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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
between 09 August 2017 and 30 November 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 122 (Determination of pH, Acidity and Alkalinity)
Version / remarks:
26 July 2013
Deviations:
no
GLP compliance:
no
Other quality assurance:
other: ISO 9001:2008

Test material

Constituent 1
Chemical structure
Reference substance name:
3-mercaptopropane-1,2-diol
EC Number:
202-495-0
EC Name:
3-mercaptopropane-1,2-diol
Cas Number:
96-27-5
Molecular formula:
C3H8O2S
IUPAC Name:
3-sulfanylpropane-1,2-diol
Test material form:
liquid: viscous

Reagents

Reagent:
water

Results and discussion

pH value
Key result
pH value:
4.79
Temp.:
20 °C
Concentration:
10 g/L

Any other information on results incl. tables

Run 1: Batch 637-156

Weight of Sample taken: 1.0106 g          pH-value: 4.84 at 20°C

Run 2: Batch 637-160

Weight of Sample taken: 1.0026 g         pH-value: 4.74 at 20°C

 

Run 3: Batch 637-161

Weight of Sample taken: 1.0123 g          pH-value: 4.80 at 20°C

 

1. Run         4.84

2. Run         4.74

3. Run         4.80

Mean Value: 4.79

 

with standard deviation: 4.79 +/- 0.05

Applicant's summary and conclusion

Conclusions:
The pH value (10 g/L) has been determined to be 4.79 +/- 0.05 at 20°C