1. Phosphoric acid

Phosphoric acid (CAS No. 7664-38-2) is one kind of mineral (inorganic) acid. And the chemical formula of phosphoric acid is H₃PO₄ and molecular weight of phosphoric acid is 97.99. And as to the pka of phosphoric acid, its detailed information is as below: pKa1: 2.12; ; pKa2: 7.21; pKa3: 12.67. For being one kind of inorganic acid, Phosphoric acid is one important intermediate product in industrial products.

2. Properties of phosphoric acid

1). Density of phosphoric acid: 1.885 g/mL (liquid)/1.685 g/mL (85% solution)/2.030 g/mL (crystal at 25 °C)
2). Chemical formula of phosphoric acid: H₃PO₄
3). Molecular weight of phosphoric acid: 97.99
4). Molar mass of phosphoric acid: 97.994 g/mol
5). Specific gravity of phosphoric acid: 1.685@25C (water=1)
5). Viscosity of phosphoric acid: 2.4–9.4 cP (85% aq. soln.) 147 cP (100%)

3. Is phosphoric acid a strong acid?

Is phosphoric acid a strong acid? We should note that phosphoric acid is one kind of mediate strong acid. As to the problem of "phosphoric acid strong or weak", we will explain it below. The acidity of phosphoric acid is much weaker than sulfuric acid, hydrochloric acid, and nitric acid, while stronger than acetic acid and boric acid. Need more detailed properties information of Phosphoric acid, you could refer to the Phosphoric acid manufacturer, such as Yunnan Chengjiang U-best Industrial Co., Ltd. This company is specialized in the research, develop, manufacturing and distribution of chemical products including rock phosphate, phosphorus chemical industry, chemical raw materials and other phosphorus products.