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109-99-9
industrial grade
C4h8o
29321100
Hot selling Tetrahydrofuran/Thf 99.9% CAS No. 109-99-9
Tetrahydrofuran (THF), or oxolane, is an organic compound with the formula (CH2)4O. The compound is classified as heterocyclic compound, specifically a cyclic ether. It is a colorless, water-miscible organic liquid with low viscosity. It is mainly used as a precursor to polymers. Being polar and having a wide liquid range, THF is a versatile solvent.
About 200,000 tonnes of tetrahydrofuran are produced annually. The most widely used industrial process involves the acid-catalyzed dehydration . Ashland/ISP is one of the biggest producers of this chemical route. The method is similar to the production of diethyl ether from ethanol. The butanediol is derived from condensation of acetylene with formaldehyde followed by hydrogenation.DuPont developed a process for producing THF by oxidizing n-butane to crude maleic anhydride, followed by catalytic hydrogenation. A third major industrial route entails hydroformylation of allyl alcohol followed by hydrogenation to 1,4-butanediol.
| Product name | Adipic acid | |||
| Item | Supperior class | First class | Qualified | Result |
| Apprearance | white crystaline powder | white crystaline powder | ||
| Purity % m/m | 99.7 min | 99.7 min | 99.5 min | 99.8 |
| Melting point | 151.5 min | 151.5 min | 151 min | 152.8 |
| Ammonias solution color, pt-co | 5 max | 5 max | 15 max | 1 |
| Moisture % m/m | 0.20 max | 0.27 max | 0.4 max | 0.17 |
| Ash, mg/kg | 7 max | 10 max | 35 max | 4 |
| Iron, mg/kg | 1.0 max | 1.0 max | 3.0 max | 0.3 |
| Nitric acidS, mg/kg | 10.0 max | 10.0 max | 50.0 max | 1.1 |
| Oxidable matter, mg/kg | 60 max | 70 max | --- | 17 |
| Chroma of melts, pt-co | 50 max | --- | --- | 10 |
Hot selling Tetrahydrofuran/Thf 99.9% CAS No. 109-99-9
Tetrahydrofuran (THF), or oxolane, is an organic compound with the formula (CH2)4O. The compound is classified as heterocyclic compound, specifically a cyclic ether. It is a colorless, water-miscible organic liquid with low viscosity. It is mainly used as a precursor to polymers. Being polar and having a wide liquid range, THF is a versatile solvent.
About 200,000 tonnes of tetrahydrofuran are produced annually. The most widely used industrial process involves the acid-catalyzed dehydration . Ashland/ISP is one of the biggest producers of this chemical route. The method is similar to the production of diethyl ether from ethanol. The butanediol is derived from condensation of acetylene with formaldehyde followed by hydrogenation.DuPont developed a process for producing THF by oxidizing n-butane to crude maleic anhydride, followed by catalytic hydrogenation. A third major industrial route entails hydroformylation of allyl alcohol followed by hydrogenation to 1,4-butanediol.
| Product name | Adipic acid | |||
| Item | Supperior class | First class | Qualified | Result |
| Apprearance | white crystaline powder | white crystaline powder | ||
| Purity % m/m | 99.7 min | 99.7 min | 99.5 min | 99.8 |
| Melting point | 151.5 min | 151.5 min | 151 min | 152.8 |
| Ammonias solution color, pt-co | 5 max | 5 max | 15 max | 1 |
| Moisture % m/m | 0.20 max | 0.27 max | 0.4 max | 0.17 |
| Ash, mg/kg | 7 max | 10 max | 35 max | 4 |
| Iron, mg/kg | 1.0 max | 1.0 max | 3.0 max | 0.3 |
| Nitric acidS, mg/kg | 10.0 max | 10.0 max | 50.0 max | 1.1 |
| Oxidable matter, mg/kg | 60 max | 70 max | --- | 17 |
| Chroma of melts, pt-co | 50 max | --- | --- | 10 |
