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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Data source

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

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
not specified
GLP compliance:
no
Type of method:
pycnometer method

Test material

Constituent 1
Chemical structure
Reference substance name:
Pyridine-2,6-dicarboxylic acid
EC Number:
207-894-3
EC Name:
Pyridine-2,6-dicarboxylic acid
Cas Number:
499-83-2
Molecular formula:
C7H5NO4
IUPAC Name:
pyridine-2,6-dicarboxylic acid
Test material form:
solid: crystalline

Results and discussion

Density
Key result
Type:
relative density
Density:
ca. 1.643 g/cm³
Temp.:
20 °C

Any other information on results incl. tables

Results of the single determinations with the respective error as well as the mean value and its standard deviation are presented in the following tables:

Table4.4‑a      Results of Single Determinations

Determination

Density in g/cm3

Error of Determ. in g/cm3

1

1.6445

0.0004

2

1.6410

0.0004

 

Table 4.4‑b     Results – Mean Values

Parameter

Value

Unit

Standard Deviation

Relative Standard Deviation

Volume of Pycnometer

50.48

cm3

0.0002

0.00%

Density of Test Substance

1.6427

g/cm3

0.0025

0.15%

Density of Test Substance

1642.7

kg/m3

2.5

0.15%

Relative Density of

Test Substance

1.6427

 

0.0025

0.15%

Applicant's summary and conclusion

Conclusions:
Using the pycnometer method, a density of

1.6427 ± 0.0004 g/cm3 at 20 ± 0.4 °C

was measured. This value is the mean of two independent determinations with the maximum error of a single determination.
Standard deviation was 0.0025 g/cm3, showing good correlation of the two determinations.