Di-Sodium Hydrogen Phosphate Heptahydrate belongs to a class of compounds with well-established chemical utility, characterized by the molecular formula Na2HPO4 and a molecular weight of 141.959. It undergoes a phase transition losing water at 92.5 °C, exhibiting a specific gravity of 2.066 at 15 °C. This compound carries a Warning signal word due to potential eye irritation. Additionally, it is known for its role as a buffering agent and food additive.

• CAS Number: 7782-85-6
• Molecular Formula: Na2HPO4
• Exact Mass: 141.94078407
• Melting Point: MP: loses H2O at 92.5 °C; Specific gravity: 2.066 at 15 °C /Disodium phosphate dihydrate/
• GHS Signal Word: Warning
• Molecular Weight: 141.959
• Hazard Statements:
• H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]