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EC number: 200-081-4 | CAS number: 51-17-2
Density
Administrative data
Link to relevant study record(s)
- 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
- 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.
Reference
Method Details |
Observations |
Remarks if, any |
||
Guideline |
OECD 109 |
1stReading |
2nd Reading |
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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 |
|
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.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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