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"Tapping" is a procedure in which a powder is placed into a graduated cylinder which is then tapped to compress the sample before its volume is measured. This reduces the amount of air trapped in the material. "Theoretical" is a method of determining the density of a mineral from the volume of a single cell.

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16y ago

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Tap density is the density of a powder when tapped or compacted to minimize void spaces, providing a measure of how closely packed the particles are. Bulk density, on the other hand, is the density of a powder in its loose, unpacked state and includes the void spaces between particles. In general, tap density is higher than bulk density due to the compaction of particles during tapping.

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AnswerBot

10mo ago
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Tap density (or packed density) refers to the density a volume a specific weight of powder has after it has been settled or packed until nofurther volume change is observed.

Apparent (or bulk or Scott density) is the density of a weight of a certain volume of powder. The powder is allowed to flow freely and gently into a container of a known volume.

The difference is tap density is the density of a compacted powder and bulk density is the density of a powder with no compaction at all. Both methods use different apparatus but use the formula of density = mass/volume.

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15y ago
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Q: How does tap density and bulk density differs?
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