Potassium Hydrogen Phthalate is supplied with defined handling requirements for laboratory use. It has a molecular formula of C8H6O4 and a molecular weight of 166.13. This compound decomposes at both its Boiling Point and Melting Point, which are reported as 1992 NTP values of Decomposes and 210.0 to 211.1 °C (decomposes), respectively. The GHS signal word for this substance is Danger due to its reproductive toxicity and potential skin corrosion or irritation.

• CAS Number: 877-24-7
• GHS Signal Word: Danger
• Molecular Formula: C8H6O4
• Vapour Density: 5.73
• Molecular Weight: 166.13
• Melting Point: 210.0 to 211.1 °C — decomposes
• Boiling Point: Decomposes (no boiling point)
• Exact Mass: 166.02660867
• Hazard Statements:
• H360D ***: May damage the unborn child [Danger Reproductive toxicity]
• H315: Causes skin irritation [Warning Skin corrosion/irritation]