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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
09 Sep 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 109 (Density of Liquids and Solids)
GLP compliance:
no
Type of method:
pycnometer 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

Density
Type:
relative density
Density:
2.011 other: dimensionless
Temp.:
20 °C

Any other information on results incl. tables

Pycnometer No.

601

604

563

mpycnometer [g]

33.9247

35.3456

34.1855

mpycnometer + test item [g]

54.4957

55.0962

53.4943

mpycnometer + test item + immersion liquid [g]

65.7008

66.3402

65.1738

mtest item [g]

20.5710

19.7506

19.3088

mimmersion liquid + test item [g]

11.2051

11.2440

11.6795

mpycnometer + immersion liquid [g]

52.9074

54.0755

53.1532

mpycnometer + water (20 °C) [g]

58.9526

60.0409

59.1931

mimmersion liquid [g]

18.9827

18.7299

18.9677

mwater (20 °C) [g]

25.0279

24.6953

25.0076

ρ(immersion liquid)

0.7575

0.7575

0.7575

ρ(test item, 20 °C)

2.0015

1.9965

2.0049

Relative Density D420

2.0016

1.9966

2.0050

Averagerelative Density D420

2.011

 

Calculation of the confidence interval (CI):

 

Mean value ± s * t / sqrt(N)

 

s: standard deviation

t: value t-table: 4.303 (two sided, P: 95% (f = N-1))

N: number of measurements

P: probability

f: degree of freedom

 

Average relative density D420: 2.0011 ± 0.00422 * 4.303 / sqrt(3)

 

Average relative density D420: 2.0011 ± 0.01047 (N = 3, P: 95 %)

Applicant's summary and conclusion