You are watching: What is the name for the compound p4o10
The name may be confusing to some, because the prefix "pent-" refers to five, and also there space 10 oxygen atoms in the compound. Phosphorus pentoxide it s okay its name from the empirical formula the the compound, i m sorry is P2O5. Molecules of P2O5 room unstable and also associate v each various other to type the bigger molecules the P4O10.
Physical properties of P4O10
At room temperature, phosphorus pentoxide is a solid, white waxy substance and also is typically a powder. The molecule has actually a hexagonal shape and is held together with weak valve der Waals forces. This link is unique in the it exist in four various polymorphs. The most typical is two molecules the P2O5 joined together to form the larger P4O10. All of phosphorus pentoxide"s polymorphs are based approximately the tetrahedral plan of the phosphorus and oxygen atoms make up the compound.
It melts in ~ 340C and boils at 360C. Due to the fact that the melting point and boiling points space so close together, phosphorus pentoxide frequently skips melting and also sublimates native solid come gas.
Chemical nature of P4O10
Phosphorus pentoxide is a polar compound. It is a noncombustible compound, meaning that the does not react through oxygen to produce a flame. However, that is extremely reactive with water and also forms phosphoric mountain when merged with water. The can reason a fire if it comes in call with water-containing materials, such together cotton or wood. As soon as exposed come metal, it causes corrosion and also forms various steel oxides. It"s additionally corrosive come skin and also other tissues, resulting in chemical burns and respiratory inflammation. These irritations and injuries occur also in small concentrations. Appropriate safety procedures are required when managing phosphorus pentoxide.
Production that P4O10
Phosphorus pentoxide is generally produced through the burning of phosphorus and oxygen. Burn tetraphosphorus through a large amount the oxygen produce the compound. White phosphorus is important as the beginning material. Although adding water to phosphorus pentoxide produce phosphoric acid, the reaction does not work-related in reverse. It"s not possible to create phosphorus pentoxide through dehydrating phosphoric acid.
Uses for P4O10
Phosphorus pentoxide is frequently used in the manufacturing of phosphoric acid. Because it reacts so easily with water, it"s likewise used together a desiccant and dehydrating agent. The draws moisture the end of the wait to keep an area free from moisture. Phosphorus pentoxide has actually a propensity to form a protective layer about the outside during storage, which avoids it from illustration in any much more moisture. Since of this, it"s often used in its granular kind for drying.
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As an industrial desiccant, this link plays one intermediate role in transforming acids into their anhydride counterparts. For example, it"s used to convert nitric acid (HNO3) into nitrogen pentoxide (N2O5). Phosphorus pentoxide is likewise used in the manufacture of glass, rubber, and some laboratory procedures.
Other Names for P4O10
While phosphorus pentoxide is the most common name for P4O10, the does go by various other names, including:Diphosphorus pentoxidePhosphorus(V) oxidePhosphoric anhydrideTetraphosphorus decaoxideTetraphosphorus decoxide