| http://www.w3.org/ns/prov#value | - The non-volatile diluents are generally mineral or synthetic lubricating oils, such as lubricating oils having a viscosity around 100 SUS at 100??? F. The volatile diluents which are inert to the reaction are preferably hydrocarbons with boiling points ranging from 150??? to 300??? F. These can be aliphatic, aromatic, or a mixture of both types of solvents.
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