The exact name for NaH2PO4 is Sodium Phosphate, Monobasic. This crucial inorganic compound plays a significant role in various scientific and industrial applications, especially in maintaining stable pH levels.
Chemical Identity: Sodium Phosphate, Monobasic
NaH2PO4 is chemically known as Sodium Phosphate, Monobasic. This name accurately describes its composition: a sodium cation (Na+) and a dihydrogen phosphate anion (H2PO4-). The term "monobasic" indicates that there is only one sodium ion associated with the phosphate group, or more specifically, that only one of the three acidic hydrogens of phosphoric acid (H3PO4) has been replaced by a sodium ion.
Understanding the "Monobasic" Designation
The phosphate ion (PO4^3-) can accept hydrogen ions, forming HPO4^2- (dibasic) and H2PO4^- (monobasic). In NaH2PO4, the phosphate group retains two hydrogen atoms, making it a "dihydrogen phosphate." When describing sodium salts of phosphoric acid, "monobasic" refers to the presence of one sodium atom per phosphate group, reflecting its role as a weak acid in aqueous solutions.
Alternative Names for NaH2PO4
While Sodium Phosphate, Monobasic is widely used, NaH2PO4 is also recognized by several other names, including:
- Sodium Dihydrogen Phosphate
- Monosodium Phosphate (MSP)
- Sodium Acid Phosphate
- Monosodium Dihydrogen Phosphate
Key Characteristics and Properties
Understanding the fundamental properties of NaH2PO4 is essential for its proper application. Below is a summary of its key characteristics:
| Property | Description
