甲醇，67-56-1，Methanol

甲醇

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无水甲醇：

品级Grade                                       分析纯，无水级
                                                 （AR，anhydrous）
含量（CH3OH）Assay,%                            ≥ 99.5
沸点Boiling point,℃                            64-65
与水混合试验Miscibility with water               合格
蒸发残渣Evaporation residue,%                 ≤ 0.05
水份（H2O）Water,%                              ≤ 0.04
酸度（以H+计）Acidity,m mol/100g                ≤ 0.04
碱度（以OH-计）Alkalinity,m mol/100g            ≤ 0.01
醛与酮（以CH3COCH3计）Aldehdes and kelones,%    ≤ 0.003                
还原高锰酸钾物质Potassium permanganate
reducing substances 　　　　　　  　             合格
易炭化物质Readily carbonizable substances        合格
（用于滴定）

项目                                     色谱纯    
                                     （ for HPLC, ≥99.9%）
外观Appearance                           Colorless  Liquid
红外光谱鉴别Infrared spectrometry        Conforms
纯度Purity （GC）                          ≥99.90 %
水分Water                                ≤0.05 % （by Karl Fischer）
蒸发残渣Residue on Evaporation           ≤0.0001 %
色度Color Test                           ≤10 APHA
碳化合物Carbonyl Compounds               ≤0.001% （each of Acetone, Formaldehyde, and Acetaldehyde）
可滴定酸Titratable acid                  ≤0.0003 meq
可滴定碱Titratable base                  ≤0.0002 meq
λ H2O reference
UV absorption
  λ: 205 nm A:                           ≤1.0
  λ: 210 nm A:                           ≤0.80
  λ: 220 nm A:                           ≤0.20
  λ: 230 nm A:                           ≤0.10
  λ: 250 nm A:                           ≤0.02
  λ: 400 nm A:                           ≤0.005

项目                                     农残级    
                                （for residue analysis, ≥99.9%）
外观Appearance                          无色液体
纯度Purity                              ≥99.9% （GC）
色度Color scale                         <10 APHA
水分Water                               <0.05% （K.F）
酸度Acidity （CH3COOH）                   <0.003 %
蒸发残渣Residue after evaporation       <0.0001 %
halogenated residue （GC/ECD）            <10 ng/L （as heptachlor epoxide）

Grade                               ACS级光谱级  
                                  （ACS spectrophotometric grade）
含量assay                               ≥99.9%
还原高锰酸盐物质MnO4- reducers,         passes test
可滴定酸Titrable acid                   ≤0.0002 meq/g
可滴定碱Titrable base                   ≤0.0003 meq/g
乙醛acetaldehyde                        ≤0.001%  
丙酮acetone                             ≤0.001%
甲醛formaldehyde                        ≤0.001%
水分water                               ≤0.1%  
蒸发残渣Residue after evaporation       ≤0.001%
色度color                               ≤10（APHA）
λ H2O reference
紫外吸收UV absorption
  λ: 205 nm A:                          ≤1.00
  λ: 210 nm A:                          ≤0.80
  λ: 220 nm A:                          ≤0.40
  λ: 230 nm A:                          ≤0.20
  λ: 240 nm A:                          ≤0.10
  λ: 260 nm A:                          ≤0.04
  λ: 280 nm A:                          ≤0.01
  λ: 400 nm A:                          ≤0.01

品级Grade                               LC-MS级  
                                  （for LC-MS,≥99.9%）
外观Appearance                          Clear Colorless Liquid
荧光Fluorescence 254nm（as Quinine）    ≤1 ppb
荧光Fluorescence 365nm（as Quinine）    ≤1 ppb
Test for suitability for LC-MS           Passes
HPLC Absorbance 254 nm                  ≤0.005 Abs UN
纯度Purity （GC）                         ≥99.90 %
水分Water                               ≤0.02 % （by Karl Fischer）
蒸发残渣Residue on Evaporation          ≤0.0005 %
碱度Alkalinity （as NH3）                 ≤0.0005 %
游离酸Free Acid （as Formic Acid）      ≤0.001 %
Aluminum （Al）                           ≤0.5 ppm
Barium （Ba）                             ≤0.1 ppm
Cadmium （Cd）                            ≤0.50 ppm
Calcium （Ca）                            ≤0.1 ppm
Chromium （Cr）                           ≤0.02 ppm
Cobalt （Co）                             ≤0.02 ppm
Copper （Cu）                             ≤0.01 ppm
Iron （Fe）                               ≤0.1 ppm
Lead （Pb）                               ≤0.02 ppm
Magnesium （Mg）                          ≤0.1 ppm
Manganese （Mn）                          ≤0.01 ppm
Nickel （Ni）                             ≤0.02 ppm
Potassium （K）                            ≤0.1 ppm
Silver （Ag）                             ≤0.1 ppm
Sodium （Na）                             ≤0.1 ppm
Tin （Sn）                                ≤0.1 ppm
Zinc （Zn）                               ≤0.1 ppm

品级Grade                          用于自动多次展开（AMD）技术  
                                      （grade AMD, ≥99.9%）
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                               ≤0.02%  （Karl Fischer）
荧光fluorescence （quinine） at 254 nm    ≤1 ppb  
荧光fluorescence （quinine） at 365 nm    ≤1 ppb
透光度transmittance
  210 nm,                               ≥30%
  220 nm,                               ≥50%
  235 nm,                               ≥80%
  260 nm,                               ≥98%
abs. HPLC-gradient/230 nm               ≤2 mAU
test for AMD technique                  passes

品级Grade                             无丙酮级，用于Romanowsky甲醇染色法  
                                      （Acetone free）
外观Appearance                         Clear Colorless Liquid
颗粒/沉淀物particles/precipitate       free  
（备注：适合作为固定剂和制备各种Romanowsky型染色液）

品级Grade                               蛋白测序级  
                                 （for protein sequencing，≥99.9 % ）
外观Appearance                          Clear Colorless Liquid  
纯度Purity                              ≥99.9 %（GC）
蛋白测序测试Test for protein sequencing passes