Viscosity Number Calculator

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Spectrometric Characterization of Polymers

✖Flow Time of Polymer Solution is the total amount of time a polymer solution spends during the test.ⓘ Flow Time of Polymer Solution [t]			+10% -10%
✖Flow Time of Solvent is the total amount of time a solvent spends during the test.ⓘ Flow Time of Solvent [t_o]			+10% -10%
✖The Polymer Concentration is the total amount of concentration of a polymer in a solution.ⓘ Polymer Concentration [c]			+10% -10%

✖The Viscosity Number provides a measure of the molecular mass of a polymer.ⓘ Viscosity Number [VN]

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Formula

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Viscosity Number

Formula

`"VN" = ("t"/("t"_{"o"}-1))/"c"`

Example

`"60.49607"=("2000s"/("30s"-1))/"1.14g/mL"`

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Viscosity Number Solution

STEP 0: Pre-Calculation Summary

Formula Used

Viscosity Number = (Flow Time of Polymer Solution/(Flow Time of Solvent-1))/Polymer Concentration
VN = (t/(t_o-1))/c
This formula uses 4 Variables

Variables Used

Viscosity Number - The Viscosity Number provides a measure of the molecular mass of a polymer.
Flow Time of Polymer Solution - (Measured in Second) - Flow Time of Polymer Solution is the total amount of time a polymer solution spends during the test.
Flow Time of Solvent - (Measured in Second) - Flow Time of Solvent is the total amount of time a solvent spends during the test.
Polymer Concentration - (Measured in Gram per Milliliter) - The Polymer Concentration is the total amount of concentration of a polymer in a solution.

STEP 1: Convert Input(s) to Base Unit

Flow Time of Polymer Solution: 2000 Second --> 2000 Second No Conversion Required
Flow Time of Solvent: 30 Second --> 30 Second No Conversion Required
Polymer Concentration: 1.14 Gram per Milliliter --> 1.14 Gram per Milliliter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

VN = (t/(t_o-1))/c --> (2000/(30-1))/1.14

Evaluating ... ...

VN = 60.4960677555959

STEP 3: Convert Result to Output's Unit

60.4960677555959 --> No Conversion Required

FINAL ANSWER

60.4960677555959 ≈ 60.49607 <-- Viscosity Number

(Calculation completed in 00.012 seconds)

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Created by Pratibha

Amity Institute Of Applied Sciences (AIAS, Amity University), Noida, India

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Verified by Soupayan banerjee

National University of Judicial Science (NUJS), Kolkata

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< 15 Polymers Calculators

Sedimentation Coefficient given Dynamic Viscosity

Go Sedimentation Coefficient = Mass of Particle/(6*pi*Dynamic Viscosity*Radius of Spherical Particle)

Sedimentation Coefficient given Radius of Particle

Go Sedimentation Coefficient = Sedimentation Speed/((Radius of Spherical Particle)*(Angular Velocity)^2)

Viscosity Number

Go Viscosity Number = (Flow Time of Polymer Solution/(Flow Time of Solvent-1))/Polymer Concentration

Average Functionality Factor

Go Average Functional Factor = (Mole of each Reactant*Functionality)/Total Number of Moles

Rate of Polycondensation

Go Rate of Polycondensation = Rate Constant*(Diacid Concentration)^2*Diol Concentration

Number-Average Molecular Weight

Go Number-Average Molecular Weight = Molecular Weight of Repeating Unit/(1-Probability of Finding Repeating Unit AB)

Weight-Average Molecular Weight in General Step Reaction Polymerization

Go Weight-Average Molecular Weight = Number-Average Molecular Weight*(1+Probability of Finding Repeating Unit AB)

Number-Average Degree of Polymerization

Go Number-Average Degree of Polymerization = Number of Original Molecules/Number of Molecules at Specific Time

Activation Energy for Propagation

Go Activation Energy for Propagation = Heat of Polymerization+Activation Energy for Depolymerization

Compressive Strength of Material

Go Compressive Strength of Material = Force Applied on Material/Cross Sectional Area of Polymer

Polydispersity Index for Step-Reaction Polymers

Go Polydispersity Index = Weight-Average Molecular Weight/Number-Average Molecular Weight

Tensile Strength given Cross-Sectional Area

Go Tensile Strength = Force Applied on Material/Cross Sectional Area of Polymer

Sedimentation Coefficient of Particle

Go Sedimentation Coefficient = Sedimentation Speed/Applied Acceleration

Contour Length of Macromolecule

Go Contour Length = Number of Monomers*Length of Monomer Unit

Deborah Number

Go Deborah Number = Time of Relaxation/Observation Time

< 11 Important Formulas of Polymers Calculators

Viscosity Number

Go Viscosity Number = (Flow Time of Polymer Solution/(Flow Time of Solvent-1))/Polymer Concentration

Average Functionality Factor

Go Average Functional Factor = (Mole of each Reactant*Functionality)/Total Number of Moles

Rate of Polycondensation

Go Rate of Polycondensation = Rate Constant*(Diacid Concentration)^2*Diol Concentration

Number-Average Molecular Weight

Go Number-Average Molecular Weight = Molecular Weight of Repeating Unit/(1-Probability of Finding Repeating Unit AB)

Weight-Average Molecular Weight in General Step Reaction Polymerization

Go Weight-Average Molecular Weight = Number-Average Molecular Weight*(1+Probability of Finding Repeating Unit AB)

Number-Average Degree of Polymerization

Go Number-Average Degree of Polymerization = Number of Original Molecules/Number of Molecules at Specific Time

Compressive Strength of Material

Go Compressive Strength of Material = Force Applied on Material/Cross Sectional Area of Polymer

Polydispersity Index for Step-Reaction Polymers

Go Polydispersity Index = Weight-Average Molecular Weight/Number-Average Molecular Weight

Tensile Strength given Cross-Sectional Area

Go Tensile Strength = Force Applied on Material/Cross Sectional Area of Polymer

Sedimentation Coefficient of Particle

Go Sedimentation Coefficient = Sedimentation Speed/Applied Acceleration

Contour Length of Macromolecule

Go Contour Length = Number of Monomers*Length of Monomer Unit

Viscosity Number Formula

Viscosity Number = (Flow Time of Polymer Solution/(Flow Time of Solvent-1))/Polymer Concentration
VN = (t/(t_o-1))/c

What is Viscosity Method?

Viscometry or viscosity method was one of the first methods used for determining the MW of polymers. In this method, the viscosity of polymer solution is measured, and the simplest method used is capillary viscometry by using the Ubbelohde U-tube viscometer. In this method, both the flow time of the polymer solution (t) and the flow time of the pure solvent (t0) are recorded.

How to Calculate Viscosity Number?

Viscosity Number calculator uses Viscosity Number = (Flow Time of Polymer Solution/(Flow Time of Solvent-1))/Polymer Concentration to calculate the Viscosity Number, The Viscosity Number formula provides a measure of the molecular mass of a polymer. It is the limiting value of the specific viscosity/concentration ratio at zero concentration. Viscosity Number is denoted by VN symbol.

How to calculate Viscosity Number using this online calculator? To use this online calculator for Viscosity Number, enter Flow Time of Polymer Solution (t), Flow Time of Solvent (t_o) & Polymer Concentration (c) and hit the calculate button. Here is how the Viscosity Number calculation can be explained with given input values -> 60.49607 = (2000/(30-1))/1140.

FAQ

What is Viscosity Number?

The Viscosity Number formula provides a measure of the molecular mass of a polymer. It is the limiting value of the specific viscosity/concentration ratio at zero concentration and is represented as VN = (t/(t_o-1))/c or Viscosity Number = (Flow Time of Polymer Solution/(Flow Time of Solvent-1))/Polymer Concentration. Flow Time of Polymer Solution is the total amount of time a polymer solution spends during the test, Flow Time of Solvent is the total amount of time a solvent spends during the test & The Polymer Concentration is the total amount of concentration of a polymer in a solution.

How to calculate Viscosity Number?

The Viscosity Number formula provides a measure of the molecular mass of a polymer. It is the limiting value of the specific viscosity/concentration ratio at zero concentration is calculated using Viscosity Number = (Flow Time of Polymer Solution/(Flow Time of Solvent-1))/Polymer Concentration. To calculate Viscosity Number, you need Flow Time of Polymer Solution (t), Flow Time of Solvent (t_o) & Polymer Concentration (c). With our tool, you need to enter the respective value for Flow Time of Polymer Solution, Flow Time of Solvent & Polymer Concentration and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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