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BZ is a white crystalline powder with a bitter taste. It is odorless and nonirritating with delayed symptoms several hours after contact. [2] [3] It is stable in most solvents, with a half-life of three to four weeks in moist air; even heat-producing munitions can disperse it. It is extremely persistent in soil and water and on most surfaces.
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.
Zinc oxide eugenol (ZOE) is a material created by the combination of zinc oxide and eugenol contained in clove oil.An acid–base reaction takes place with the formation of zinc eugenolate chelate.
Glass ionomers are widely used due to their versatile properties and ease of use. Prior to procedures, starter materials for glass ionomers are supplied as a powder and liquid or as a powder mixed with water. These materials can be mixed and encapsulated. [23] Preparation of the material should involve following manufacture instructions.
After processing and cooling, the resulting white powder magnesium oxide was trucked to Permanente. [ 39 ] It only took until September 1941 to produce the first metal, and by January 1942 production was up to five tons per week, with a goal of fifteen tons a day by the end of February.
Trimethylglycine is an amino acid derivative with the formula (CH 3) 3 N + CH 2 CO − 2.A colorless, water-soluble solid, it occurs in plants. [5] Trimethylglycine is a zwitterion: the molecule contains both a quaternary ammonium group and a carboxylate group.
A powder keg is a barrel of gunpowder. The powder keg was the primary method for storing and transporting large quantities of black powder until the 1870s and the adoption of the modern cased cartridge. The barrels had to be handled with care, since a spark or other source of heat could cause the contents to deflagrate.
Buff (Latin: bubalinus) [2] [3] is a light brownish yellow, ochreous colour, typical of buff leather. [4] [5] Buff is a mixture of yellow ochre and white: [6] two parts of white lead and one part of yellow ochre produces a good buff, or white lead may be tinted with French ochre alone.