Product name: White phosphorus
Molecular formula: P4
Molecular weight: 123.895
Appearance: white or pale yellow solid
Fusion point: 44.1centigrade
Boiling point: 280centigrade
Packing: 200kg/ drum, drying surrounding and airproof storage.
White phosphorus, or yellow phosphorus, or simply tetraphosphorus (
P4) exists as molecules made up of four atoms. The tetrahedral
arrangement results in ring strain and instability. The molecule is
described as consisting of six single P-P bonds. Two different
crystalline forms are known. The ± form, which is stable under
standard conditions, has a body-centered cubic crystal structure.
It transforms reversibly into the ² form at 195.2 K. The ² form is
believed to have a hexagonal crystal structure.
White phosphorus is a translucent waxy solid that quickly becomes
yellow when exposed to light. For this reason it is also called
yellow phosphorus. It glows greenish in the dark ( when exposed to
oxygen) , is highly flammable and pyrophoric ( self-igniting) upon
contact with air as well as toxic ( causing severe liver damage on
ingestion and phossy jaw from chronic ingestion or inhalation) .
The odour of combustion of this form has a characteristic garlic
smell, and samples are commonly coated with white " ( di)
phosphorus pentoxide " , which consists of P4O10 tetrahedra with
oxygen inserted between the phosphorus atoms and at their vertices.
White phosphorus is only slightly soluble in water and it can be
stored under water. Indeed, white phosphorus is only safe from
self-igniting when it is submerged in water. It is, however,
soluble in benzene, oils, carbon disulfide, and disulfur
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