563-79-1 - Names and IdentifiersName2,3-Dimethyl-2-buteneSynonymsBISOMER DMB 2Tetramethylethene
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| Adı | 2,3-Dimethyl-2-butene |
| Eşanlamlar | BISOMER DMB 2 Tetramethylethene Tetramethylethylene TETRAMETHYLETHYLENE 2,3-Dimethylbutene-2 2,3-Dimethyl-2-butene 2,3-DIMETHYL-2-BUTENE 2,3-Dimethylbut-2-ene 2,3-dimethyl-but-2-ene 2,3-DIMETHYL-2-BUTENE, STAB. 2,3-DIMETHYL-2-BUTENE, 1.0M SOLUTION IN TETRAHYDROFURAN |
| CAS'ın | 563-79-1 |
| EINECS'in | 209-263-8 |
| InChI'nin | InChI=1/C6H12/c1-5(2)6(3)4/h1-4H3 |
| Moleküler Formül | C6H12 |
| Molar Kütlesi | 84.16 |
| Yoğunluk | 0.708 g/mL at 25 °C (lit.) |
| Erime noktası | -75 °C (lit.) |
| Boling Point | 73 °C (lit.) |
| Flash Point | 2°F |
| Su Solubility | Soluble in water (0.071 g/L) |
| Çözünürlük | 0.071g/l |
| Buhar Basıncı | 215 mm Hg ( 37.7 °C) |
| Görüntü | Liquid |
| Özel Yerçekimi | 0.708 |
| Renk | Renksiz ve biraz sarı temizle |
| BRN | 1361357 |
| Depolama Koşulları | 2-8 ° C |
| Kararlılık | Stable. Highly flammable - readily forms explosive mixtures with air. Note low flash point. Incompatible with strong acids, strong oxidizing agents, peroxy compounds. |
| Hassas | Hava duygusu |
| Patlayıcı Sınır | 1.2%(V) |
| Kırılma Endeksi | n20/D 1.412(lit.) |
| Fiziksel ve Kimyasal Özellikler | Tetramethyl ethylene is an opaque liquid, M.P.-75 ℃, B. P. 73 ℃,n20D 1.4120, relative density 0.708,f. P. 2 F (-16 C), easy to burn, long-term contact with air is easy to be oxidized, insoluble in water, soluble in benzene, toluene, ethanol and other organic solvents. |
| Kullanım | For the production of chrysanthemum acid, spices |
| Risk Kodları | R11 - Çok ateşlenebilirPlease take the official translations! You find them here: http: // europa. eu. int/ eur- lex/ lex/ LexUriServ/ LexUriServ. do? uri=CELEX: 32001L0059: EN: HTML R65 - Harmful: May cause lung damage if swallowed R36/37/38 - Gözleri, solunum sistemini ve cildi rahatsız edici. R22 - Yutulduğunda zararlı Please take the official translations! You find them here: http: // europa. eu. int/ eur- lex/ lex/ LexUriServ/ LexUriServ. do? uri=CELEX: 32001L0059: EN: HTML R40 - Kancerogenik etkisinin sınırlı kanıtları R36/37 - Irritating to eyes and respiratory system. |
| Güvenlik Açıklaması | S16 - Ateşme kaynaklarından uzak tutun. S33 - Take precautionary measures against static discharges. S62 - If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label. S9 - Keep container in a well-ventilated place. S36/37/39 Uygun koruyucu giysiler, eldivenler ve göz/yüz koruyucu giyin. S26 - Gözlerle temas halinde hemen bol miktarda suyla durulayın ve tıbbi tavsiye alın. S36/37 Uygun koruyucu giysiler ve eldivenler giyin. |
| BM Kimlikleri | UN 3295 3/PG 2 |
| WGK Almanya | 3 |
| FLUKA MARKA F KODLARI | 10-23 |
| TSCA'nın | Evet. |
| HS Kodu | 29012980 |
| Hazır Not | Extremely Flammable/Corrosive/Harmful |
| Tehlike Sınıfı | 3 |
| Paketleme Grubu | II |
| tanıtım | 2, 3-dimethyl-2-butene is a hydrocarbon organic substance and can be used as an intermediate for pesticides and fragrances. At the same time, it is also used for the production of spices and other agricultural chemicals, especially the use of it instead of new hexene to produce tona musk spices, which has the advantages of low cost and stable product quality. |
| Kullanım | Tetramethylethylene, namely 2,3-dimethylbutene-2, is an intermediate of pyrethroid fenpropathrin. The intermediate of pesticides and spices is the main raw material for the synthesis of chrysanthemum acid. At the same time, it is also used for the production of spices and other agricultural chemicals, especially the use of it instead of new hexene to produce tona musk spices, which has the advantages of low cost and stable product quality. the raw material of agrochemical cyanuric acid pharmaceutical intermediates, used in the production of new diabetic drugs naglide used in the production of chrysanthemum acid and spices |
| üretim yöntemi | tetramethyl ethylene is obtained by dimerization of propylene. propylene is put into a dimerization kettle, a homogeneous catalyst is added, and catalytic polymerization is carried out under stirring. when the pressure in the kettle drops below 0.01MPa, the reaction of the material is stopped and the oil layer is crude steamed, remove the products of trimer and tetramer, namely C9 ~ C19. Olefins, collect the fraction at 53~75 ℃ as a crude product, which is mainly 2, 3-dimethylbutene-1, and then carry out catalytic isomerization, the reaction temperature is controlled at 85~90 ℃, so that the product is transformed into 2, 3-dimethylbutene-2, namely tetramethylbutene-2, and then carry out rectification to collect the fraction at 71~74 ℃, namely the finished product 2, 3-Dimethylbutene-2, the rest are other by-products C6 olefins. In the dimerization reaction, the one-way conversion rate of propylene is> 90%, the dimerization selectivity is 80%, and the isomerization conversion rate is 79%. |
| spontan yanma sıcaklığı | 754 °F |
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