Tris(hydroxymethyl)aminomethane
- CAS NO. : 77-86-1
- CAT NO. : FO-OOC-7861
Physical State: Solid (white crystalline powder)
Color/Appearance: White to off-white crystalline solid
Melting Point: 167–172 °C (lit.)
Boiling Point: 219–220 °C at 10 mmHg (lit.)
Density: 1.35 g/cm³ at 23 °C (lit.)
Refractive Index: 1.4170 (estimated)
Solubility:
Water: Approximately 678 g/L at 20 °C (clear, colorless solution)
Ethanol: Slightly soluble
Ethyl Acetate: Very slightly soluble
Ether and Carbon Tetrachloride: Insoluble
Vapor Pressure: 0.0267 hPa at 20 °C (lit.)
Flash Point: Non-flammable
pH:
0.1 M aqueous solution: 10.2–10.6 at 20 °C (lit.)
4 M aqueous solution: 10.5–12.0 at 25 °C (lit.)
pKa: 8.1 at 25 °C (lit.)
Useful pH Range: 7–9
Storage Conditions: Store in a sealed container at 15–25 °C, protected from moisture and light
Stability: Stable under normal conditions; incompatible with strong oxidizing agents
Molecular Formula: C₄H₁₁NO₃
Molecular Weight: 121.14 g/mol
