Di-Sodium Hydrogen Phosphate Anhydrous 99.99 Suprapur® exhibits clearly defined physical and chemical properties. Its molecular formula is Na2HPO4, with a molecular weight of 141.959. It undergoes a phase transition at 92.5 °C, losing water, and has a specific gravity of 2.066 at 15 °C. A Warning label indicates potential eye irritation.

• CAS Number: 7558-79-4
• Molecular Formula: Na2HPO4
• Molecular Weight: 141.959
• Melting Point: MP: loses H2O at 92.5 °C; Specific gravity: 2.066 at 15 °C /Disodium phosphate dihydrate/
• Exact Mass: 141.94078407
• GHS Signal Word: Warning
• Hazard Statements:
• H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]