Home › Chemicals › tert-Butanol CAS 75-65-0: tert-Butanol (C4H10O) Identity CAS Number 75-65-0 Molecular Formula C4H10O IUPAC Name 2-methylpropan-2-ol Molecular Weight 74.12 g/mol SMILES CC(C)(C)OSynonyms tert-butyl alcohol, TBA, 2-methyl-2-propanol, trimethyl carbinol
2D Structure
Physical Properties Density 0.786 g/mL at 25°C Boiling Point 82.4°C Melting Point 25.7°C Flash Point 11.0°C Vapor Pressure 4.1 kPa at 20°C Refractive Index nD = 1.387 Dielectric Constant ε = 12.5
Safety & GHS Classification Flammable Irritant
H225: Highly flammable liquid and vapor H319: Causes serious eye irritation H332: Harmful if inhaled H335: May cause respiratory irritation Storage: Store at room temperature above its melting point (25.7°C). Solidifies in cool conditions. Keep away from heat, sparks, and open flames. Store away from strong oxidizers and mineral acids.
Material Compatibility Matrix Plastics Material Rating PTFE Excellent PVC Fair PE Good PP Good PEEK Excellent PVDF Good
Rubbers Material Rating Viton Good NBR Good EPDM Excellent Silicone Good FKM Good
Metals Material Rating Stainless 316 Excellent Aluminum Excellent Copper Excellent Brass Excellent
Applications Solvent for pharmaceuticals and coatings Denaturant for ethanol Gasoline octane booster (MTBE precursor) Chemical intermediate for tert-butyl esters Laboratory reagent for organic synthesis Paint remover additive External References: PubChem
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