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首页 > 供应产品 > 德国 乙酸乙酯
德国 乙酸乙酯
品牌: 乙酸乙酯
型号: 141-78-6
规格: 99.0%
单价: 6100.00元/吨
最小起订量:
供货总量: 40 吨
发货期限: 自买家付款之日起 3 天内发货
有效期至: 长期有效
最后更新: 2013-10-22 16:48
 
详细信息
乙酸乙酯规格:99.0% 产地:德国    包装:200kg/桶    价格:6100元/吨  
乙酸乙酯
Ethylacetate
Cas: 141-78-6      
分子式 C4H8O2; CH3COOC2H5
分子量 88.11
别名    醋酸乙酯,乙酸乙脂
Acetic Acid Ethyl Ester
性状    无色透明液, 有水果香,易挥发, 对空气敏感, 能吸水分,水分能使其缓慢分解而呈酸性反应。能与氯仿、醇、酮和醚混溶,溶于水(10%ml/ml)。能溶解某些金属盐类(如氯化锂、氯化钴、氯化锌、氯化铁等。
密度:0.902
熔点:-83℃
沸点:77℃
折光率n20/D :1.3719
闪点:-3 °C
备注:  以上描述,仅作参考,并不表示您收到的产品,与此项描述完全相符,产品的出厂标准,请参见质量标准。
质量标准   
    GB/T 12589-90
项目Item                                  分析纯      化学纯
                                           (AR)        (CP)
含量(C4H8O2)Assay,%                        99.0        97.0
密度(20℃)Density,g/mL                 0.899-0.901 0.897-0.901
色度Color,黑曾单位                      ≤ 10          20
蒸发残渣Evaporation residue,%            ≤ 0.0005     0.001
水份(H2O)Water,%                         ≤ 0.1         0.4
酸度(以H+计)Acidity,mmol/100g            ≤ 0.08       0.08
甲醇(以CH3OH计)Methanol,%                ≤ 0.1         0.2
乙醇(CH3CH2OH)Ethanol,%                  ≤ 0.2         0.5
乙酸甲酯(CH3COOCH3)Methyl formate,%      ≤ 0.1         0.3
易炭化物质Readily carbonizable substances   合格        合格
品级Grade                                 优级纯   (GR)
外观Appearance                           无色液体
红外光谱鉴别Infrared spectrometry        符合
纯度Purity                               ≥99.5% (GC)
水分Water                                <0.05 %
蒸发残渣Residue after evaporation        <0.001 %
亚***变暗物Subst. darkened by H2SO4     <10 APHA
甲醇Methanol                             <0.1 %
乙醇Ethanol                              <0.1
乙酸甲酯Methyl acetate                   <0.1 %
   
ACS级
项目名称                                        ACS Grade
含量Assay(CH3COOCH2CH3)                        ≥99.5%
色度Color(APHA)                                  10
灼烧残渣Residue after ignition                 ≤0.003%
水分(H2O)Water                               ≤0.2%
可滴定酸Titrable acid                          ≤0.0009meq/g
***变黑物substances darkened by sulfuric acid   Passes test
品级Grade                                   色谱纯  
                                          (for HPLC, 99.8%)
外观Appearance                              无色液体
红外光谱鉴别Infrared spectrometry           符合
纯度Purity                                  ≥99.8% (GC) 
水分water                                   <0.050% (by Karl Fischer)
蒸发残渣Residue on Evaporation              <0.0003%
λ H2O reference
UV absorption
 λ: 254 nm A:                              ≤1.00
 λ: 263 nm A:                              ≤0.05
 λ: 275 nm A:                              ≤0.01
 λ: 400 nm A:                              ≤0.05  
项目                                      光谱纯    
                                     (for spectroscopy)
外观Appearance                           无色液体
色度Color scale                          <10 APHA
纯度Purity                               ≥99.0% (GC)
水分Water                                <0.05 %
紫外吸收值UV:
 255 nm A:                               <1
 275 nm A:                               <0.05
 300 nm A:                               <0.03
 325 nm A:                               <0.01
蒸发残渣Residue on Evaporation            <0.0003 %
品级Grade                               蛋白测序级  
                                (for protein sequence analysis)
外观Appearance                          无色液体
红外光谱鉴别Infrared spectrometry       Conforms
纯度Purity                              ≥99.5% (GC) 
水分water                               ≤0.1% 
测序分析实验sequence analysis test      Pass
项目                                      农残级    
                                     (for spectroscopy)
外观Appearance                           无色液体
色度Color scale                          <10 APHA
纯度Purity                               ≥99.5% (GC)
水分Water                                <0.03 %
蒸发残渣Residue on Evaporation           <0.0001 %
halogenated residue (GC/ECD)             <10 ng/L (as heptachlor epoxide)
品级Grade                               LC-MS  
                              (for LC-MS, 99.9% (GC))
含量assay                               ≥99.9% (GC)
游离碱free alkali (as NH3)              ≤0.0005%
非挥发物non-volatile matter             ≤0.0005%
水分water                               ≤0.03% (Karl Fischer)
透光度transmittance
 260 nm,                               50%
 300 nm,                               98%
Ca:                                     0.1 ppm
K:                                      0.1 ppm
Mg:                                     0.1 ppm
Na:                                     0.1 ppm
Test for suitability for LC-MS          passes
品级Grade                               生物工程级
                                    (biotech. grade, 99.9%)
外观Appearance                          Colorless Liquid
红外光谱鉴别Infrared spectrometry       Conforms
纯度Purity                              ≥99.9% (GC)
可滴定酸Titratable acid                 ≤0.0009 meq
水分Water                               ≤0.01 % (by Karl Fischer)
蒸发残渣Residue on Evaporation          ≤0.0003 %
λ H2O reference
UV absorption
 λ: 254 nm A:                          ≤1.00
 λ: 263 nm A:                          ≤0.05
 λ: 275 nm A:                          ≤0.01
 λ: 400 nm A:                          ≤0.01
贮存   
- R67-
Safety :    S16- S26- S33-
Hazard :    F - Xi -
 
 
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