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Viscosity

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Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
23-09-2017 – 23-09-2017
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:
OECD Test Guideline 114 (Viscosity of Liquids)
Principles of method if other than guideline:
The viscosity determination of Test item Castor oil, sulfated (CAS No. 8002-33-3 )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 : Castor oil, sulfated
- Molecular formula : C57H104O18S3.Na3
- Molecular weight : 1239.5749 g/mol
- Smiles notation : CCCCCCC(C/C=CCCCCCCCC(=O)OCC(COC(=O)CCCCCCC/C=CCC(CCCCCC)OS(=O)(=O)O{-}.[Na]{+})OC(=O)CCCCCCC/C=CCC(CCCCCC)OS(=O)(=O)O{-}.[Na]{+})OS(=O)(=O)O{-}.[Na]{+}
- InChl : 1S/C57H104O18S3.3Na/c1-4-7-10-31-40-51(73-76(61,62)63)43-34-25-19-13-16-22-28-37-46-55(58)70-49-54(72-57(60)48-39-30-24-18-15-21-27-36-45-53(75-78(67,68)69)42-33-12-9-6-3)50-71-56(59)47-38-29-23-17-14-20-26-35-44-52(74-77(64,65)66)41-32-11-8-5-2;;;/h25-27,34-36,51-54H,4-24,28-33,37-50H2,1-3H3,(H,61,62,63)(H,64,65,66)(H,67,68,69);;;/q;3*+1/p-3/b34-25-,35-26-,36-27-;;;
- Substance type : Organic
- Physical state : Liquid
Key result
Temp.:
other: 50.0°C
Parameter:
dynamic viscosity (in mPa s)
Value:
68.04
Remarks on result:
other: Highly viscous liquid hence required heating
Key result
Temp.:
other: 70.0°C
Parameter:
dynamic viscosity (in mPa s)
Value:
51.302
Remarks on result:
other: Highly viscous liquid hence required heating
Key result
Temp.:
other: 50.0°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
64.961
Remarks on result:
other: Highly viscous liquid hence required heating
Key result
Temp.:
other: 70.0°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
48.98
Remarks on result:
other: Highly viscous liquid hence required heating

1. Calculation of Kinematic Viscosities:

For Test Temperature at 50°C

ν=ct

= 263 × 0.247sec

= 64.9610mm²/sec

For Test Temperature at 70°C

ν=ct

= 198.3 × 0.247sec

= 48.9801 mm²/sec

2. Calculation of Dynamic Viscosities:

For Test Temperature at 50°C

ν= η/ρ

64.9610 =η 1.0474

η = 64.9610 x 1.0474

= 68.0401 mPa.S

For Test Temperature at 70°C

ν= η/ρ

48.9801 =η/ 1.0474

η = 48.9801 x 1.0474

= 51.3017 mPa.S

Conclusions:
Kinematic viscosity (experimental) of Castor oil, sulfated( CAS No. 8002-33-3) at 50°C and 70°C is 64.9610 mm²/sec and 48.9801 mm²/s,respectively.
Dynamic viscosity (calculated) of Castor oil, sulfated( CAS No. 8002-33-3) at 50°C and 70°C is 68.0401mPa.S and 51.3017mPa.S, respectively.
Executive summary:

The viscosity determination of Test item Castor oil, sulfated (CAS No. 8002-33-3 )was done as per the test guideline OECD 114 using Redwood Viscometer No. 1. Kinematic viscosity (experimental) of Test item at 50°C and 70°C is 64.9610 mm²/sec and 48.9801 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 50°C and 70°C is 68.0401 mPa.S and 51.3017 mPa.S, respectively.

Description of key information

Kinematic viscosity (experimental) of Castor oil, sulfated( CAS No. 8002-33-3) at 50°C and 70°C is 64.9610 mm²/sec and 48.9801 mm²/s,respectively.

Dynamic viscosity (calculated) of Castor oil, sulfated( CAS No. 8002-33-3) at 50°C and 70°C is 68.0401mPa.S and 51.3017mPa.S, respectively.

Key value for chemical safety assessment

Viscosity:
64.961 mm²/s (static)
at the temperature of:
50 °C

Additional information

The viscosity determination of Test item Castor oil, sulfated (CAS No. 8002-33-3 )was done as per the test guideline OECD 114 using Redwood Viscometer No. 1. Kinematic viscosity (experimental) of Test item at 50°C and 70°C is 64.9610 mm²/sec and 48.9801 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 50°C and 70°C is 68.0401 mPa.S and 51.3017 mPa.S, respectively.