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Philosophers' wool/nix alba (white snow)/Zinc White – zinc oxide, formed by burning zinc in air, used as a pigment; Plumbago – a mineral, graphite; not discovered in pure form until 1564; Powder of Algaroth – antimony oxychloride, formed by precipitation when a solution of butter of antimony and spirit of salt is poured into water.
This list may not reflect recent changes. Powder; A. Abradable powder coatings; Agglomerated food powder; Alcohol powder; Aluminium powder; Anti-set-off spray powder;
Microstructure of a steel powder particle (image 0.15 mm wide) Typically, a powder can be compacted or loosened into a vastly larger range of bulk densities than can a coarser granular material. When deposited by sprinkling, a powder may be very light and fluffy. When vibrated or compressed it may become very dense and even lose its ability to ...
The FBI and Postal Service are investigating suspicious mail containing a white powder substance that was sent to election offices in at least 16 states this week, according to an ABC News canvass ...
The discovery of the white powdery substance prompted a brief evacuation of the White House on Sunday
The Secret Service is investigating a “white, powdery substance” found in the White House on Sunday that D.C. fire officials said tested positive for cocaine.
Zinc oxide is an inorganic compound with the formula Zn O.It is a white powder which is insoluble in water. ZnO is used as an additive in numerous materials and products including cosmetics, food supplements, rubbers, plastics, ceramics, glass, cement, lubricants, [12] paints, sunscreens, ointments, adhesives, sealants, pigments, foods, batteries, ferrites, fire retardants, semi conductors ...
A chemical weapon agent (CWA), or chemical warfare agent, is a chemical substance whose toxic properties are meant to kill, injure or incapacitate human beings.About 70 different chemicals have been used or stockpiled as chemical weapon agents during the 20th century, although the Organisation for the Prohibition of Chemical Weapons (OPCW) has an online database listing 35,942 chemicals which ...