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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
13 March 2017 to 11 April 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 guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7300 (Density / Relative Density / Bulk Density)
GLP compliance:
yes
Type of method:
pycnometer method
Remarks:
gas (helium) comparison stereopycnometer

Test material

Constituent 1
Chemical structure
Reference substance name:
5-methyl-s-triazolo[1,5-a]pyrimidin-7-ol
EC Number:
219-706-7
EC Name:
5-methyl-s-triazolo[1,5-a]pyrimidin-7-ol
Cas Number:
2503-56-2
Molecular formula:
C6H6N4O
IUPAC Name:
5-methyl-s-triazolo[1,5-a]pyrimidin-7-ol
Test material form:
solid: particulate/powder

Results and discussion

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

Any other information on results incl. tables

Density of the test item

 

Test 1

Test 2

Mean

 

 

 

 

Density [g/cm3]

1.492

1.482

1.49

 

 

 

 

Applicant's summary and conclusion

Conclusions:
The density of the substance is 1.49 g/cm3
Executive summary:

Using a gas comparison pycnometer the density of the substance was determined to be 1.49 g/cm3.