Handbook Viscosity - Perry's

Thousands of organic and inorganic compounds are listed with experimental viscosity values at specific temperatures.

Viscosity—the measure of a fluid's resistance to flow—is critical for sizing pumps, pipes, and heat exchangers. Perry's provides three main ways to find this data: Perry's Handbook Viscosity

Unlike liquids, gas viscosity with temperature. Perry’s frequently cites Sutherland's Formula for these predictions: Thousands of organic and inorganic compounds are listed

lnμ=A+BT+ClnT+DTEl n mu equals cap A plus the fraction with numerator cap B and denominator cap T end-fraction plus cap C l n cap T plus cap D cap T to the cap E-th power The Go-To Equations While simple fluids use standard

is in Kelvin. For many common hydrocarbons, simpler forms like are provided.

Quick-reference charts where you draw a line between temperature and a substance point to read the viscosity. The Go-To Equations

While simple fluids use standard definitions , Perry’s relies on specific models for temperature dependence: For Liquids