terathane(R) 1400
terathane(R) 1400
CAS: 25190-06-1
Molecular Formula: C16H33O5X2
terathane(R) 1400 - Names and Identifiers
| Name | terathane(R) 1400 |
| Synonyms | PTMG b2000 PTMEG polifurit hiprenemc532 Terathane 1400 terathane(R) 1400 poly(butyleneoxide) Poly(tetrahydrofuran) (2S)-2-butoxybutan-1-ol glycols,polytetramethylene poly(oxy-1,4-butylene)glycol alpha-hydro-omega-hydroxy-poly(oxy-4-butanediyl) terathane 2000 polyether glycol (poly-tetrahydrof 4-butanediyl),.alpha.-hydro-.omega.-hydroxy-poly(oxy-1 |
| CAS | 25190-06-1 |
| EINECS | 607-637-9 |
| InChI | InChI=1/C8H18O2/c1-3-5-6-10-8(4-2)7-9/h8-9H,3-7H2,1-2H3/t8-/m0/s1 |
terathane(R) 1400 - Physico-chemical Properties
| Molecular Formula | C16H33O5X2 |
| Molar Mass | 305.43 |
| Density | 1g/mLat 25°C |
| Melting Point | 33-36°C |
| Boling Point | 195.7°C at 760 mmHg |
| Flash Point | >230°F |
| Vapor Presure | <0.01 mm Hg ( 25 °C) |
| Specific Gravity | 0.961 |
| PH | 7 (H2O, 20℃)Aqueous solution |
| Storage Condition | Store below +30°C. |
| Refractive Index | n20/D 1.465 |
| Physical and Chemical Properties | Polytetrahydrofuran is a white waxy solid that dissolves readily in alcohols, esters, ketones, aromatic hydrocarbons, and chlorinated hydrocarbons, and is insoluble in ester hydrocarbons and water, and becomes a transparent liquid when the temperature exceeds room temperature. |
terathane(R) 1400 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| WGK Germany | 1 |
| RTECS | MD0916000 |
| HS Code | 3907 20 20 |
| Toxicity | LD50 orally in Rabbit: > 5000 mg/kg |
terathane(R) 1400 - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| application | polytetrahydrofuran, as an important chemical raw material, is mainly used to prepare spandex in the field of chemical fiber and in the field of non-fiber for the preparation of elastomers, adhesives, coatings, sealants and other fields. polyurethane products prepared by it are wear-resistant, chemical-resistant, and have good flexibility and resilience. At present, the top three applications of polytetrahydrofuran abroad are polyurethane elastic fiber (49%), polyurethane elastomer (36%) and ester ether copolymer elastomer (15%). |
| Preparation | Using perchloric acid as a catalyst and anhydride as a capping agent, the polymerization reaction is carried out at a temperature lower than 25°C, and then sodium hydroxide solution is added to terminate the reaction, After distillation to remove unreacted tetrahydrofuran and water, the polymer is washed out of salt, and the polytetrahydrofuran ether glycol diester is obtained by distillation and dehydration, and then methanol is added for transesterification reaction, then add water to neutralize, evaporate excess methanol and methyl ester to obtain crude products, and finally dehydrate again to obtain pure polytetrahydrofuran. |
| use | used in the production of TPU, CPU, PU resin, PU slurry, polyurethane elastomer, etc. PTMEG is one of the important raw materials for the production of spandex and polyamino acid elastomer. it is used as a soft segment in urethane and can provide polyurethane products with good hydrolysis resistance, low temperature resistance and dynamic properties. It can also be used as the main raw material for elastomer products, synthetic leather resins, and elastic fibers (spandex). |
Last Update：2024-04-10 22:29:15
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