Phosphorus, Elemental (alias of 1381)

CAS RN:7723-14-0

Reactivities / Incompatibilities

Red: Avoid uncontrolled contact with oxidizing agents ... or with strong alkaline hydroxides. Can react violently with oxidizing agent in presence of air & moisture, liberating phosphorus acids & toxic, spontaneously flammable phosphine gas.

Air, oxidizers (including elemental sulfur & strong caustics), halogens [Note: Ignites spontaneously in moist air].

Caution: avoid contact with potassium chlorate, potassium permanganate, peroxides and other oxidizing agents; explosions may result on contact or friction.

Phosphorus boiled with alkaline hydroxides yields mixed phosphines which may ignite spontaneously in air.

A mixture of white (or yellow) phosphorus and ammonium nitrate can be exploded by percussion.

White or red phosphorus and boron triiodide react with incandescence.

A combination of finely divided phosphorus with finely divided bromates (also chlorates or iodates) of barium, calcium, magnesium, potassium, sodium, or zinc will explode with heat, percussion, and sometimes, light friction.

Phsophorus reacts vigorously below 250 deg C with any of the following materials: cesium, lithium, potassium, rubidium, sodium, sulfur.

Cesium acetylene carbide becomes incandescent when warmed in contact with phosphorus.

Phosphorus sprinkled with animal charcoal ignites at 15.5 deg C in the open air.

Phosphorus burns spontaneously in gaseous chlorine. Phosphorus (white or yellow) burns in chlorine gas with a pale green light. Red phosphorus reacts with chlorine at ordinary temperatures. Finely divided red phosphorus ignites spontaneously in chlorine at ordinary temperatures. The reaction of phosphorus and chlorine, fluorine, or bromine is highly exothermic. All can explode in contact with white phosphorus. The reaction of white phosphorus and liquid chlorine is explosive.

Yellow phosphorus reacts feebly with chlorosulfonic acid if cold. At temperatures from 25 deg to 30 deg C, the reaction begins vigorously (with evolution of hydrogen chloride and sulfur dioxide) and ends with an explosion. With red phosphorus a higher temperature is necessary to start the reaction.

When lead dioxide and red phosphorus are ground the mass ignites; with yellow phosphorus, there is an explosion.

A student was injured by an explosion when he attempted to mix these two chemicals /magnesium perchlorate and phosphorus/ in the laboratory.

A mixture of mercuric oxide and phosphorus explodes when struck with a hammer and when boiled with water and phosphorus. A mixture of mercurous nitrate and phosphorus explodes violently when struck with a hammer.

Phosphorus ignites the vapor of nitric acid and burns with an intense white light.

Phosphorus and oxygen or iodine undergo a vigorous reaction at room temperature.

If a drop of solution of phosphorus in carbon disulfide is placed on powdered potassium chlorate, an explosion occurs as the solvent evaporates.

When phosphorus is boiled with a solution of sodium or potassium hydroxide, phosphine gas is evolved which is spontaneously flammable.

If red or white phosphorus is mixed with potassium iodate and moistened with a few drops of water, the mixture reacts violently, sometimes explosively.

Crystals of potassium permanganate explode vigorously when ground with phosphorus.

Red phosphorus reacts in the cold with selenium oxychloride evolving light and heat; white phosphorus reacts explosively.

A mixture of silver nitrate and phosphorus explodes violently when struck with a hammer. When amorphous phosphorus is ground with silver oxide, the mixture ignites.

Red phosphorus and sodium chlorite react in aqueous suspension in a strongly exothermic manner. The reaction can have a sudden, almost explosive stage.

Phosphorus and sodium peroxide react with flame or explosion.

When a mixture of sulfur and yellow phosphorus is warmed, the two elements unite in all proportions with vivid combustion and powerful explosions.

Yellow phosphorus ignites after exposure to the vapor of sulfur trioxide. A piece of phosphorus dropped into liquid sulfur trioxide reduces the latter with violence. When the pieces of phosphorus are large, the heat raises the temperature of the phosphorus sufficiently to cause ignition.

Yellow phosphorus ignites when placed in boiling concentrated sulfuric acid.

Phosphorus and zirconium react with incandescence when heated in a vacuum.

The mixture /vanadium oxytrichloride and phosphorus/ produces an explosive reaction below 100 deg C with more than small amounts.

Dangerous explosion hazard by chemical reaction with ... Antimony pentafluoride, Barium bromate, Beryllium, ... Calcium bromate, Magnesium bromate, Potassium bromate, Sodium bromate, Zinc bromate, Bromine, ... Bromine trifluoride, BrN3,... Cesium, CsHC2, Cs3N, ... Chlorite, (Cl2 + heptane), ClO, Chlorine trifluoride, Chlorate ... CrO3, Cr(OCl)2, copper, NCl, Iodine monobromide, Iodine monochloride, Iodine pentafluoride, Iron, Lanthanum, ... Li2C2, Li6CS, magnesium perchlorate, manganese, ...Neodymium, nickel, nitrates, NBr, Nitrogen dioxide, Nitrogen bromide, Nitrogen chloride, NOF, FNO2, oxygen, performic acid, Platinum, ... K3N, ... K2O2, ... RbHC2, Se2Cl2, ... SeOF2, SeF4, Na2C2, Na2O2, ... Thorium, peroxyformic acid, ... halogen azides, hexalithium disilicide.

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