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Physical & Chemical properties

Viscosity

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Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
21-07-2017 – 21-07-2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental test result performed using standard test guidelines
Qualifier:
according to guideline
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Principles of method if other than guideline:
The viscosity determination of Test item Isopentyl propionate (CAS No. 105-68-0 )was done as per the test guideline OECD 114 using Redwood Viscometer No. 1.
GLP compliance:
no
Type of method:
other: Redwood Viscometer No. 1
Specific details on test material used for the study:
Name of test material : 3-Methylbutyl propanoate; Isoamyl Propionate
Molecular formula : C8H16O2
Molecular weight : 144.212 g/mol
Smiles notation : C(OCCC(C)C)(CC)=O
InChl : 1S/C8H16O2/c1-4-8(9)10-6-5-7(2)3/h7H,4-6H2,1-3H3
Substance type: Organic
Physical state: Liquid
Key result
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
13.728
Remarks on result:
other: No other detail available
Key result
Temp.:
40°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
12.672
Remarks on result:
other: No other detail available
Key result
Temp.:
20°C
Parameter:
dynamic viscosity (in mPa s)
Value:
11.873
Remarks on result:
other: No other detail available
Key result
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
10.96
Remarks on result:
other: No other detail available

1. Calculation of Kinematic Viscosities:

For Test Temperature at 20°C

ν=ct

= 52 × 0.264sec

= 13.7280mm²/sec

For Test Temperature at 40°C

ν=ct

= 48 × 0.264sec

= 12.6720 mm²/sec

2. Calculation of Dynamic Viscosities:

For Test Temperature at 20°C

ν= η/ρ

13.7280 =η 0.8649

η = 13.7280 x 0.8649

= 11.8733 mPa.S

For Test Temperature at 40°C

ν= η/ρ

12.6720 =η/ 0.8649

η = 12.6720 x 0.8649

= 10.9600 mPa.S

Conclusions:
Kinematic viscosity (experimental) of Isopentyl propionate ( CAS No.105-68-0) at 20°C and 40°C is 13.7280 mm²/sec and 12.6720 mm²/s,respectively.
Dynamic viscosity (calculated) of Isopentyl propionate (CAS No.105-68-0) at 20°C and 40°C is 11.8733 mPa.S and 10.9600 mPa.S, respectively.
Executive summary:

The viscosity determination of Test item Isopentyl propionate (CAS No. 105 -68 -0 ) was done as per the test guideline OECD 114 using Redwood Viscometer No. 1. Kinematic viscosity (experimental) of Test item at 20°C and 40°C is 13.7280 mm²/sec and 12.6720 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 20°C and 40°C is 11.8733 mPa.S and 10.9600 mPa.S, respectively.

Description of key information

Kinematic viscosity (experimental) of Isopentyl propionate ( CAS No.105-68-0) at 20°C and 40°C is 13.7280 mm²/sec and 12.6720 mm²/s,respectively.

Dynamic viscosity (calculated) of Isopentyl propionate (CAS No.105-68-0) at 20°C and 40°C is 11.8733 mPa.S and 10.9600 mPa.S, respectively.

Key value for chemical safety assessment

Viscosity:
13.728 mm²/s (static)
at the temperature of:
20 °C

Additional information

The viscosity determination of Test item Isopentyl propionate (CAS No. 105 -68 -0 ) was done as per the test guideline OECD 114 using Redwood Viscometer No. 1. Kinematic viscosity (experimental) of Test item at 20°C and 40°C is 13.7280 mm²/sec and 12.6720 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 20°C and 40°C is 11.8733 mPa.S and 10.9600 mPa.S, respectively.