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Phosphorous Pentoxide(P2O5)


• P2O5is a kind of light white minicrystal powder which is made by burning phosphorus with excess oxygen.
• P2O5 is a basic material and reagent often used in chemical industry.
• Phosphorous acid is the acid anhydride of orthophosphoric acid (H3PO4). It can easily absorb moisture and then be transformed into H3PO4 by water. When reacting with water, it can produce lots of heat.
Specifications & Technical Data:

Item
Index
Analytic pure
Chemical pure
Industrial grade
Assay %≥
99.0
99.0
98.0
Clearity test
OK
---
Water insoluble matter %≤
0.02
0.02
Total N %≤
0.002
0.010
Reduced ( as P2O3) %≤
0.01
0.02
Pb %≤
0.002
0.010
As %≤
0.002
0.010
Fe %≤
0.002
0.010

• P2O5 can be used to make special catalyst based on phosphoric acid.
• P2O5 can be used to make special sodium phosphate and ammonia phosphate.
• Super phosphoric acid and poly phosphoric acid can be made by mixing P2O5 and phosphoric acid.
• P2O5 can be used as colorless condensating agent or firming agent in making transparent resin.
• P2O5 can be used to manufacture phosphate mono ester and phosphodiester. Phosphoric acid will produce acid ester if directly reacting with appropriate alcohol or phenol. P2O5 can give off phosphorous alkylamine if reacted with alkylamine. Due to its hygroscopicity, P2O5 can be used as drying agent.
• P2O5 can be used as the catalyst for making blown bitumen as well as for bitumen. It can improve the viscosity of bitumen.

Specifications for Delivery

Packing Net Weight
Woven bag 30kg 20kg 15kg 10kg 5kg
Iron drum 200kg
Bottle 2kg 1kg

It can also be packed according to client's requirements. P2O5 can only be loaded with blade and avoid moisture in delivery in Europe. It can be kept for 12 months in sealed drum.

Polyphosphoric Acid

1. Name: Poiyphosphoric Acid (PPA)
2. Molecular Formula: H6P4O13
3. Molecular Weight: 337.93
4. Behavior: colorless transparent heavy-bodied liquid, easy to get deliquescent, corrosive, and not cystallize. It can be mixed with water,hydrolyzed to orthophosphoric acid. Its specific gravity is 2.1g/cm3.
5. Quality Standard: Company standard

    • Appearance: Colorless transparent thick fluid
    • Density: 2.05g/cm3-2.15g/cm3
    • P2O5 >82.0%
    • Chloride<0.001%
    • Sulfate radical <0.01%
    • Fe<0.01%
    • As<0.01%

6. Application
PPA is widely used in industries including medicine, aromatics, leather, chemical industry, etc.. It is used as cyclizing agent, acidifier and dehydrant in organic synthesis. It can also be used as the substitute for orthophosphoric acid.

7. Packing, Storage and Delivery
35kg plastic drum, 2nd level inorganic acid corrosive. Please keep it in shady, cool and ventilating place. Avoid air, inflammable matters and oxidants. Keep it away from substance whose PH value is above 7. Be cautious in loading and unloading.

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