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Physical & Chemical properties

Partition coefficient

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
data is from experimental reports
Qualifier:
according to guideline
Guideline:
OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
Principles of method if other than guideline:
The partition Coefficient n-octanol/water of Tetrabutylammonium iodide(CAS No.311-28-4) was determined by the Reverse Phase High Performance Liquid Chromatographic method according to OECD Guideline No. 117 for testing of Chemicals
GLP compliance:
not specified
Type of method:
HPLC method
Partition coefficient type:
octanol-water
Specific details on test material used for the study:
- Name of test material (as cited in study report):Tetrabutylammonium iodide
- Molecular formula : C16H36NI
- Molecular weight: 369.367 g/mol
- Substance type:Organic
- Physical state:Solid
Analytical method:
high-performance liquid chromatography
Key result
Type:
log Pow
Partition coefficient:
0.869
Temp.:
25 °C
pH:
6.28
Remarks on result:
other: no additional details mentioned

Test substance

K

LogK

Log Pow by Generalized Calibration Graph

Mean of logPow ± S.D

Tr1

0.814

-0.1340

-0.8727

0.8875

0.8688± 0.02653

Tr2

0.819

-0.1287

-0.8903

0.8499

Conclusions:
The partition coefficient(n-octanol/water) of test substance Tetrabutylammonium iodide (CAS No. 311-28-4)was determined as per the HPLC method (OECD Guideline-117). The Log Pow value was determined to be 0.8688 ± 0.02653 at 25°C.
Executive summary:

The partition Coefficient n-octanol/water of Tetrabutylammonium iodide(CAS No.311-28-4) was determined by the Reverse Phase High Performance Liquid Chromatographic method according to OECD Guideline No. 117 for testing of Chemicals. The reference substances were chosen according to estimated Pow range of the test substance and generalized calibration graph was prepared. The reference substances were chosen having Pow value ranging from 0.5 to 4.9. The Log Pow value was determined to be 0.8688 ± 0.02653 at 25°C.

Description of key information

The partition Coefficient n-octanol/water of Tetrabutylammonium iodide(CAS No.311-28-4) was determined by the Reverse Phase High Performance Liquid Chromatographic method according to OECD Guideline No. 117 for testing of Chemicals. The reference substances were chosen according to estimated Pow range of the test substance and generalized calibration graph was prepared. The reference substances were chosen having Pow value ranging from 0.5 to 4.9. The Log Pow value was determined to be 0.8688 ± 0.02653 at 25°C.

Key value for chemical safety assessment

Log Kow (Log Pow):
0.869
at the temperature of:
25 °C

Additional information

The partition Coefficient n-octanol/water of Tetrabutylammonium iodide(CAS No.311-28-4) was determined by the Reverse Phase High Performance Liquid Chromatographic method according to OECD Guideline No. 117 for testing of Chemicals. The reference substances were chosen according to estimated Pow range of the test substance and generalized calibration graph was prepared. The reference substances were chosen having Pow value ranging from 0.5 to 4.9. The Log Pow value was determined to be 0.8688 ± 0.02653 at 25°C.

Data from various authoritative databases suggest that the estimated logPow of Tetrabutylammonium iodide was 1.71.

Based on these values,Tetrabutylammonium iodide can be considered to be hydrophillic in nature.