• 四氫呋喃 [109-99-9]

  • 英文名:Tetrahydrofuran
  • 別名:一氧五環(huán) 氧雜環(huán)戊烷 四甲撐氧 四氫化氧雜茂 氧戊環(huán)
  • CAS號(hào):109-99-9 分子式:C4H8O 分子量:72.11
T27863-500ml 四氫呋喃 [109-99-9] 99.5%,Extra Dry,with molecular sieves,stabilized with BHT,Water≤50ppm(byK.F.) 500ml 150.00 促銷價(jià):94.50
T27864-100ml 四氫呋喃 [109-99-9] 99.5%,Extra Dry,with molecular sieves,stabilized with BHT,Water≤50ppm(byK.F.) 100ml 83.00 促銷價(jià):52.29
T27865-1L 四氫呋喃 [109-99-9] 99.5%,Extra Dry,with molecular sieves,stabilized with BHT,Water≤50ppm(byK.F.) 1L 283.00 促銷價(jià):178.29
T27867-500ml 四氫呋喃 [109-99-9] ACS,>99.5% (GC) 500ml 82.00
T27869-500ml 四氫呋喃 [109-99-9] AR 500ml 88.00 促銷價(jià):55.44
T27868-500ml 四氫呋喃 [109-99-9] GR,99.5% 500ml 91.00 促銷價(jià):57.33
T27861-500ml 四氫呋喃 [109-99-9] HPLC, ≥99.9% 500ml 120.00
T27860-5ml 四氫呋喃 [109-99-9] standard for GC, ≥99.9% (GC) 5ml 37.00
T27860-500ml 四氫呋喃 [109-99-9] Water≤50 ppm(by K.F.),99.5%,SafeDry,stabilized with BHT,Safeseal 500ml 185.00 促銷價(jià):138.75
T27861-100ml 四氫呋喃 [109-99-9] Water≤50 ppm(by K.F.),99.5%,SafeDry,stabilized with BHT,Safeseal 100ml 92.00 促銷價(jià):69.00
T27862-500ml 四氫呋喃 [109-99-9] 光譜級(jí), ≥99.5% 500ml 172.00
T27865-500ml 四氫呋喃 [109-99-9] 無水級(jí),99.9% 500ml 520.00
T27864-100ml 四氫呋喃 [109-99-9] 無水級(jí),99.9% 100ml 180.00
T27863-25ml 四氫呋喃 [109-99-9] 無水級(jí),99.9% 25ml 83.00
訂貨編號(hào) 商品名稱 規(guī)格 包裝 單價(jià) 促銷價(jià) 會(huì)員價(jià) 數(shù)量
T27863-500ml 四氫呋喃 [109-99-9] 99.5%,Extra Dry,with molecular sieves,stabilized with BHT,Water≤50ppm(byK.F.) 500ml 150.00 94.50 登錄可見
T27863-500ml 四氫呋喃 [109-99-9] 99.5%,Extra Dry,with molecular sieves,stabilized with BHT,Water≤50ppm(byK.F.) 500ml 150.00 促銷價(jià):94.50
T27864-100ml 四氫呋喃 [109-99-9] 99.5%,Extra Dry,with molecular sieves,stabilized with BHT,Water≤50ppm(byK.F.) 100ml 83.00 52.29 登錄可見
T27864-100ml 四氫呋喃 [109-99-9] 99.5%,Extra Dry,with molecular sieves,stabilized with BHT,Water≤50ppm(byK.F.) 100ml 83.00 促銷價(jià):52.29
T27865-1L 四氫呋喃 [109-99-9] 99.5%,Extra Dry,with molecular sieves,stabilized with BHT,Water≤50ppm(byK.F.) 1L 283.00 178.29 登錄可見
T27865-1L 四氫呋喃 [109-99-9] 99.5%,Extra Dry,with molecular sieves,stabilized with BHT,Water≤50ppm(byK.F.) 1L 283.00 促銷價(jià):178.29
T27867-500ml 四氫呋喃 [109-99-9] ACS,>99.5% (GC) 500ml 82.00 82.00 登錄可見
T27867-500ml 四氫呋喃 [109-99-9] ACS,>99.5% (GC) 500ml 82.00
T27869-500ml 四氫呋喃 [109-99-9] AR 500ml 88.00 55.44 特價(jià)產(chǎn)品 登錄可見
T27869-500ml 四氫呋喃 [109-99-9] AR 500ml 88.00 促銷價(jià):55.44
T27868-500ml 四氫呋喃 [109-99-9] GR,99.5% 500ml 91.00 57.33 特價(jià)產(chǎn)品 登錄可見
T27868-500ml 四氫呋喃 [109-99-9] GR,99.5% 500ml 91.00 促銷價(jià):57.33
T27861-500ml 四氫呋喃 [109-99-9] HPLC, ≥99.9% 500ml 120.00 120.00 登錄可見
T27861-500ml 四氫呋喃 [109-99-9] HPLC, ≥99.9% 500ml 120.00
T27860-5ml 四氫呋喃 [109-99-9] standard for GC, ≥99.9% (GC) 5ml 37.00 37.00 登錄可見
T27860-5ml 四氫呋喃 [109-99-9] standard for GC, ≥99.9% (GC) 5ml 37.00
T27860-500ml 四氫呋喃 [109-99-9] Water≤50 ppm(by K.F.),99.5%,SafeDry,stabilized with BHT,Safeseal 500ml 185.00 138.75 登錄可見
T27860-500ml 四氫呋喃 [109-99-9] Water≤50 ppm(by K.F.),99.5%,SafeDry,stabilized with BHT,Safeseal 500ml 185.00 促銷價(jià):138.75
T27861-100ml 四氫呋喃 [109-99-9] Water≤50 ppm(by K.F.),99.5%,SafeDry,stabilized with BHT,Safeseal 100ml 92.00 69.00 登錄可見
T27861-100ml 四氫呋喃 [109-99-9] Water≤50 ppm(by K.F.),99.5%,SafeDry,stabilized with BHT,Safeseal 100ml 92.00 促銷價(jià):69.00
T27862-500ml 四氫呋喃 [109-99-9] 光譜級(jí), ≥99.5% 500ml 172.00 172.00 登錄可見
T27862-500ml 四氫呋喃 [109-99-9] 光譜級(jí), ≥99.5% 500ml 172.00
T27865-500ml 四氫呋喃 [109-99-9] 無水級(jí),99.9% 500ml 520.00 520.00 登錄可見
T27865-500ml 四氫呋喃 [109-99-9] 無水級(jí),99.9% 500ml 520.00
T27864-100ml 四氫呋喃 [109-99-9] 無水級(jí),99.9% 100ml 180.00 180.00 登錄可見
T27864-100ml 四氫呋喃 [109-99-9] 無水級(jí),99.9% 100ml 180.00
T27863-25ml 四氫呋喃 [109-99-9] 無水級(jí),99.9% 25ml 83.00 83.00 登錄可見
T27863-25ml 四氫呋喃 [109-99-9] 無水級(jí),99.9% 25ml 83.00
  •  訂貨編號(hào)
  •  商品名稱
  •  規(guī)格
  •  包裝
  •  單價(jià)
  •  促銷價(jià)
  •  會(huì)員價(jià)
  •  數(shù)量

化學(xué)性質(zhì)

無色液體。有醚樣氣味。能與水、醇類、醚類、酮類、酯類和烴類混溶。易燃。有刺激性。 密度:0.8892 熔點(diǎn):-108.5℃ 沸點(diǎn):66℃ 折光率:1.4070 閃點(diǎn):-17℃ 在貯存中易形成過氧化物,可加0.0025%-0.025%2,6-二叔丁基對(duì)甲酚(BHT)作穩(wěn)定劑或不加穩(wěn)定劑,均在標(biāo)簽上加以說明。

質(zhì)量標(biāo)準(zhǔn)

  

 項(xiàng)目                                    分析純     
                                         (AR) 
外觀Appearance                          無色液體
純度Purity                              ≥99.0% (GC) 
比重Specific gravity (20/20°C)         10.8860~0.8890     
折光率Refractive index n20/D            1.4060~1.4080       
蒸發(fā)殘?jiān)麰vaporation residue             ≤ 0.005%                         
水分(H2O)Water                           ≤0.10%   
 
 
 
項(xiàng)目                                    色譜純     
                                        (HPLC) 
外觀Appearance                          透明液體
紅外光譜鑒別Infrared spectrometry       和對(duì)照品匹配 
純度Purity                              ≥99.9% (GC) 
紫外吸光度UV Absorbance: 
吸收波長Wavelength (nm) Max. Absorbance 
250                                     0.180 
300                                     0.020 
350                                     0.005 
400                                     0.005 
過氧化物Peroxides at Time of Packaging  <2 mg/L (as H2O2) 
折光率Refractive Index at 20°C         1.4070 ± 0.0005 
殘?jiān)黂esidue                             <1 mg/L 
UV截至UV Cutoff                         212 nm 
水分Water                               <0.03% 
 
備注:色譜純用于HPLC, GC, 和光譜分析.充氮封存
 
 
 
項(xiàng)目                                    ACS級(jí)     
                                        (ACS) 
外觀Appearance                          透明液體
紅外光譜鑒別Infrared spectrometry       和對(duì)照品匹配 
純度Purity                              >99.5% (GC)  
色度Color scale                         <10 APHA 
水分Water                               <0.03 % (Coulometric) 
酸度/堿度Acidity/alkalinity             <0.0002 mg/g (相當(dāng)于0.0012% HOAc) 
灼燒殘?jiān)黂es. after ignition             <0.002 % 
鈣Ca                                    < 0.5 ppm 
銅Cu                                    < 0.05 ppm 
鉛Pb                                    < 0.05 ppm 
鐵Fe                                    < 0.5 ppm 
過氧化物Peroxides                       <0.005 % 
穩(wěn)定劑Stabilizer                        75 - 400 ppm BHT 
 
 
 
項(xiàng)目                                    優(yōu)級(jí)純     
                                        (GR) 
外觀Appearance                          透明液體
紅外光譜鑒別Infrared spectrometry       和對(duì)照品匹配 
純度Purity                              ≥99.9% (GC) 
折光率Refractive index n20/D            1.4060 - 1.4080  
色度Color scale                         5APHA-10APHA
水分Water                               <0.03 % (Coulometric) 
過氧化物Peroxides                       0-2PPM(以 H2O2計(jì)) 
穩(wěn)定劑Stabilizer                        0.025 - 0.04 % BHT 
 
 
品級(jí)                                     超純無水級(jí)
                                     (extra pure, anhydrous)
外觀Appearance                           無色液體
紅外光譜鑒別Infrared spectrometry        符合 
純度Purity                               ≥99.9% (GC) 
折光率Refractive index n20/D             1.4060 - 1.4080
色度Color scale                          <10 APHA 
水分Water                                <0.002 % (KF) 
過氧化物Peroxides                        <0.003 % (as H2O2) 
穩(wěn)定劑Stabilizer                         250 ppmBHT 
 
 
項(xiàng)目                                    光譜級(jí)     
                               (spectrophotometric grade) 
外觀Appearance                          透明液體
紅外光譜鑒別Infrared spectrometry       和對(duì)照品匹配 
純度Purity                              ≥99.5% (GC) 
吸收波長Wavelength (nm) Max. Absorbance 
UV Absorbance 400nm                     ≤0.005 
UV Absorbance 350nm                     ≤0.005 
UV Absorbance 300nm                     ≤0.02 
UV Absorbance 250nm                      ≤0.18 
UV Absorbance 212nm                      ≤1.0 
過氧化物Peroxides at Time of Packaging  ≤0.015 % as H2O2 
折光率Refractive Index at 20°C         1.4070 ± 0.0005 
UV截至UV Cutoff                         212 nm 
水分Water                               <0.02 % 
蒸發(fā)殘?jiān)黂esidue on Evaporation          ≤0.0005 % 

  

危險(xiǎn)性質(zhì)

危險(xiǎn)品標(biāo)志  Xi,F
危險(xiǎn)類別碼  36/37/38-36/37-19-11
安全說明  26-36-33-29-16
海關(guān)編碼  29321100
WGK Germany  
RTECS  MD091600
F  3-10-23
HazardClass  3
PackingGroup  II

  

用途及存儲(chǔ)

氨基酸和肽的紙層析。溶劑。有機(jī)合成。高效液相色譜,紫外發(fā)光光度分析。

  密封干燥保存。