Slurry - Density

Calculating density of slurries

Slurry is a mixture of solids and liquid. The density of a slurry can be calculated as

ρ_m = 100 / (c_w / ρ_s  + (100 - c_w) / ρ_l)         (1)

where

ρ_m = density of slurry (lb/ft³, kg/m³)

c_w  = concentration of solids by weight in the slurry (%)

ρ_s =  density of the solids (lb/ft³, kg/m³)

ρ_l =  density of liquid without solids (lb/ft³, kg/m³)

The slurry concentration by weight can be measured by evaporating a known weight of slurry and measuring the weight of dried solids.

Example - Calculating Slurry Density

The density of a slurry where

• the density of solids is 2500 kg/m³
• the density of liquid is 1000 kg/m³
• the concentration of solids is 30%

can be calculated as

 ρ_m = 100 / ((30 %) / (2500 kg/m³) + ((100 %) - (30 %)) / (1000 kg/m³))

    = 1220 kg/m³

Slurry Density Calculator

The density of a slurry can be calculated with the calculator below:

solids concentration - (%)

density solid - (kg/m³, lb/ft³)

density liquid - (kg/m³, lb/ft³)

 

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