Powder
Dry, bulk solid composed of fine, free-flowing particles / From Wikipedia, the free encyclopedia
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This article is about the substance. For the sci-fi film, see Powder (1995 film). For other uses, see Powder (disambiguation).
"powders" redirects here. For Eartheater album, see Powders (album).
A powder is a dry, bulk solid composed of many very fine particles that may flow freely when shaken or tilted. Powders are a special sub-class of granular materials, although the terms powder and granular are sometimes used to distinguish separate classes of material. In particular, powders refer to those granular materials that have the finer grain sizes, and that therefore have a greater tendency to form clumps when flowing. Granulars refer to the coarser granular materials that do not tend to form clumps except when wet.
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