商品名：二氯甲烷

别 名：二氯甲烷氯化亚甲基 Dichloromethane ,Methylene dichloride ,
Methylene bichloride
甲叉二氯;甲撑氯;氯化次甲基;亚甲基二氯;亚甲基氯;二氯甲烷;二氯亚甲基;氯化亚甲基

英文名：Dichloromethane

产 地：湖南

Cas号：75-09-2

分子结构：

分子式：CH2Cl2

分子量：84.9300

备注：密闭包装，远离火种、热源，并贮于干燥通风处。与食用化学品、金属粉末等分储。误食，饮温水，催吐。灭火：雾状水、泡沫、二氧化碳、砂土

性状：无色液体。有醚样气味。易挥发。其气体不燃烧，与空气混合也不爆炸。能与乙醇、乙醚和N,N二甲基甲酰胺混溶，溶于约50份水中。相对密度(d204)1.3255。凝固点-95℃。沸点 39.75℃。折光率(n20D)1.4244。低毒，半数致死量(大鼠，经口)2524mg/kg。高浓度蒸气有麻醉性。有刺激性。

质量标准:GB/T　16983-1997
项目Item　　                                   分析纯　化学纯
                                               （AR）  （CP）
含量（CH₂Cl₂）Assay,%                        ≥ 99.5   99.0
色度，黑曾单位Color                          ≤ 10     20
密度(20℃)Density,g/mL                    1.320-1.330  1.320-1.330
蒸发残渣Evaporation residue,%                ≤ 0.002  0.004
酸度（以H⁺计）Acidity,mmol/100mg             ≤ 0.002  0.004
游离氯（Cl)Free chlorine,%                   ≤ 0.0001 0.0002
铁(Fe)Iron,%                                 ≤ 0.0001 0.0002
水分（H₂O）Water,%                           ≤ 0.05   0.10


品级Grade                               ACS级  
                                    (ACS reagent, ≥99.5%)
外观Appearance                          Colorless liquid
红外光谱鉴别Infrared spectrometry       Conforms
含量(CH₂Cl₂)Assay  ≥99.5%
色度，黑曾单位COLOR TEST                 ≤10 APHA
蒸发残渣Residue after evaporation       ≤0.002%
可滴定酸Titrable acid                   ≤0.0003meq/g
游离卤素Free halogens                   Passes test
水分Water                               ≤0.02%
稳定剂stabilizer                        50ppm amylene


品级Grade                               ACS级  
                      (ACS reagent, ≥99.8% (GC), ≤0.001% water)
含量assay                              ≥99.8% (GC)
游离氯free chlorine (Cl)               ≤0.00002%  
甲醛formaldehyde                       ≤0.0005%  
非蒸发物non volatile matter            ≤0.0005%
游离酸free acid (as HCl)               ≤0.001%
水分water                              ≤0.001%  (Karl Fischer)
氯仿chloroform                         ≤0.01%  (GC)
四氯化碳tetrachloromethane             ≤0.01%  (GC)
氯chloride (Cl-):                      ≤0.5 ppm
cation traces by ICP Atomic emission
  Al:                                  ≤0.5 ppm
  B:                                   ≤0.02 ppm
  Ba:                                  ≤1 ppm
  Ca:                                  ≤0.5 ppm
  Cd:                                  ≤0.05 ppm
  Co:                                  ≤0.02 ppm
  Cr:                                  ≤0.02 ppm
  Cu:                                  ≤0.02 ppm
  Fe:                                  ≤0.1 ppm
  Mg:                                  ≤0.1 ppm
  Mn:                                  ≤0.02 ppm
  Ni:                                  ≤0.02 ppm
  Pb:                                  ≤0.1 ppm
  Sn:                                  ≤0.1 ppm
  Zn:                                  ≤0.1 ppm
suitability complies for reaction against H2SO4
稳定剂stabilizer                      ~25 mg/L amylene


品级Grade                                      色谱纯  
                                          (for HPLC, ≥99.9%)
含量                                          ≥99.9%（GC）
色度                                          ≤10Hazen
外观                                          Colorless liquid
λ H2O reference
UV absorption
  λ: 235 nm                                   ≤1.0
  λ: 240 nm                                   ≤0.10
  λ: 250 nm                                   ≤0.02
  λ: 300 nm                                   ≤0.005
  λ: 400 nm                                   ≤0.005
游离酸(HCI)                                   ≤0.001%
游离氯                                         合格
不挥发物                                      ≤0.001%
水分                                          ≤0.02%
稳定剂stabilizer                             50-150 ppm amylene


品级Grade                                      农残级                    
                                          (for residue analysis , ≥99.9%)
纯度Purity                                    ≥99.9%（GC）
七氯环氧化物Heptachlor epoxide                ≤10 ng/L
色度                                          ≤10Hazen
外观                                          Colorless liquid
蒸发残渣Residue after evaporation             ≤0.0001%
不挥发物                                      ≤0.001%
水分                                          ≤0.01%（KF)
稳定剂stabilizer                              50-150 ppm amylene


品级Grade                               多肽合成级  
                                   (grade for peptide synthesis)
含量assay                                ≥99.9% (GC)
水分water                                ≤0.01%
多肽合成之胺试验amine test               Pass


品级Grade                               气相色谱级  
                                 (for gas chromatography，≥99.8%)
纯度Purity (GC)                         ≥ 99.8 %
红外光谱鉴别Identity (IR)               conforms
蒸发残渣residue on evaporation          ≤ 5.0 mg/l
水分Water                               ≤ 0.01 %
色度Colour                              ≤ 10 Hazen
GC/ECD (retention range 1,2,4-trichlorobenzene to decachlorobiphenyle individual signals (lindane standard))  ≤ 3 pg/ml
suitable for residue analysis           Pass


品级Grade                               光谱级  
                                (for spectroscopy, ≥99.9% (GC))
纯度Purity (GC)                        ≥ 99.9 %
色度Color                              ≤ 10 Hazen
酸度Acidity                            ≤ 0.0005 meq/g
碱度Alkalinity                         ≤ 0.0002 meq/g
Fluorescence
as quinine at 254 nm                 ≤ 1 ppb
as quinine at 365 nm                 ≤ 1 ppb
透光度Transmission
at 235 nm                            ≥ 10 %
at 240 nm                            ≥ 50 %
at 245 nm                            ≥ 80 %
at 248 nm                            ≥ 90 %
from 255 nm                          ≥ 98 %
Evaporation residue                   ≤ 0.0005 %
Water                                 ≤ 0.01 %
稳定剂stabilizer                      50ppm 2-Methyl-2-butene


品级Grade                              超干级
                               dried (max. 0.004% H2O)  
Purity (GC)                           ≥ 99.9 %
Identity (IR)                         conforms
Colour                                ≤ 10 Hazen
Acidity                               ≤ 0.0005 meq/g
Alkalinity                            ≤ 0.0002 meq/g
Chloroform (GC)                       ≤ 0.01 %
Carbon tetrachloride (GC)             ≤ 0.01 %
residue on evaporation                ≤ 10 mg/l
Water                                 ≤ 0.004 %
stabilizer                           50ppm 2-Methyl-2-butene

存储：密封阴凉避光保存

用途：乙酸纤维素溶剂。脂肪和油类萃取剂。乙醚和石油醚的代用品。

联合编码：

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