Phosphoric Acid for Sale

• Chemical Formula: H3PO4
• Molar mass: 97.994 g·mol−1
• Density: 1.6845  g⋅cm−3 (25 °C, 85%)
• Melting point: 40–42.4 °C (104.0–108.3 °F; 313.1–315.5 K)
• Boiling point: 212 °C (414 °F; 485 K)
• Solubility: Soluble in water and ethanol
• The higher the concentration and purity of phosphoric acid the higher the crystallinity.
• Ternary medium-strong acid, ionized in three steps, not easy to volatilize, not easy to decompose, has a certain degree of oxidation and the common properties of acid. 

Phosphoric acid is the IUPAC name for orthophosphoric acid. There is no difference between them, referring to the same chemical, both describing the same compound with the chemical formula H3PO4. The prefix -ortho is used to distinguish this acid from polyphosphoric acid.

85 phosphoric acid is the selling-best phosphoric acid concentration on the market and the most widely used type of orthophosphoric acid. Phosphoric acid 85% refers to concentrated phosphoric acid containing 85 grams of H3PO4 in 100 grams of phosphoric acid solution. Check more specifications here and contact us for phosphoric acid 85 price now.

75 Phosphoric acid refers to phosphoric acid containing 75 grams of H3PO4 in 100 grams of phosphoric acid solution. We can supply both the two types, customers can choose depends on your requirements.

It is a weak acid. Because it won’t completely dissociate in aqueous solution to obtain hydrogen ions. That is, when H3PO4 is dissolved in an aqueous solution, some moles of H3PO4 remian undissociated in solution and won’t fully ionized to produce hydrogen ions. The lower the hydrogen ions in the solution, the less acidic the compound is. Some data says that it is a medium-strong acid. It just means that its acidity is stronger in weak acids.

You will find phosphoric acid food additive in many sugar-sweetened carbonated or soft drinks. In addition to to helping create a strong flavor, it can also stop bacteria and mold from multiplying. Most known bacteria grow in the ideal PH range of 6.5 to 7.0. Adding liquid phosphoric acid to drinks and foods can lower the PH to 2.5. So as to reduce the chance of bacteria growing in drinks.

Thermal Process Phosphoric Acid

The thermal process uses yellow phosphorus produced by electrothermal method as raw material. After combustion and hydration, it is made into 85% thermal process phosphoric acid. Thermal production process with heat energy recovery device usually adopts a two-step method. That is, the combustion of phosphorus and hydration of P205 are carried out in two devices respectively. The key technical key of phosphorus burning equipment is how to prevent the heat exchange tube from being corroded by high temperature P2O5 gas, and to provide good heat transfer conditions at the same time.

Wet Process Phosphoric Acid

Phosphate rock is decomposed by inorganic acid(mainly sulfuric and hydrochloric acid). First, phosphoric acid for fertilizer is obtained. Then purify and remove impurities through various steps. Finally, it is concentrated to produce industrial grade phosphoric acid. At present, the main purification methods for preparing wet process phosphoric acid include chemical precipitation, ion exchange resin, crystallization, solvent precipitation and solvent extraction. Among them, the solvent extraction method has the characteristics of high purity of the obtained products, relatively simply production process and equipment, low energy consumption, low consumption of raw materials, large production capacity, good separation effect, high recovery rate and less environmental pollution. At the same time, the production process is easy to realize automation and continuity. And it is conductive to the comprehensive utilization of resources.

Food grade phosphoric acid is produced from industrial grade phosphoric acid containing various impurities. After dissolving industrial phosphoric acid in distilled water, the solution is purified to remove impurities such as, arsenic and heavy metals. Remove cations such as, As+, Cd+, Sr+, Pt+, Th+ and U+, anions such as Cl-, F- and SO42-, as well as organics. After filtration, when the filtrate meets the food-grade requirements, it is concentrated to obtain liquid phosphoric acid used in food.  

• Packaging sealed. Store in a cool, ventilated warehouse
• Keep away from fire and heat.
• The storage temperature shouldn’t exceed 30℃, and the relative humidity shouldn’t exceed 80%.
• It should be separated from flammable substances, alkalis and active metal powders, stored separately, and avoid mixed storage.
• The storage area should be equipped with suitable materials to contain the leakage.

• The packaging should be complete at the time of shipment, the loading should be safe.
• During transportation, make sure that the container doesn’t leak, collapse, fall or damage.
• It is strictly prohibited to mix and transport with flammable or combustible materials, alkalis, active metal powders, edible chemicals, etc…
• Transportation vehicles should be equipped with emergency leakage treatment equipment.
• It should be protected from exposure, rain and high temperature during transportation.

The rust removal ability of phosphoric acid is relatively low. To make up for this shortcoming, derusting with phosphoric acid solution generally requires heating. The advantage is that the possibility of hydrogen embrittlement is small. Moreover, a small amount of solution remaining on the surface of the workpiece can be converted into an insoluble phosphate protective film. It is suitable for rust removal before welding and assembly parts are painted.

First of all, phosphoric acid is corrosive, so be safe when using it.

Within a safe dose, food additive phosphoric acid won’t cause harm to human health. However, if the intake is too large, it may cause harm to health, mainly including calcium deficiency and aggravating the burden on the liver and kidneys. After a large amount of intake, it may lead to the imbalance of calcium and phosphorus ratio in the body. And the situation of too high phosphorus and too little calcium can easily lead to calcium deficiency.