Powders

chemical compound

volcanic material formed during explosive eruptions with the diameter of the grains less than 2 mm

a cosmetic product applied to the face to serve different functions, typically to beautify the face

thumb|A thermite mixture using iron(III) oxide

thumb|right|Iron powder|alt=A small canister of metallic powder A powder is a dry 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.

process of sintering metal powders

propellant used in firearms and artillery

powder used in laser printers and photocopiers to form the printed text and images

coating applied as a free-flowing, dry powder

low explosive composition

astringent powder used for preventing diaper rash or for cosmetic uses

thumb|Kumkuma powder from Mysore, India.

experimental method in X-ray diffraction

fine powdered form of coal, which is created by the crushing, grinding, or pulverizing of coal

plant material

powder made of metal

Gulal or abir is the traditional name given to the coloured powders used for some Hindu rituals, in particular for the Holi festival or Dol Purnima (though commonly associated with the red colour used in the festival). During Holi, which celebrates love and equality, people throw these powder solutions at each other while singing and dancing. thumb|upright|Little girl playing Holi with gulaal

itching powder refers to a group of powders or powder-like substances that induce itching when applied onto human skin

alcohol in the form of a powder

water-air emulsion, consisting of 95% liquid water, in which tiny water droplets, each the size of a grain of sand, are surrounded by a sandy silica coating; the silica coating prevents the water droplets from combining into a bulk liquid

malnutrition in children

Japanese explosives

powdered form of aluminium used as a food colouring and surface colourant

device that delivers medication to the lungs in the form of a dry powder

explosive-based propellant used in large artillery and ship's guns

powder used to prevent ink from spreading and to blot up excess ink

traditional medicine against cold and fever