Tech Factory Price 115% 105% 117% Polyphos Phoric Acid PPA in Stock Polyphosphoric Acid/Phosphate/ CAS No. 8017-16-1 Used for Compounds Cyclizing Agent

PPA is colorless transparent viscous liquid, hygroscopic, non-crystallizable,corrosive, water soluble into orthophosphate acid. Acidity is weaker than nitric acid and sulfuric acid. Non-oxidicability, could cause burns when meeting H vesicant. Specific gravity is 2.1g/cm3. Normal boiling point is 856ºC, keeping hard glassy block upon lowtemperature and liquid when heating up to 50~60ºC. Relative density is 1.987(P2O5 80.0%); 2.052(P2O5 84.0%); 2.084(P2O5 86.0%). Hazard label 20 (corrosives acidic properties). High viscidity, hard to stir or pour under normal temperature, and easily to operate when temperature is above 60ºC, omit heat when solublein water, should be under ice-bath station when making dilution.

Crovell Biotech (Hebei) Co., Ltd is Located in Shijiazhuang, Hebei Province. Crovell is specialized in pharmaceutical intermediates, veterinary intermediates and dyes intermediates. Crovell also supply various industrial chemicals for customers. 

After ten years development ,Crovell has become a Diversified development company, not only involves in chemicals, but also real estate ,clothes ,agricultural products and so on.

So far, Crovell has business in more than 50 countries, most big customers come from Europe and America, because among the suppliers in china, Crovell can always make the product quality best, some of the products from Crovell can reach the purity of 99.9+. This is the important reason for customers who choosing Crovell.

In the future, Crovell must become a more important trade bridge for china and foreign countries especially in pharmaceutical industries.

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