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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
09 Sep - 31 Oct 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

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 105 (Water Solubility)
GLP compliance:
no
Type of method:
flask method

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium hydroxymethanesulphonate
EC Number:
212-800-9
EC Name:
Sodium hydroxymethanesulphonate
Cas Number:
870-72-4
Molecular formula:
CH3O4S.Na
IUPAC Name:
sodium hydroxymethanesulfonate

Results and discussion

Water solubility
Water solubility:
820 g/L
Incubation duration:
>= 24 - <= 72 h
Temp.:
20 °C
pH:
4.53
Remarks on result:
other: pH reported for a 40% sample solution

Any other information on results incl. tables

Calibration

The calibration of the analytical method resulted in the following calibration curve:

R-Square: 99.8813%

Offset: -0.1313

Slope: 0.1038

Curve: 0.0006

 

 

Study results

The concentrations of the different test solutions were calculated automatically using the equation of the calibration curve. The results are summarised in the table below:

 

Incubation time

[hours]

Water solubility

[g/L]

Average

[g/L]

24

810

820±10.0

48

830

72

820

 

The water solubility of the test item at 20 °C is 820 ± 10.0 g/L (standard deviation).

The pH value of a sample solution (40%) was 4.53.

Applicant's summary and conclusion