Quick Search
Ammonium polyphosphate is an inorganic salt.
Ammonium polyphosphate contains ammonia.
Its chemical formula is H(NH4PO3)nOH.
Ammonium polyphosphate depends on the frequency of branching.
Ammonium polyphosphate participates in the reaction with ammonia.
Ammonium polyphosphate is an emulsifying substance.
Ammonium polyphosphate phosphoric acid can react with ammonia.
Ammonium polyphosphate is a crystalline substance.
Ammonium polyphosphate is colorless.
CAS Number:68333-79-9
Chemical formula:[NH4PO3]n(OH)2
Molecular weight:97.01 g/mol
azanium;hydron;phosphate,Ammonium phosphate-monobasic,Synonyms. Polyphosphoric acids, ammonium salts.
Ammonium polyphosphate is an inorganic salt of polyphosphoric acid and ammonia, containing both chains and possibly branching.
Its chemical formula is H(NH4PO3)nOH.
Ammonium polyphosphate depends on the number of monomers in each molecule and, to some extent, on the frequency of branching.
Shorter chains (n < 100) are more sensitive to water than longer chains (n > 1000).
Ammonium polyphosphate is less thermally stable.
However, short polymer chains are more soluble.
Ammonium polyphosphate shows increased solubility.
Ammonium polyphosphate can be prepared by reacting concentrated phosphoric acid with ammonia.
Ammonium polyphosphate is used as an emulsifier and fertilizer.
Ammonium polyphosphate is also used in many applications such as paints and coatings and as a flame retardant in various polymers.
Ammonium polyphosphate is the most important polyolefins.
especially polypropylene, where APP is part of the intumescent systems.
Ammonium polyphosphate has long chains and a specific crystallinity.
Ammonium polyphosphate begins to decompose at 240 °C to form ammonia and phosphoric acid.
Phosphoric acid acts as an acid catalyst in the dehydration of carbon-based poly-alcohols such as cellulose in wood.
Phosphoric acid reacts with alcohol groups to form phosphate esters that are not heat stable.
The esters decompose to release carbon dioxide and regenerate the phosphoric acid catalyst.
The release of non-flammable carbon dioxide in the gas phase helps dilute the oxygen in the air and the flammable decomposition products of burning material.
In the condensed phase, the resulting carbonaceous char helps protect the underlying polymer from attack by oxygen and radiant heat.
Use as a swelling agent is achieved when combined with starch-based materials such as pentaerythritol and melamine as expanding agents.
The swelling mechanisms and mode of action of Ammonium polyphosphate have been described in a number of publications.
Ammonium phosphate is an inorganic compound with the formula (NH4)3PO4.
It is the ammonium salt of orthophosphoric acid.
(NH4)3PO4, a related "double salt".
(NH4)2HPO4 is also recognized, but its use is impractical.
Both triammonium salts develop ammonia.
In contrast to the unstable nature of triammonium salts, diammonium phosphate is the monoammonium salt of (NH4)2HPO4.
Ammonium polyphosphate is stable materials widely used as fertilizers to provide stable nitrogen and phosphorus to plants.
H3PO4 + 3 NH3 → (NH4)3PO4
(NH4)3PO4 is a colorless solid.
Ammonium polyphosphate is a crystalline substance.
The solid, which has an ammonia odor, dissolves easily in water. The salt diammonium turns into hydrogen phosphate (NH4)2HPO4.
Ammonium polyphosphate (APP) and melamine polyphosphate (MPP) are two typical inorganic phosphorus flame retardants.
Ammonium polyphosphate is a branched or linear polymeric compound with a variable degree of polymerization (n).
In general, it has a low degree of polymerization.
Ammonium polyphosphate is soluble in water.
Ammonium polyphosphate is water sensitive.
Ammonium polyphosphate has a very low solubility in water.
Ammonium polyphosphate has thermal stability and lower water sensitivity.
In general, long chain Ammonium polyphosphate begins to decompose at a temperature above 300°C.
Ammonium polyphosphate produces ammonia and polyphosphoric acid.
Short-chain Ammonium polyphosphate begins to decompose at 150°C.
Ammonium polyphosphate is an inorganic salt of polyphosphoric acid and ammonia, containing both chains and possibly branching.
The properties of ammonium polyphosphate depend on the number of monomers in each molecule and, to some extent, on the frequency of branching.
Shorter chains (n < 100) are more sensitive to water than longer chains (n > 1000).
Ammonium polyphosphate is less thermally stable.
Ammonium polyphosphate is used as a flame retardant.
Ammonium polyphosphate is the most important polyolefins.
It is polypropylene in which ammonium polyphosphate is part of the swelling systems.
Ammonium polyphosphate used as flame retardant has long chains and a specific crystallinity.
They begin to decompose to form ammonium polyphosphate, ammonia and polyphosphoric acid.
Phosphoric acid acts as a catalyst in the dehydration of carbon-based poly-alcohols such as cellulose in wood.
Phosphoric acid reacts with alcohol groups to form phosphate esters that are not heat stable.
The esters decompose to release carbon dioxide and regenerate the phosphoric acid catalyst.
The release of non-flammable carbon dioxide in the gas phase helps dilute the oxygen in the air and the flammable decomposition products of burning material.
In the condensed phase, the resulting carbonaceous char helps protect the underlying polymer from attack by oxygen and radiant heat.
Ammonium polyphosphate thus prevents pyrolysis of the substrate.
Use as a swelling agent is achieved when combined with polyalcohols such as pentaerythritol and melamine as expanding agents.
Ammonium Polyphosphate is environmentally friendly.
Ammonium polyphosphate is a non-toxic, halogen-free, chemically flame retardant.
Ammonium Polyphosphate is the organic salt of polyphosphoric acid and ammonia.
The chain length (n) of this polymeric compound can be linear or branched.
There are two main types of Ammonium Polyphosphate (APP), depending on the degree of polymerization:
Ammonium polyphosphate Stage I – these are short, linear chain Ammonium polyphosphates.
Ammonium polyphosphate acts as a flame retardant in a coating that swells in the presence of other chemicals.
Properties and Areas of Use (Stage I)
Ammonium polyphosphate has high phosphorus and nitrogen content.
Ammonium polyphosphate has a high degree of polymerization.
Ammonium polyphosphate has low solubility in water, good thermal stability and low toxicity.
Ammonium polyphosphate Phase II – these APPs have a high degree of polymerization.
At the same time Ammonium polyphosphate has higher thermal stability.
Ammonium polyphosphate decomposition begins around 300°C.
Ammonium polyphosphate (APP) is 85% food grade.
Ammonium polyphosphate; It was synthesized by heating a mixture of phosphoric acid and melamine under a dry ammonia atmosphere.
Ammonium polyphosphate, preferably wet phosphoric acid containing 28-32%, is used.
Ammonium polyphosphate (APP) is widely used in agriculture.
Ammonium polyphosphate is important for its hydrolysis process, storage and application.
Ammonium polyphosphate (APP, (NH4)n+2PnO3n+1) is widely used as an inorganic polymer.
Ammonium polyphosphate with a high degree of polymerization is insoluble in water.
Ammonium polyphosphate has exceptional thermal stability.
Ammonium polyphosphate is flame retardant, making it suitable for fireproof applications.
Ammonium polyphosphate has superior water solubility.
Ammonium polyphosphate is soluble in water.
Ammonium polyphosphate is an important raw material in chelated and controlled release fertilizers.
Phosphorus in ammonium polyphosphate fertilizers exists in multiple types, including orthophosphates and polyphosphates (poly-Ps).
Ammonium polyphosphate has different chain lengths.
Ammonium polyphosphate is affected by various factors such as pH, enzymes and metal ions.
The hydrolysis rate of ammonium polyphosphate increases accordingly.
The effect of ammonium polyphosphate metal ions on poly-P hydrolysis is quite complex.
Ammonium polyphosphate is an inorganic salt of polyphosphoric acid and ammonia, containing both chains and possibly branching.
Its chemical formula is H(NH4PO3)nOH.
Ammonium polyphosphate consists of the orthophosphate radical of each monomer, a phosphorus atom with three oxygens and a negative charge neutralized by an ammonium cation.
It shows that ammonium polyphosphate releases two bonds to polymerize.
In branched states, some monomers are missing the ammonium anion and instead bind to the other three monomers.
The properties of ammonium polyphosphate depend on the number of monomers in each molecule and, to some extent, on the frequency of branching.
Ammonium polyphosphate is also used as a flame retardant.
Ammonium polyphosphate is the most important polyolefins.
Ammonium polyphosphate has a specific crystallinity.
At 240 °C they begin to decompose to form ammonia and phosphoric acid.
Phosphoric acid acts as an acid catalyst in the dehydration of carbon-based poly-alcohols such as cellulose in wood.
Phosphoric acid reacts with alcohol groups to form phosphate esters that are not heat stable.
The esters decompose to release carbon dioxide and regenerate the phosphoric acid catalyst.
The release of non-flammable carbon dioxide in the gas phase helps dilute the oxygen in the air and the flammable decomposition products of burning material.
In the condensed phase, the resulting carbonaceous char helps protect the underlying polymer from attack by oxygen and radiant heat.
Use as a swelling agent is achieved when combined with starch-based materials such as pentaerythritol and melamine as expanding agents.
The mechanisms of swelling and the mode of action of APP have been described in a number of publications.
