Terephthalic Acid is noted for its consistent composition and reliable behavior, with a molecular formula of C8H6O4 and a molecular weight of 166.13. It exhibits a decomposition point both at boiling and melting temperatures, specifically between 210.0 to 211.1 °C. This compound falls under the Carboxylic acids substance group. As a hazardous material, it carries the Danger signal word, indicating potential reproductive toxicity and skin irritation.

• CAS Number: 100-21-0
• Vapour Density: 5.73
• Exact Mass: 166.02660867
• Molecular Weight: 166.13
• GHS Signal Word: Danger
• Molecular Formula: C8H6O4
• Melting Point: 210.0 to 211.1 °C — decomposes
• Boiling Point: Decomposes (no boiling point)
• Hazard Statements:
• H360D ***: May damage the unborn child [Danger Reproductive toxicity]
• H315: Causes skin irritation [Warning Skin corrosion/irritation]