On the investigation of the properties of a substance
There is a thing called Phosguard, which is similar to acid in nature, but it is phosphoric acid (Phosphoric Acid) or phosphorous acid (Phosphorous Acid). Many people are divided and disagree.

Phosphoric acid has strong properties. It often shows an active state in various reactions, can combine with multiple substances to form various compounds, and has a wide range of applications. It is indispensable in various fields such as industry, agriculture, and medicine. Looking at its chemical properties, it is strongly acidic, can neutralize with bases, form salts and water, and is often an oxidizing agent in redox reactions.

Phosphoric acid is weaker than phosphoric acid, but it also has the general nature of acid. It has a unique performance in chemical reactions and can participate in specific reactions to form products with unique characteristics. In its structure, the valence state of phosphorus is different from that of phosphoric acid, which is the key to distinguish the two.

To distinguish Phosguard from phosphoric acid or phosphoric acid, first observe its chemical structure. Observe the arrangement of its atoms, the type and number of chemical bonds, and this is the basis. If its structure, the number of hydroxyl groups attached to phosphorus, the valence state of oxygen, etc. conform to the characteristics of phosphoric acid, it can be broken off as phosphoric acid; conversely, if the structure is similar to phosphoric acid, it should be classified as phosphoric acid.

The chemical properties can be tested at the second time. Use common reagents to react with it and observe its phenomenon. If it reacts with a specific metal, observe whether it produces hydrogen and the intensity of the reaction; if it reacts with a base, measure the equivalent of acid-base neutralization, depending on whether it matches the theoretical value of phosphoric acid or phosphoric acid.

can also be analyzed with the help of instruments. If the method of spectral analysis is used, observe the characteristic peak of its absorption spectrum or emission spectrum, and compare it with the known phosphoric acid and phosphoric acid spectra to accurately distinguish.

However, it is not easy to distinguish the properties of this object. It is necessary to carefully investigate the comprehensive structure, properties, analysis results and other factors before concluding, in order to solve the confusion of everyone, to determine whether Phosguard is phosphoric acid or phosphoric acid.