tert Butyl methyl ether for GC
| Formula | C2H3N |
| Chemical formula | C2H3N |
| Density | 0.786 g/cm3 (20°C) |
| Molar mass | 41.05 g/mol |
| EC index number | 608-001-00-3 |
| CAS number | 75-05-8 |
| HS Code | 29269095 |
| EC number | 200-835-2 |
| Storage | 5°C to +25°C |
| SDS | available |
| RTECS | AL77000000 |
| R phrase | R 11-20/21/22-36 |
| S phrase | S 16-36/37 |
| Odour | ether like |
| Form | liquid |
| Color | Colourless |
| Explosion limit | 3.0 – 17 vol % |
| Ignation temperature | 524°C |
| Solubility in water | Soluble (20°C) |
| Solubility in ethanol | miscible |
| Solubility in chloroform | miscible |
| Flash point | 2 °C |
| Boiling point | 81.6 °c (1013 hpa ) |
| Melting point | – 45.7 °C |
| Vapour pressure | 97 hpa (20°C) |
| Viscosity dynamical | 0.316 mpa*s (25°C) |
| Saturation concentration | 163 g/m3 (20°C) |
| Appearance | Conforms | ||
| Identification | Conforms | ||
| Water | 0.02 | ||
| Color | 10 | ||
| Chlorinated Compound | ≤ | 3 | ng/ml |
| Hydrocarbon Compound | ≤ | 3 | ng/ml |
| Residue evaporation | ≤ | 3 | ng/ml |
| Purity | ≥ | 99.8 | % |
tert-Butyl Methyl Ether for GC (MTBE for GC) is a high-purity, volatile ether solvent specifically manufactured for gas chromatography applications. It is widely used in analytical, pharmaceutical, environmental, and petrochemical laboratories where low moisture content, minimal impurities, and excellent chromatographic response are essential for precise and reproducible GC analysis.
🏭⚗️ Production
Produced via catalytic etherification of isobutylene with methanol, followed by multi-stage purification including fractional distillation and advanced drying processes to achieve GC-grade quality. Strict quality controls are applied to reduce water content, peroxides, alcohol residues, and non-volatile impurities that may interfere with chromatographic detection. Each batch is tested for purity, boiling range, water content (Karl Fischer), peroxide level, residue on evaporation, and GC baseline stability. Supplied in tightly sealed, moisture-free containers, often stabilized to minimize peroxide formation during storage.
🔬 Properties
Clear, colorless liquid with a characteristic ether-like odor. Moderately polar and partially soluble in water; miscible with most organic solvents. Low boiling point and high volatility, providing sharp peak shape and fast elution in GC analysis. Low viscosity and good chemical stability under recommended storage conditions. Highly flammable and capable of forming peroxides upon prolonged exposure to air and light.
🧪 Applications
Commonly used as a GC solvent and extraction solvent in analytical and quality control laboratories. Applied in environmental testing (e.g., hydrocarbons and fuel oxygenates), pharmaceutical analysis, petrochemical studies, and residue analysis. Also used as a reaction solvent or intermediate where GC-compatible purity and minimal background interference are required.
⚠️ Safety
For laboratory use only. Highly flammable liquid and vapor. May cause eye and skin irritation; vapors may cause drowsiness or dizziness. Prolonged storage may lead to peroxide formation. Handle in well-ventilated areas or under a fume hood. Wear appropriate personal protective equipment including gloves, lab coat, and safety goggles. Store tightly closed in a cool, dry place away from heat, ignition sources, oxidizing agents, and direct sunlight. Regularly monitor peroxide levels and dispose of according to local chemical waste regulations.



