# Slurries - Densities

## Calculate density of a slurry

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

ρm = 100 / [cw / ρs  + [100 - cw] / ρl]                                 (1)

where

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

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

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

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

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

can be calculated as

ρm = 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)

## Related Topics

• Material Properties - Material properties for gases, fluids and solids - densities, specific heats, viscosities and more
• Density - Density of different solid materials, liquids and gases. Definitions and convertion calculators.

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