Appearance : Colorless liquid
Chemical Name: Phosphoric Acid
Chemical Formula: H3PO4
Packaging Type: It can be transported in 35 kg Canisters, IBC tanks and Iso tanks or Stainless Tankers in bulk.
Usage areas :
Phosphoric acid is produced industrially by a wet method in which sulfuric acid reacts with apatite (tricalcium phosphate rock).
Ca 5 (PO 4 ) 3 CI + 5H 2 SO 4 + 10H 2 O → 3H 3 PO 4 + 5 CaSO 4 2H 2 O + HCI
The resulting phosphoric acid solution is about 32-46% H3PO4, so it is then concentrated (by water evaporation) to produce a commercial grade of higher concentration of phosphoric acid.
Pure phosphoric acid is a white crystalline solid with a melting point of 42.35 °C. When less concentrated, it is a colorless, odorless, viscous liquid with a density of 1.885 g/mL. It is non-toxic and non-volatile. The most common concentration of phosphoric acid is 85% in water.
Phosphoric acid has three acidic and replaceable H atoms. Thus, it reacts differently from other mineral acids. It can react with bases to form three classes of salts by replacing one, two, or three H atoms, such as NaH2PO4, Na2HPO4 and Na3PO4, respectively.
At high temperatures, phosphoric acid molecules can react and combine (with loss of water molecule) to form dimers, trimers, and even long polymeric chains such as polyphosphoric acids and metaphosphoric acids.
2H 3 PO 4 → lH 4 P 2 O 7 (- H 2 O)
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