Registration Dossier

Physical & Chemical properties

Density

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
density
Remarks:
density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
04-11-2016 – 04-11-2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental test result performed using standard OECD test guidelines
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Principles of method if other than guideline:
The density is calculated from the difference in weight between the full and empty pycnometer and its volume
GLP compliance:
no
Type of method:
pycnometer method
Specific details on test material used for the study:
- Name of test material : Benzimidazole
- Molecular formula : C7H6N2
- Molecular weight :118.1384 g/mol
- Smiles notation : c12c(nc[nH]1)cccc2
- InChl : 1S/C7H6N2/c12476(31)8597/h15H,(H,8,9)
- Substance Type: Organic
- Physical State: Solid crystalline powder (Off white)
- Purity: 99.5%
Key result
Type:
density
Density:
0.947 g/cm³
Temp.:
20 °C
Remarks on result:
other: at 974 hPa pressure

Method Details

Observations

Remarks if, any

Guideline

OECD 109

1stReading

2nd Reading

 

 

 

Method

Adapted from ASTM 854-02

 

 

 

Principle of method

The density of test item is determined by using pyknometer. It is the ratio of mass of the unit volume of test item at a stated temperature to mass of the same volume of gas free distilled water at a stated temperature.

 

 

 

Test temperature (°C)

-

20oC

20oC

 

Atmospheric pressure (in hPa)

-

974.9

973.1

 

Weight of empty dry pyknometer (Wp)

 

31.151

29.450

 

Weight of pyknometer filled with water (WA)

 

80.837

79.111

 

Weight of pyknometer + test Item (WPS)

 

36.160

34.461

 

Weight of pyknometer +test Item+ water (WB)

 

80.755

78.649

 

 

 

Conclusions:
The mean density of Benzimidazole (CAS No. 51-17-2) was found to be 0.947 g/cm³ at 20°C and 974 hPa.
Executive summary:

The density of substance Benzimidazole (CAS No. 51-17-2)was determined following OECD Guideline 109 and according to the method adapted from ASTM D 854-02. The mean density of the substance benzimidazole was determined to be 0.947 g/cm3 at 20°C and 974 hPa.

Description of key information

The mean density of Benzimidazole (CAS No. 51-17-2) was found to be 0.947 g/cm³ at 20°C and 974 hPa.

Key value for chemical safety assessment

Relative density at 20C:
0.947

Additional information

The density of substance Benzimidazole (CAS No. 51-17-2)was determined following OECD Guideline 109 and according to the method adapted from ASTM D 854-02. The mean density of the substance benzimidazole was determined to be 0.947 g/cm3 at 20°C and 974 hPa.

Other supporting data from authoritative database Scifinder, also estimated the density of  chemical Benzimidazole (CAS no. 51-17-2) as 1.227 g/cm3.