LIQUID VISCOSITY AND CHEMICAL CONSTITUTION OF ORGANIC COMPOUNDS: A NEW CORRELATION AND A COMPILATION OF LITERATURE DATA

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LIQUID VISCOSITY AND CHEMICAL CONSTITUTION
OF ORGANIC COMPOUNDS :
A NEW CORRELATION
mMW AND A COMPILATION OF LITERATURE DATA
by
D. VAN VELZEN (Euratom)
R. LOPES CARDOZO
(A.K.Z.O., Albatros Koninklijke Zout Organon, Hengelo, the Netherlands)
H. LANGENKAMP (Euratom)
1972
Joint Nuclear Research Centre
Ispra Establishment ­ Italy
Chemistry i wmSËSS^gSSXÊÊ.
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ιΛ« EUR 4735 e
LIQUID VISCOSITY AND CHEMICAL CONSTITUTION OF ORGANIC
COMPOUNDS : A NEW CORRELATION AND A COMPILATION OF
LITERATURE DATA by D. VAN VELZEN*, R. LOPES CARDOZO**
and H. LANGENKAMP*
* (Euratom)
** (Α.Κ.Ζ.O., Albatros Koninklijke Zout Organon, Hengelo, the Netherlands)
Commission of the European Communities
Joint Nuclear Research Centre - Ispra Establishment (Italy)
Chemistry
Luxembourg, July 1972 - 100 Pages - B.Fr. 225.—
A new empirical relation between liquid dynamic viscosity, temperature and
chemical constitution of organic compounds is proposed.
The method is based on the De Guzman-Andrade equation and the introduction
of a new property, the equivalent chain length of a compound, defined as the
chain length (in carbon atoms) of the hypothetical η-alkane having a viscosity
equal to 1 cP at the same temperature as the compound in question.
EUR 4735 e
LIQUID VISCOSITY AND CHEMICAL CONSTITUTION OF ORGANIC
COMPOUNDS : A NEW CORRELATION AND A COMPILATION OF
LITERATURE DATA by D. VAN VELZEN*, R. LOPES CARDOZO**
and H. LANGENKAMP*
* (Euratom)
** (Α.Κ.Ζ.O., Albatros Koninklijke Zout Organon, Hengelo, the Netherlands)
Commission of the European Communities
Joint Nuclear Research Centre - Ispra Establishment (Italy)
Chemistry
Luxembourg, July 1972 - 160 Pages - B.Fr. 225.—
A new empirical relation between liquid dynamic viscosity, temperature and
chemical constitution of organic compounds is proposed.
The method is based on the De Guzman-Andrade equation and the introduction
of a new property, the equivalent chain length of a compound, defined as the
chain length (in carbon atoms) of the hypothetical η-alkane having a viscosity
equal to 1 cP at the same temperature as the compound in question.
EUR 4735 e
LIQUID VISCOSITY AND CHEMICAL CONSTITUTION OF ORGANIC
COMPOUNDS : A NEW CORRELATION AND A COMPILATION OF
LITERATURE DATA by D. VAN VELZEN*, R. LOPES CARDOZO**
and H. LANGENKAMP*
* (Euratom)
** (Α.Κ.Ζ.O., Albatros Koninklijke Zout Organon, Hengelo, the Netherlands)
Commission of the European Communities
Joint Nuclear Research Centre - Ispra Establishment (Italy)
Chemistry
Luxembourg, July 1972 - 160 Pages - B.Fr. 225.—
A new empirical relation between liquid dynamic viscosity, temperature and
chemical constitution of organic compounds is proposed.
The method is based on the De Guzman-Andrade equation and the introduction
of a new property, the equivalent chain length of a compound, defined as the
chain length (in carbon atoms) of the hypothetical η-alkane having a viscosity
equal to 1 cP at the same temperature as the compound in question. Cumulative constitutional correction factors for the equivalent chain length
and the slope of the log viscosity/temperature curve are proposed. With the aid
of these data the viscosity between boiling and melting point of many compounds
can be predicted.
The method proves to be more accurate than the existing ones and it does
not make use of any other physical property.
In the Appendix of the report more than 4 000 viscosity data for more than
300 different compounds are compiled together with an appropriate index.
Therefore, the Appendix may be used as a viscosity data handbook.
Cumulative constitutional correction factors for the equivalent chain length
and the slope of the log viscosity/temperature curve are proposed. With the aid
of these data the viscosity between boiling and melting point of many compounds
can be predicted.
The method proves to be more accurate than the existing ones and it does
not make use of any other physical property.
In the Appendix of the report more than 4 000 viscosity data for more than
300 different compounds are compiled together with an appropriate index.
Therefore, the Appendix may be used as a viscosity data handbook.
Cumulative constitutional correction factors for the equivalent chain length
and the slope of the log viscosity/temperature curve are proposed. With the aid
of these data the viscosity between boiling and melting point of many compounds
can be predicted.
The method proves to be more accurate than the existing ones and it does
not make use of any other physical property.
In the Appendix of the report more than 4 000 viscosity data for more than
300 different compounds are compiled together with an appropriate index.
Therefore, the Appendix may be used as a viscosity data handbook. EUR 4735 e
COMMISSION OF THE EUROPEAN COMMUNITIES
LIQUID VISCOSITY AND CHEMICAL CONSTITUTION
OF ORGANIC COMPOUNDS :
A NEW CORRELATION
AND A COMPILATION OF LITERATURE DATA
by
D. VAN VELZEN (Euratom)
R. LOPES CARDOZO
(Α.Κ.Ζ.O., Albatros Koninklijke Zout Organon, Hengelo, the Netherlands)
H. LANGENKAMP (Euratom)
1972
Joint Nuclear Research Centre
Ispra Establishment - Italy
Chemistry ABSTRACT
Λ new empirical relation between liquid dynamic viscosity, temperature and
chemical constitution of organic compounds is proposed.
The method is based on the Dc Guzman-Andrade equation and the introduction
of a new property, the equivalent chain length of a compound, defined as the
chain length (in carbon atoms) of the hypothetical η-alkane having a viscosity
equal to 1 el' at the same temperature as the compound in question.
Cumulative constitutional correction factors for the equivalent chain length
and the slope of the log viscosity/temperature curve are proposed. With the aid
of these data the viscosity between boiling and melting point of many compounds
can be predicted.
The method proves to be more accurate than the existing ones and it does
not make use of any other physical property.
Γη the Appendix of the report more than 4 000 viscosity data for more than
300 different compounds are compiled together with an appropriate index.
Therefore, the Appendix may be used as a viscosity data handbook.
KEYWORDS
VISCOSITY BENZOPHENONE
LIQUIDS CYCLOHEXANE
ORGANIC COMPOUNDS KETONES
TEMPERATURE COEFFICIENT ALCOHOLS
BINDING ENERGY ETHERS
MOLECULAR STRUCTURE AROMATICS
FUNCTIONS AMINES
EQUATIONS ISOMERS
ALKANES ESTERS
ALKENES POLYPHENYLS
ORGANIC ACIDS TABLES
CHLOROFORM MEASURED VALUES CONTENTS
Page
1. Introduction 5
2. Effectoftemperature and chemical constitution¡-
onliquidviscosity
3. Proposedrelationfor the homologous seriesof
thealkanes7
4. Generalrelationo.
5. Discussion12
References ­j η
AppendixIA 1
AppendixIIA 155 ­ 5 ­
1. INTRODUCTION *)
The literature dealing with liquid viscosity is very
extensive and many attempts have been made to correlate the vis­
cosity of liquids to temperature and chemical constitution on
a theoretical hasis as well as purely empirically.
Truly theoretical efforts have met with little success.
Brush [1] summarizes the state of the art as follows:
"The statement that (liquid) viscosity is due to inter­
atomic forces by no means constitutes a scientific theory. It
is necessary to show that the assumption óf some specific type
of force law, not too different from the laws assumed in other
successful theories, leads to correct predictions of the value
of the viscosity coefficient over the entire range of temperatures
and pressures. We are certainly nowhere near having achieved
this, at lea