Methanol Alcohol Containing Fuels
Chemistry

Methanol Alcohol Containing Fuels

As methanol is a pure chemical compound its physical properties are precise. For example, there is no need to talk of the Reid Vapour Pressure…
Ethanol Alcohol Containing Fuels
Chemistry

Ethanol Alcohol Containing Fuels

The two alcohols of most importance in fuel technology are the two most structurally simple: methanol and ethanol. Both are good fuels for spark ignition…
Vapour Pressure of Coal Tar
Chemistry

Vapour Pressure of Coal Tar

When it was first proposed to construct ‘dust-free roads’ by using tar instead of the inorganic materials used previously there was concern that the vapour…
Viscosity of Coal Tar
Chemistry

Viscosity of Coal Tar

Clearly solid and liquid will often be in co-existence and the viscosity is a factor in any application. This can be determined from the classical…
Distillate Products from Coal Tars
Chemistry

Distillate Products from Coal Tars

The processing of tars remains an important industry in countries including the US and Japan. Tar distillate is considerably less of a ‘rag bag’ of…
Properties of Coal Tars
Chemistry

Properties of Coal Tars

The term tar generally means the liquid decomposition product of any organic substance, for example wood or peat. It is with coal tars specifically that…
What is Coal Tars
Chemistry

What is Coal Tars

When a coal decomposes (‘carbonises’) there are three classes of product: solid, liquid and gaseous. The solid we refer to as coke or as char.…
Physical Properties of Petroleum Jelly
Chemistry

Physical Properties of Petroleum Jelly

Constituents of petroleum jelly are C25+. Being not a single organic compound but containing many such compounds, petroleum jelly does not have a melting point…
Electrical Conductivity of Motor Oil
Chemistry

Electrical Conductivity of Motor Oil

The most interesting side to the electrical conductivity of lubricating oils is the huge difference between those which are simply residual petroleum stock and those…
Vapour Pressure of Motor Oil
Chemistry

Vapour Pressure of Motor Oil

This quantity is not a performance criterion in lubricant motor oil performance. That is not to say that it is of no interest: information on…
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