Sodium reaction Chiral synthesis Synthesis in ultralow temperature, anhydrous and oxygan free Acetylene hydrocarbon reaction Synthesis of organic fluoride Cyanogenation Hydrogenation Fixed-bed dehydrogenation, hydrogenation & ammonia oxidation   Tetrahydrofuran Molecular Structure: Specification: Testing items Value Appearance colorless clear liquid Purity % 99.5 MIN Moisture% Index of refraction nD20 1.4050 0.985 Packing: