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Phosphorus pentabromide is a reactive, yellow solid of formula P Br 5, which has the structure [PBr 4] + Br − (tetrabromophosphonium bromide) in the solid state but in the vapor phase is completely dissociated to PBr 3 and Br 2.
The term alcohol originally referred to the primary alcohol ethanol (ethyl alcohol), which is used as a drug and is the main alcohol present in alcoholic drinks. The suffix -ol appears in the International Union of Pure and Applied Chemistry (IUPAC) chemical name of all substances where the hydroxyl group is the functional group with the ...
Alcohol powder or powdered alcohol or dry alcohol is a product generally made using micro-encapsulation. When reconstituted with water, alcohol (specifically ethanol) in powder form becomes an alcoholic drink. In March 2015 four product labels for specific powdered alcohol products were approved by the United States Alcohol and Tobacco Tax and ...
The metal is not attacked by sulfuric or hydrochloric acids. It dissolves in nitric acid with the evolution of nitric oxide gas to form dissolved Pb(NO 3) 2. [8] It is a well-soluble solid in water; it is thus a key to receive the precipitates of halide, sulfate, chromate, carbonate, and basic carbonate Pb 3 (OH) 2 (CO 3) 2 salts of lead. [3]
It is typically prepared from treating solutions of lead salts (e.g., (lead(II) nitrate) with bromide salts.This process exploits its low solubility in water - only 0.455 g dissolves in 100 g of water at 0 °C.
Most gold is mined as native metal and can be found as nuggets, veins or wires of gold in a rock matrix, or fine grains of gold, mixed in with sediments or bound within rock. The iconic image of gold mining for many is gold panning , which is a method of separating flakes and nuggets of pure gold from river sediments due to their great density .
Most markers have alcohol-based solvents. Other types, called paint markers, contain volatile organic compounds which evaporate to dry the ink, and are similar to spray paint . Due to solvents such as toluene and xylene often being present in permanent markers, they have a potential for abuse as a recreational drug .
With itself, lead can build metal–metal bonds of an order up to three. [91] With carbon, lead forms organolead compounds similar to, but generally less stable than, typical organic compounds [92] (due to the Pb–C bond being rather weak). [65] This makes the organometallic chemistry of lead far less wide-ranging than that of tin. [93]