1-methylpiperidin-4-ol

Viscosity

Link to relevant study record(s)

Reference

Endpoint:

viscosity

Type of information:

experimental study

Adequacy of study:

key study

Study period:

26-04-2017 – 26-04-2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

Experimental result performed using standard methods of analysis

Qualifier:

according to guideline

Guideline:

OECD Test Guideline 114 (Viscosity of Liquids)

Principles of method if other than guideline:

Measurement of the flow of test item under gravity through a capillary 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 (as cited in study report): 1-methylpiperidin-4-ol
- Molecular formula: C6H13NO
- Molecular weight: 115.175 g/mol
- Substance type: Organic
- Physical state: Liquid

Key result

Temp.:

other: 30 °C

Parameter:

kinematic viscosity (in mm²/s)

Value:

44.361

Temp.:

other: 30°C

Parameter:

dynamic viscosity (in mPa s)

Value:

43.363

Temp.:

other: 50°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

38.112

Temp.:

other: 50°C

Parameter:

dynamic viscosity (in mPa s)

Value:

37.255

CALCULATIONS:

ν= ct----------------------------------------- (i)

Where, ν= Kinematic viscosity

c= Viscometer constant

t= time of flow in seconds (Redwood second)

For Redwood Viscometer- I, the values for the constants are as below:

Time of flow, t	C
40 to 85 seconds	0.264
85 to 2000	0.247

ν= η/ρ------------------------------ (ii)

Where, ν= Kinematic viscosity

η= Dynamic viscosity

ρ= Density of fluid

 

1. Calculation of Kinematic Viscosities:

For Test Temperature at 30°C

ν=ct

= 179.6 × 0.247sec

= 44.3612mm²/sec

For Test Temperature at 50°C

ν=ct

= 154.3 × 0.247sec

= 38.1121 mm²/sec

 

2. Calculation of Dynamic Viscosities:
For Test Temperature at 30°C

ν= η/ρ

44.3612 =η 0.9775

η = 44.3612 x 0.9775

= 43.3630 mPa.S

For Test Temperature at 50°C

ν= η/ρ

38.1121 =η/ 0.9775

η = 38.1121 x 0.9775

= 37.2545 mPa.S

Conclusions:

Kinematic viscosity (experimental) of 1-methylpiperidin-4-ol (CAS No. 106-52-5)at 30°C and 50°C is determined to 44.3612mm²/sec and 38.1121mm²/s, respectively.
Dynamic viscosity (calculated) of 1-methylpiperidin-4-ol (CAS No. 106-52-5)at 30°C and 50°C is determined to be 44.5963mPa.S and 38.3140mPa.S, respectively.

Executive summary:

The viscosity determination of Test item 1-methylpiperidin-4-ol (CAS No. 106-52-5 ) was done as per the test guideline OECD 114 using Redwood Viscometer No. 1. Kinematic viscosity (experimental) of Test item at 30°C and 50°C is 44.3612 mm²/sec and 38.1121 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 30°C and 50°C is 44.5963 mPa.S and 38.3140 mPa.S, respectively.

Description of key information

Kinematic viscosity (experimental) of 1-methylpiperidin-4-ol (CAS No. 106-52-5)at 30°C and 50°C is determined to 44.3612mm²/sec and 38.1121mm²/s, respectively.

Dynamic viscosity (calculated) of 1-methylpiperidin-4-ol (CAS No. 106-52-5)at 30°C and 50°C is determined to be 44.5963mPa.S and 38.3140mPa.S, respectively.

Key value for chemical safety assessment

Viscosity:

44.361 mm²/s (static)

at the temperature of:

30 °C

Additional information

The viscosity determination of Test item 1-methylpiperidin-4-ol (CAS No. 106-52-5 ) was done as per the test guideline OECD 114 using Redwood Viscometer No. 1. Kinematic viscosity (experimental) of Test item at 30°C and 50°C is 44.3612 mm²/sec and 38.1121 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 30°C and 50°C is 44.5963 mPa.S and 38.3140 mPa.S, respectively.