# Slurries - Densities

## Calculate density of a slurry

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Slurry is a mixture of a solid and a 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/ft^{3}, kg/m^{3})

c_{w }= concentration of solids by weight in the slurry (%)

ρ_{s}= density of the solids (lb/ft^{3}, kg/m^{3})

ρ_{l}= density of liquid without solids (lb/ft^{3}, kg/m^{3})

Slurry concentration by weight can be measured by evaporating a known weight of slurry - and measure the weight of dried solids.

### Example - Calculating Slurry Density

The density of a slurry where

- the density of the solids is
*2500 kg/m*^{3} - the density of the liquid is
*1000 kg/m*^{3} - the concentration of the solids is
*30%*

can be calculated as

ρ_{m}= 100 / [(30 %) / (2500 kg/m^{3}) + [(100 %) - (30 %)] / (1000 kg/m^{3})]

= 1220 kg/m^{3}

### Slurry Density Calculator

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

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