ToolnozaInputs and measurement basis
Enter solids percentage by mass, true particle density and liquid density in kg/m³. Use the liquid density at operating temperature. The result uses additive solid and liquid volumes.
Solids by mass (%); True solids density (kg/m³); Liquid density (kg/m³).
Formula and calculation
w = Cw/100; ρm = 1/[w/ρs + (1 − w)/ρl]; Cv (%) = 100(w/ρs)/[w/ρs + (1 − w)/ρl].
Calculate slurry density and solids volume concentration from mass concentration and material densities.
Worked example
Cw = 60%; ρs = 2700 kg/m³; ρl = 1000 kg/m³ → ρm = 1607.14 kg/m³; Cv = 35.71%.
How to interpret the result
Mass percent and volume percent differ when the solid is denser than liquid. A 60% mass concentration in this example is only about 36% by volume. Label the basis on sampling sheets.
Density alone does not predict viscosity or pumpability. Particle-size distribution, mineral shape and chemistry can change rheology at the same solids concentration.
Assumptions and limits
Two-phase mixture without entrained air or volume contraction. Particle density is not loose bulk density. Dissolved solids should already be reflected in liquid density.
Frequently asked questions
Can I enter ore bulk density? Use true solids density, excluding voids between particles. Loose bulk density produces an incorrect phase-volume balance.