Registration Dossier
Registration Dossier
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EC number: 239-360-0 | CAS number: 15323-35-0
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- gas saturation method
- Specific details on test material used for the study:
- Physical Appearance (with color): Off-white crystal
Storage Condition: Ambient (21 to 29°C) - Key result
- Test no.:
- #1
- Temp.:
- 20 °C
- Vapour pressure:
- 0.001 Pa
- Test no.:
- #2
- Temp.:
- 40 °C
- Vapour pressure:
- 0.001 Pa
Reference
Method validation
- Specificity meets the acceptance criterion as the interference obtained for diluent was 1.57% and for diluent spiked with trapping agent (Matrix) was 6.82% which is < 30% of the standard response at LOQ.
- Linearity meets the acceptance criterion as the correlation coefficient obtained was 0.9995 to 1.0000 which is > 0.99.
- Limit of Detection (LOD) and Limit of Quantification (LOQ): The LOD was considered at 0.1 mg/L based on S/N ≈ 3/1. The LOQ was considered at 0.32 mg/L based on S/N ≥ 10/1, where silica blank (Matrix) was used to determine the noise.
- Accuracy (% Recovery) and Precision(% RSD): Recovery meets the acceptance criterion as the % recovery obtained was 101.33% for LOQ (0.30 mg/L) and 102.92% for 10 LOQ (3.01 mg/L) which is in the range of 70 to 110 % of the nominal concentration at each fortification level. Precision meets the acceptance criterion as the % RSD obtained was1.80% for LOQ (0.30 mg/L) and 0.70% for 10 LOQ (3.01 mg/L)which is<20.0%.
- Stability meets the acceptance criterion as the % recovery obtained was 105.97% for 0 day which is in the range of 70 to 110% of the nominal concentration. Stability meets the acceptance criterion as the % recovery obtained was 108.05% for 3 days at 40ºC which is in the range of 70 to 110% of the nominal concentration.
Tests:
- Preliminary Test – Gas Saturation Method: The obtained concentrations were 4.88 mg/L at 20 mL/minute, 20.11 mg/L at 40 mL/minute and 20.15 mg/L at 60 mL/minute.
- Definitive Test – Gas Saturation Method: The mean Vapour Pressure of the test item was 1.16 mPa at 20°C (40 mL/minute) and 1.26 mPa at 40°C (40 mL/minute)
Description of key information
The vapour pressure of the test substance is 1.16 mPa at 20°C.
Key value for chemical safety assessment
- Vapour pressure:
- 0.001 Pa
- at the temperature of:
- 20 °C
Additional information
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