Tetrahydrofuran | 109-99-9
Xogta Jirka ee Alaabta:
| Magaca Alaabta | Tetrahydrofuran |
| Guryaha | Dareere aan midab lahayn oo aan midab lahayn oo leh eter-u egur. |
| Meesha dhalaalaysa°C) | -108.5 |
| Barta karkarinta°C) | 66 |
| Cufnaanta qaraabada (Biyaha=1) | 0.89 |
| Cufnaanta uumiga qaraabada (hawo=1) | 2.5 |
| Cadaadiska uumiga oo buuxa (kPa) | 19.3 (20°C) |
| Kulaylka gubashada (kJ/mol) | -2515.2 |
| Heerkulka daran (°C) | 268 |
| Cadaadis halis ah (MPa) | 5.19 |
| Octanol/qaybinta qaybinta biyaha | 0.46 |
| Barta toosh (°C) | -14 |
| Heerkulka dabka (°C) | 321 |
| Xadka qaraxa sare (%) | 11.8 |
| Xadka qaraxa hoose (%) | 1.8 |
| Solubility | Waxoogaa ku milmay biyaha, ku milmay ethanol, ether. |
Hantida Alaabta iyo Deganaanshaha:
1.Dareere hufan oo aan midab lahayn oo leh ur ether-u eg. Ku qallafsanaan biyo. Isku-darka azeotropic ee biyaha ayaa milmi kara acetate cellulose iyo alkaloids kafeyn, iyo wax qabadku wuxuu ka fiican yahay kan tetrahydrofuran oo keliya. Walxaha guud ee dabiiciga ah sida ethanol, ether, aliphatic hydrocarbons, hydrocarbons caraf udgoon, hydrocarbons koloriin ah, iwm. ayaa si fiican loogu milmi karaa tetrahydrofuran. Way fududahay in lagu daro oksaydhaynta hawada si loo dhaliyo peroxide qarax. Waa mid aan qudhun u lahayn biraha, waxayna naxaysaa baco iyo caag badan. Barta karkarinta awgeed, barta iftiimaysa waa yar tahay, way fududahay in dab lagu qabto heerkulka qolka. Ogsajiinta hawada ku jirta inta lagu jiro kaydinta waxay dhalin kartaa peroxide qarxa oo leh tetrahydrofuran. Peroxides waxay u badan tahay in la sameeyo marka ay jiraan xaalado iftiin iyo anhydrous ah. Sidaa darteed, 0.05% ~ 1% hydroquinone, resorcinol, p-cresol ama cusbada birta ah iyo walxaha kale ee yareeya ayaa inta badan lagu daraa sida antioxidants si loo xakameeyo jiilka peroxides. Alaabadani waa sun yar, hawlwadeenku waa inuu xidhaa qalabka ilaalinta.
2. Xasilooni: Xasilooni
3.Waxyaabaha la mamnuucay: Acids, alkali, wakiilada oksaydhiyeyaasha xooggan, ogsijiinta
6.Xaaladaha looga hortagayo soo-gaadhista: Iftiin, hawo
7.Polymerisation halis: Polymerisation
Codsiga Alaabta:
1.Waxaa si weyn loo isticmaalaa sababta oo ah permeability wanaagsan iyo diffusivity in ay dusha iyo gudaha resins. Waxaa loo isticmaalaa sida dareere falcelin qaabaysan, falcelinta polymerisation, falcelinta uumiga dhimista LiAlH4 iyo falcelinta esterification. Kala dirida chloride polyvinyl, chloride polyvinylidene iyo copolymers-kooda waxay keenaysaa xal yar oo viscosity ah, kaas oo caadi ahaan loo isticmaalo soo saarista dahaarka dusha sare, dahaarka ilaalinta, xabagta iyo filimada. Waxa kale oo loo isticmaalaa khad, rinjiga jeexjeexa, saarista, daaweynta dusha sare ee maqaarka macmalka ah. Alaabtani waa is-polymerisation iyo copolymerisation, waxay soo saari kartaa elastomer poliurethane nooca polyether. Alaabtani waa walxo kiimiko ah oo ceeriin ah oo muhiim ah, waxaa la diyaarin karaa butadiene, naylon, polybutylene glycol ether, γ-butyrolactone, polyvinylpyrrolidone, tetrahydrothiophene iyo wixii la mid ah. Alaabtan waxa kale oo loo isticmaali karaa sidii dhex dhexaad u ah isku-dhafka dabiiciga ah sida daroogooyinka.
2.Tetrahydrofuran waxay ku milmi kartaa dhammaan xeryahooda dabiiciga ah oo aan ahayn polyetylen, polypropylene iyo fluorine resins, gaar ahaan chloride polyvinyl, chloride polyvinylidene iyo butylaniline waxay leeyihiin milmo wanaagsan, waxaa si ballaaran loo isticmaalaa sida dareeraha falcelinta.
3.Sida dareeraha caadiga ah, tetrahydrofuran ayaa si caadi ah loogu isticmaalay dahaarka dusha sare, dahaarka ilaalinta, khadadka, soosaarayaasha iyo daaweynta dusha sare ee maqaarka macmalka ah.
4.Tetrahydrofuran waa alaab muhiim ah oo ceeriin ah oo loogu talagalay soo saarista polytetramethylene ether glycol (PTMEEG) iyo dareere weyn oo loogu talagalay warshadaha dawooyinka. Waxa loo isticmaalaa sida dareere loogu talagalay resins-dabiiciga ah iyo synthetic (gaar ahaan resins vinyl), sidoo kale loo isticmaalo soo saarista butadiene, adiponitrile, adiponitrile, adipic acid,hexanediamine iyo wixii la mid ah.
5.Isticmaal sida dareere, kiimikaad dhexdhexaad ah, reagent gorfaynta.
Qoraalada Kaydinta Alaabta:
1. Ku kaydi bakhaar qabow oo hawo leh.
2. Ka fogow dabka iyo isha kulaylka.
3. Heerkulka bakhaarku waa inuusan dhaafin 29°C.
4.Ka ilaali weelka oo xiran, oo aan la xiriirin hawada.
5. Waa in si gooni ah loo kaydiyaa walxaha oksida, acids,alkalisiwm.waana inaan marnaba la isku darin.
6.Aqbal nalalka aan qarxin karin iyo tas-hiilaadka hawada.
7. Mamnuuci isticmaalka qalabka farsamada iyo qalabka si fudud loo dhalin karo.
8.Aagga kaydinta waa in lagu qalabeeyaa qalab daawaynta degdega ah ee daadsan iyo agab hoy oo ku habboon.
