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天津市辰光化工有限公司  

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首页 > 供应产品 > 甲醇
甲醇
单价 2380.00 / 吨对比
询价 暂无
发货 天津付款后48小时内
品牌 甲醇
型号 99.5%
规格 160kg/桶
过期 长期有效
更新 2012-04-12 09:43
 
详细信息
甲醇
Methanol
Cas     67-56-1 MDL:     --MFCD00004595
Beilstein 1098229 EINECS:        --200-659-6
分子式    CH4OCH3OH
分子量    32.04
别名       木醇,木精
Wood alcohol
分子结构式   
性状       微有乙醇样气味,易挥发,易流动,燃烧时无烟有蓝色火焰,能与水、醇、醚等有机溶剂互溶,能与多种化合物形成共沸混合物,能与多种化合物形成溶剂混溶,溶解性能优于乙醇,能溶解多种无机盐类,如碘化钠、氯化钙、硝酸铵、硫酸铜、硝酸银、氯化铵和氯化钠等。蒸气能与空气形成爆炸极限6.0%-36.5%(体积)。有毒。
密度:0.7915
熔点:-97.8
沸点:64.7
闪点:12
折光率n20/D1.3292
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      
      项目Item                       分析纯   化学纯       优级纯
                                          (AR)         (CP)         (GR)
含量(CH3OH)Assay,%                    99.5        99.5        99.5
密度(20)Density,g/ml              0.791-0.793    0.791-0.795   0.791-0.793g 
水溶性试验Solubility in water            合格          合格         合格
蒸发残渣Evaporation residue,%            0.001       0.001
水分(H2O)Water,%                         0.1         0.3          0.05
酸度(H+)Acidity,mmol/100g            0.04        0.08         0.002
碱度(OH-)Alkalinity,mmol/100g      0.08        0.016        0.0001
易碳化物质Readily carbonizable
substance                          合格    合格          合格
羰基化合物(CO)Carbonly compounds,%   0.005       0.01         0.005
还原高锰酸钾物质Potassium                 合格         合格          合格
perman-ganate reducing s-
ubstances
 
无水甲醇:
品级Grade                                       分析纯,无水级
                                                 (ARanhydrous)
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(H+)Acidity,m mol/100g                0.04
碱度(OH-)Alkalinity,m mol/100g            0.01
醛与酮(CH3COCH3)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  
                                  (for LC-MS,99.9%)
外观Appearance                          Clear Colorless Liquid
荧光Fluorescence 254nmas Quinine    1 ppb
荧光Fluorescence 365nmas 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
 
品级Grade                               梯度级  
                                 (gradient grade, for HPLC, 99.9% )
外观Appearance                          Colorless liquid
纯度Purity (GC)                         99.90 %
水分Water (by Karl Fischer)             0.02 %
蒸发残渣Residue on Evaporation          0.0005 %
碱度Alkalinity                          0.0005 %As NH3
紫外吸收UV Absorbance 260nm             0.01
紫外吸收UV Absorbance 235nm             0.10
紫外吸收UV Absorbance 220nm             0.30
紫外吸收UV Absorbance 210nm             0.50
HPLC吸收HPLC Absorbance 230 nm          2 mAU
HPLC吸收HPLC Absorbance 254 nm          5 mAU
荧光Fluorescence 254nm                  1.0 ppb(As Quinine
 
品级Grade                                 ACS  
                                      (ACS, 99.8% )
外观Appearance                          Colorless liquid
红外光谱Infrared spectrum               Conforms to Structure
色度Color Test                          10 APHA
纯度Purity (GC)                         99.80 %
水分Water (by Karl Fischer)             0.1 %
蒸发残渣Residue on Evaporation          0.001 %
溶解试验Solubility                      Pass
羰基化合物Carbonyl                      Pass
硫酸黑化物质Substance darkened by H2SO4 Pass
MnO4还原物质Substances reducing MnO4    Pass
可滴定酸Titratable acid                 0.0003 meq
可滴定碱Titratable base                 0.0002 meq
 
品级Grade                             HPLC, 用于制备  
                                     (for HPLC,99.5% )
外观Appearance                          Colorless liquid
红外光谱Infrared spectrum               Conforms to Structure
紫外吸光度UV Absorbance
400nm                                   0.005
250nm                                   0.02
230nm                                   0.10
220nm                                   0.20
210nm                                   0.80
205nm                                   1.0
荧光Fluorescense
365nm                                   1.0 ppb as Quinine
254nm                                   1.0 ppb as Quinine
HPLC吸光度HPLC Absorbance
230nm                                   2mAU
254 nm                                  5mAU       
纯度Purity (GC)                         99.90 %
水分Water (by Karl Fischer)             0.05 %
蒸发残渣Residue on Evaporation          0.0001 %
色度Color Test                          10 APHA
可滴定酸Titratable Acid                 0.0003
贮存       密封阴凉处保存。
用途       分离硫酸钙和硫酸镁, 与异丁醇混合分离锶和钡的溴化物。检验和测定硼, 溶剂, 有机合成的甲基化剂, 防冻剂, 萃取剂, 清洗剂, 稀释剂, 脱水剂, 浸出剂。
联合国编号    1230
Risk    R11- R23/24/25- R39/23/24/25-
Safety :  S16 - S36/37 - S45 - S7 -
Hazard : F - T - 
甲醇             规格:99.5% 产地:新西兰     包装:160kg/桶 价格:2380元/吨