If you are worrying about buying or selling 85% phosphoric acid packaging information for industry, you will be happy to see the information here. 85% phosphoric acid is the most commonly seen specification of phosphoric acid in the world. The pure product of industrial phosphoric acid is colorless transparent viscous liquid or orthorhombic crystal, odorless and very acidic. The market phosphoric acid content is mostly 85%, which is colorless transparent or slightly light-colored and thick liquid.

It should be used in electroplating industry, pharmaceutical industry, phosphate industry and metallurgical industry. Melting point 42.35 C. When the boiling point is 213 C (losing H_2O), pyrophosphate is formed. It is heated to 300 C to form metaphosphoric acid.

Its acidity is stronger than that of sulfuric acid, hydrochloric acid and nitric acid, but stronger than that of acetic acid and boric acid. It can stimulate the skin to inflame together and destroy the body tissues. Concentrated phosphoric acid can erode when heated in porcelain. It has hygroscopicity. Phosphoric acid vapor has a strong corrosive effect on skin. Workers should pay attention to protecting respiratory organs and skin.

The molar mass and density information of industrial phosphoric acid with purity of 85% are as follows:

The concentration of 85.11% concentrated phosphoric acid was 14.63 friction/liter.

The concentration of 85.54% concentrated phosphoric acid was 14.75 friction/liter.

The density of the former is 1.685 g/ml and that of the latter is 1.690 g/ml.

The highest concentration of pure phosphoric acid is 19.08 mole/liter.

Common phosphoric acid packaging methods:

Polyethylene plastic drums for phosphoric acid.

The net weight of each barrel is 20L = 35KG, 1000L cubic barrel, 1600KG, 30 tons tank car can hold 33-35 tons of 85% phosphoric acid at most.

Special attention - Phosphoric acid is easy to crystallize (ice). Placing phosphoric acid crystallization (ice) is the key. It is also important to choose the treatment method after crystallization.

Crystallization characteristics: high phosphoric acid concentration, high purity, high crystallinity. According to experience, when the temperature is about 4 degrees Celsius and the concentration is more than 85%, the crystallinity increases. If crystallized phosphoric acid (ice) is mixed carelessly, it will cause the phosphoric acid which has not crystallized (ice) to crystallize immediately. Moreover, the crystallization of phosphoric acid (ice) is unusually rapid, which leads to most crystallization of storage container of phosphoric acid (ice). After crystallization of phosphoric acid (ice), the edge of phosphoric acid in the upper part is thin, and acicular crystal (ice) in the lower part is pure phosphoric acid. According to experience, 75% phosphoric acid is difficult to crystallize (ice) at a lower temperature (near 4 C). Therefore, 75% phosphoric acid is recommended to be used at a lower temperature.

Phosphoric acid crystallization (ice) is like water freezing, its physical properties, inherent properties, can not be changed, only proper preservation and treatment can prevent crystallization (ice).

Phosphoric acid (ice) crystals, like other liquid (ice) crystals, belong to physical rather than chemical changes.

Its chemical properties will not be changed by crystallization, that is to say, the quality of phosphoric acid will not be affected by crystallization, as long as the temperature is melted or diluted by hot water, it can still be used normally.

The common heating method is to wrap phosphoric acid packaging barrel or tank truck with thermal insulation material, and heat the outer wall of phosphoric acid packaging with high temperature steam through heating pipeline.

In an exaggerated way, place it directly in a container containing phosphoric acid using 'hot fast'. This method has a great risk coefficient and should be used cautiously.

Enterprises with good conditions can consider installing self-controlled temperature and electric tracing tropical zone in their storage tank area of phosphoric acid, so that phosphoric acid can be kept in a constant temperature state from the storage process, so as to achieve non-crystallization (ice).