Views: 36 Author: Site Editor Publish Time: 2022-07-29 Origin: Site Inquire
Phosphorus pentoxide - What is and How can you buy it?
Phosphorus pentoxide, is an inorganic compound, chemical formula P2O5, is a white powder, insoluble in acetone, ammonia, soluble in sulfuric acid, mainly used as a desiccant, desiccant, dehydrating agent, can also be used in the manufacture of high purity phosphate acid, phosphate and pesticides.
Phosphorus pentoxide molecule is actually composed of four phosphorus atoms and ten oxygen atoms, and its specific molecular structure is: in white One-one oxygen atoms are inserted into each phosphorus bond of the phosphorus molecule, and the remaining four oxygen atoms are connected to the four phosphorus atoms, respectively, through the coordination bonds Linkage.It is precisely for this reason , so it's called phosphorus pentoxide.
In fact, there is no P2O5, only P4O10, phosphorus pentoxide is a simplified form of tetraphosphorus ten oxide, equivalent to the simplest form of organic matter. Because it is a solid substance, it does not affect its mass ratio when reacts with other substances.As we all know, phosphorus pentoxide and tetraphosphorus oxide are actually the same material.
poisonous. Heat or encounter water release heat, release toxic corrosive flue gas. Strong corrosive.
Phosphorus pentoxide is the acid anhydride of phosphate. Can dissolve in water, release a large amount of heat, first form partial phosphoric acid, pyrophosphate, etc., and eventually become positive phosphoric acid.
Hygroscopic moisture in air. Contact with organic matter burns out. Contact with organic matter causes combustion risks.
Phosphorus pentoxide can cause harm to the human body through inhalation and eating.
It shows the same form of poisoning as white phosphorus.Within a few hours, nausea, vomiting, abdominal pain, diarrhea occurred, and jaundice occurred within a few days and hepatomegaly, or acute liver necrosis, the most serious cases, patients within a few hours from excitement to inhibition, fainting fan, circulatory failure, and death.
If inhaled phosphorus pentoxide, mild patients have headache, dizziness, vomiting, general weakness, moderate patients with more severe symptoms, upper abdominal pain,.
Fast pulse, low blood pressure; severe poisoning caused acute liver necrosis and coma.
Phosphorus pentoxide is used in many industries:
Feed field: as calcium hydrogen phosphate feed and chemical fertilizer in the field of flame retardant: inorganic flame retardant such as red phosphate, ammonium phosphate, ammonium polyphosphate, boron phosphate, red phosphate; organic flame retardant such as halogen-phosphorus
food industry: as a quality improvement of phosphate and phosphate food additives such as sodium bisphosphate, sodium bisphosphate
water treatment industry: as a water quality stabilizer. Such as scale inhibitors: organic or inorganic phosphate (esters) and dispersants such as sodium tripolyphosphate, sodium hexadaphosphate, sodium hypophosphate, These salts are also buffers.
Electronics industry: InP, GaP, and solid solvents of phosphate and InAs or GaAs are heavily used in the semiconductor industry, Used as piezoelectric crystals are kH2PO4 and AlPO4, And high purity hydrogen phosphate as dopant
material surface treatment: ammonium subphosphate as soft solder, Calcium hypophosphate of nutrient enhancers, Chemical plating reductant of sodium phosphate
paint, paint industry:
Detergent industry: as a detergent agent such as sodium tripolyphosphate
Being WHY is it expressed as the pentoxide not P. It is simply a convention that, while no longer used in science, is still used widely in the international fertilizer industry, though interestingly not in countries such as New Zealand. The convention came about in the 1800s when by far the most important analysis being conducted was the P and Ca content of phosphate rock (which contains little or no N). If you express the mineral nutrients in these roasted rocks as the most stable oxidation-state oxide, the total adds up to 100%, which gave a 'tidy'-looking result. This doesn't apply to manufactured fertilisers, especially those containing N, so N has always been expressed as N.
Phosphorus element belongs to one of a large number of elements of plants, and the normal growth and development of all plants cannot completely leave the phosphorus element. Fertilizer with high phosphorus content mainly include calcium superphosphate, heavy calcium superphosphate, monoammonium phosphate, diammonium phosphate, calcium and magnesium phosphate fertilizer, potassium dihydrogen phosphate, phosphate powder, etc.
P4O10 is prepared by burning tetraphosphorus with sufficient supply of oxygen:
P4 + 5 O2 → P4O10
For most of the 20th century, phosphorus pentoxide was used to provide a supply of concentrated pure phosphoric acid. In the thermal process, the phosphorus pentoxide obtained by burning white phosphorus was dissolved in dilute phosphoric acid to produce concentrated acid. Improvements in filter technology is leading to the "wet phosphoric acid process" taking over from the thermal process, obviating the need to produce white phosphorus as a starting material. The dehydration of phosphoric acid to give phosphorus pentoxide is not possible as on heating metaphosphoric acid will boil without losing all its water.
phosphorus pentoxide should store in a dry and clean warehouse. Relative humidity was kept below 75%. Stay away from fire and heat sources. The packaging must be sealed and do not be damp. Should be stored separately from flammable, combustible, alkali, etc. Not mixed storage and mixed transport. Pay attention to personal protection for packing and handling operations. Light loading and unloading when handling to prevent damage to packaging and containers. Should not be transported in rainy days. Waste: Refer to the relevant national and local regulations before disposal. Disposal by safe burial method.
At Qi Di Chem, we sell phosphorus pentoxide. The price of phosphorus pentoxide usually varies depending on the price of the raw material. For the latest price, please contact us and we will provide a quotation suitable for your country/region. We export worldwide, so you can contact us at email address mandy@czqidi.comfor a free quote, or send a message on WhatsApp for a quick response +86-186-5121-5887.
