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首頁 > 供應產品 > NN-二甲基乙酰胺
NN-二甲基乙酰胺
單價 面議對比
詢價 暫無
發貨 江蘇揚州市付款后3天內
過期 長期有效
更新 2013-04-13 14:00
 
詳細信息

NN-二甲基乙酰胺 99.9%   韓國三星 190kg/桶 6800元/噸

N,N-二甲基乙酰胺
N-N-Dimethylacetamide
 
Cas號
【127-19-5】
MDL:
--MFCD00008686
Beilstein
1737614
EINECS:
--204-826-4
分子式
C4H9NO; CH3CON(CH3)2
分子量
87.12
別名
乙酰二甲胺,二甲替乙酰胺,二甲基乙酰胺
Acetic acid dimethylacetamide
NBS
DMA
分子結構式
 
性狀
無色或近似無色澄明液體, 溶于水,溶于丙酮、苯、氯仿、乙醇、甲苯等大多數有機溶劑。
密度:0.937  
熔點:-20 °C
沸點:164-166 °C  
折光率nD20:1.437-1.439  
閃點:70 °C  
   
質量標準
 
 
項目Item                                    分析純          
                                             (AR)            
純度Purity                                ≥99.0% (GC)
比重Specific gravity (20/20°C)           0.9385-0.9420  
沸程Boiling range,℃                      165-167(95%)  
游離酸(以CH3COOH計)Free acid,%              ≤0.001        
折光率Refractive index n20/D              1.437-1.439    
灼燒殘渣Ignition residue,%                   ≤0.005          
水份Water,%                                  ≤0.05            
混合度Miscibility                            合格



項目                                       優級純  
                                            (GR)
外觀Appearance                            清澈、無懸浮物
純度Purity                                ≥99.9% (GC)
色度Color scale,Hazen單位                ≤10(鉑-鈷色號)
水water                                   ≤250 ppm
鐵Iron(Fe)                                ≤0.050ppm  
酸度Acidity(乙酸計)                     ≤100.0ppm  
堿度alkalinity(二甲胺計)                ≤5.0ppm
電導率conductivity(25℃)                ≤0.50 us/cm
            


項目                                       化學純  
                                            (CP)
純度Purity                                 ≥98.0% (GC)
沸程Boiling range,℃                       164.0~167.0
比重Specific gravity (20/20°C)            0.938~0.942  
折光率Refractive index n20/D               1.437~1.439      
酸度Acidity(以H+計)/(mmol/100g)          ≤0.002  
水分water                                  ≤0.10%  



項目                                              色譜純
                                                  (HPLC)
純度Purity                                      ≥99.8% (GC)
紫外吸光度UV Absorbance:
最大吸收波長Wavelength (nm) Max. Absorbance
268                                                1.000
275                                                0.300
300                                                0.080
350                                                0.005
400                                                0.005
溶劑洗脫雜質GC Impurities Eluting Before Solvent  
<0.5 mg/L >水分Water                                          <0.03%
(色譜純用于HPLC, GC和光譜級,氮氣封裝。)
貯存
密封保存。
用途
用于藥物合成的反應溶劑,合成纖維紡絲與合成樹脂的溶劑,感光化學品發色劑的溶劑,涂料等的溶劑。催化劑。
聯合國編號
 
Risk:
R61- R20/21-
Safety :
S53- S45-
Hazard :
T -
 
 
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