V2O5 Powder

 

Vanadium pentoxide is an amphoteric oxide, but mainly acidic, volatilizing significantly above 700°C. It decomposes to oxygen and vanadium tetraoxide at 700-1125°C, a property that makes it a catalyst for many organic and inorganic reactions. Vanadium pentoxide is a strong oxidizer, easily reduced to a variety of low-value oxides. Vanadium pentoxide is slightly soluble in water and readily forms stable colloidal solutions. Vanadium pentoxide is very soluble in alkali, and can form vanadate (VO-) under weak alkaline conditions. Vanadium pentoxide dissolved in strong acids (generally soluble at pH=2) does not produce vanadate ions but oxyvanadium ions in the same valence state (VO+). Vanadium pentoxide is a toxic substance with a maximum allowable level in air of less than 0.5mg/m³.

 

Product name	Vanadium Pentoxid
Grade	Industrial Grade
Color	Orange Yellow
Purity	98.5%/99%/99.5%
Shape	Powder
Solubility	Slightly soluble in water, insoluble in ethanol, soluble in strong acid, strong base.
Melting point	690ºC

Packing : powder 25kg composited bag lined with plastic bag ( paper bucket ),Flake 50kg paper bucket
 

Storage: The package shall be sealed, lightly loaded and unloaded, moisture-proof and waterproof, and shall be stored in a cool, dry, and ventilated warehouse.

 

 

 

 

The most important application of vanadium pentoxide is as a catalyst for the oxidation of sulphur dioxide to sulphur trioxide in the contact method of sulphuric acid. Further reaction of sulfur trioxide with sulfuric acid gives pyrosulfuric acid, and one pyrosulfuric acid can be added to water to form two sulfuric acids.

 

2 SO2 + O2 ⇌ 2 SO3
The general catalytic reaction takes place at 400-620°C. Below this temperature, vanadium pentoxide is not catalytically active; above this temperature, vanadium pentoxide decomposes. The catalytic mechanism of the reaction is as follows, via a low valence vanadium dioxide intermediate:

 

SO2 + V2O5(s) → SO3(g) + 2 VO2(s)
2 VO2(s) + 1/2 O2(g) → V2O5

 

 

 

Q: What is the time of delivery? Do you have it in stock?

A: Yes, we have it in stock. The exact delivery time depends on your detailed quantity and is usually around 7-15 days.

Q: What are your terms of delivery?

A: We accept FOB, CFR, CIF, etc. You can choose the most convenient way.

Q: What are your terms of payment?

A:30% payment in advance, balance payable against copy of bill of lading (or L/C)

Please contact us if you have any questions. Ensure timely and effective communication during working hours.

 

Q: Do you have quality control?

A: Yes, we have gained BV, SGS authentication.

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