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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Vapour pressure

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
vapour pressure
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
data is from handbooks and authoritative database
Qualifier:
according to guideline
Guideline:
other: as mentioned below
Principles of method if other than guideline:
The vapour pressure of Benzimidazole (CAS No. 51-17-2) was estimated.
GLP compliance:
not specified
Type of method:
other: no data
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
Test no.:
#1
Temp.:
25 °C
Vapour pressure:
0.01 Pa
Remarks on result:
other: (7.64E-5 mm Hg)
Remarks:
estimated value
Conclusions:
The estimated vapour pressure of Benzimidazole (CAS No. 51-17-2) at 25°C was 0.010186 Pa (7.64E-5 mm Hg)
Executive summary:

Based on available data from handbook and authoritative databases, estimated vapour pressure of Benzimidazole (CAS No. 51-17-2) at 25°C was 0.010186 Pa (7.64E-5 mm Hg).

Description of key information

The estimated vapour pressure of Benzimidazole (CAS No. 51-17-2) at 25°C was 0.010186 Pa (7.64E-5 mm Hg)

Key value for chemical safety assessment

Vapour pressure:
0.01 Pa
at the temperature of:
25 °C

Additional information

Based on available data from handbook and authoritative databases, estimated vapour pressure of Benzimidazole (CAS No. 51-17-2) at 25°C was 0.010186 Pa (7.64E-5 mm Hg).

Other supporting data from MPBPVP v1.43 (EPI Suite) also estimated the vapour pressure of Benzimidazole (CAS No. 51-17-2)

at 25°C as 0.00138 Pa (1.03E-005 mm Hg).