Ortho acid is phosphoric acid known as phosphoric acid. The name of IUPAC phosphoric acid is orthophosphoric acid. To distinguish this acid from other acids containing phosphorus (polyphosphoric acids), the prefix -ortho is used. There is no difference between orthophosphoric acid and phosphoric acid, as both of these names describe the same compound. Orthophosphoric acid is a weak mineral acid with the chemical formula H 3 PO 4. In addition, it is an important compound of phosphorus and of it Dihydrogen phosphate ion (H 2 PO 4 – is derived. Therefore, ion is very important for plants, because it is the main source of phosphorus. It is a medium-strength exo acid, between strong mineral acids such as hydrochloric and sulfuric acid and weak organic acids such as acetic and citric.
Here are some chemical facts about this acid:
Mole mass = 97.99 grams per mole
Melting point = 35 ° C (waterless shape)
Boiling point = 158 ° C
Appearance = a white solid, pleasant
Bo = Bi Bo
The main element of acids is represented by the number of hydrogen atoms that can be replaced by electro-positive atoms. The basis of an acid is the number of hydrogen ions that can be produced by ionizing an acid molecule in aqueous solution.
An acid that produces three ions of hydrogen or hydronium by ionizing an acid molecule is called triabasic acid or triprotic acid. For example, H3PO4 and H3PO3 are triabasic acids.
Ortho-phosphoric acid known as phosphoric acid has two production paths, wet process and thermal process. In the wet process, fluoropatite (phosphate rock) is used to produce this acid along with concentrated sulfuric acid. The chemical reaction is as follows:
Ca 5 (PO 4 ) 3F + 5H 2 SO 4 + 10H 2 O → 3H 3 PO 4 + 5CaSO4.2H2O + HF
In the thermal process, liquid phosphorus (P 4) and air in the furnace are chemically reacted with a reaction of 1800-3000 K. First, a device sprays liquid phosphorus into the furnace chamber. There, phosphorus burns in the air by reacting with oxygen. (O 2) The product of this step reacts with the water in a hydration tower to produce acid.
P 4 (l) + 5O 2 (g) 2P 2 O 5
P 2 O 5 (g) + 3H 2 O (l) → 2H 3 PO 4 (aq)
This acid is mostly used in the production of fertilizers containing phosphorus. There are three types of phosphate salts used as fertilizers.
Triple superphosphate (TSP)
Hydrogen Diammonium Phosphate (DAP)
Monoammonium dihydrogen phosphate (MAP)
This acid is a tri-proteic acid that exists in the form of a dense liquid. Irritating or corrosive to the skin, eyes and other mucous membranes of humans and laboratory animals. However, its salts show significantly lower irritability potential. Moderate toxicity has been observed in mice when exposed to inhalation. Phosphoric acid is neither genotoxic nor carcinogenic, but phosphate salts have been reported to enhance the activity of carcinogens. Phosphoric acid is one of the most popular food additives.
Ortho-phosphoric acid, also known as phosphoric acid, is mainly used in the manufacture of phosphates such as ammonium phosphate, potassium dihydrogen phosphate, disodium hydrogen phosphate, trisodium phosphate, etc. and condensate phosphate.
Because ortho-phosphoric acid is heated to temperatures above 200 ° C, it causes the loss of vapor. Water deficiency produces a sequence of acids, from pyrophosphoric acid to metaphosphoric acid.