH value:
8.59
Temp.:
26 °C
Remarks on result:
other: 1% w/v solution of the test item

Any other information on results incl. tables

TEST DESCRIPTION AND RESULT

Method Details

Observations

Remarks if, any

Guideline

OECD 122

 

 

Method

Digital pH meter

 

Principle of Method

The mean pH of an aqueous solution or dispersion in water is determined with a pH

measurement interface equipped with an appropriate electrode system

 

Temperature of 1% w/v

test emulsion

 

26°C

mean pH (RESULT)

 

8.59

Inference

 

1. Acidic

2. Basic

3. Neutral

 

Basic

Applicant's summary and conclusion

Conclusions:
The pH of 1% w/v solution of the test item was 8.59 at 26 °C.
Executive summary:

The pH determination of test item was done as per the test guideline OECD 122. The mean pH of the test solution was determined with the help of digital pH meter. The mean pH was determine to be 8.59 at 26 °C.