• 二氯甲烷 [75-09-2]

  • 英文名:Dichloromethane
  • 别名:甲叉二氯 甲撑氯 氯化次甲基 亚甲基二氯 亚甲基氯
  • CAS号:75-09-2 分子式:CH2CL2 分子量:84.93
T106038-500ml 二氯甲烷 [75-09-2] 99.5% 500ml 76.00 促销价:53.20
T106030-500ml 二氯甲烷 [75-09-2] AR 500ml 58.00 促销价:36.54
T106031-5ml 二氯甲烷 [75-09-2] for GC,≥99.8% 500ml 128.00 促销价:93.44
T106034-500ml 二氯甲烷 [75-09-2] for GC,≥99.8% 2.5L 442.00 促销价:322.66
T106035-500ml 二氯甲烷 [75-09-2] HPLC级,≥99.9% 500ml 171.00 促销价:124.83
T106037-500ml 二氯甲烷 [75-09-2] HPLC级,≥99.9% 4L 514.00 促销价:375.22
T106039-2ml 二氯甲烷 [75-09-2] HPLC级,≥99.9% 4X4L 1571.00 促销价:1146.83
T106036-500ml 二氯甲烷 [75-09-2] 二氯甲烷, 99.9%,stabilized with Amylene, Water≤50 ppm (by K.F.) 500ml 250.00 促销价:157.50
T106033-500ml 二氯甲烷 [75-09-2] 二氯甲烷, 99.9%,stabilized with Amylene, Water≤50 ppm (by K.F.) 100ml 146.00 促销价:91.98
T106031-100ml 二氯甲烷 [75-09-2] 二氯甲烷, 99.9%,stabilized with Amylene, Water≤50 ppm (by K.F.) 1L 446.00 促销价:280.98
T106037-5ml 二氯甲烷 [75-09-2] 二氯甲烷, 99.9%,with molecular sieves, Water≤50 ppm (by K.F.) 500ml 233.00 促销价:146.79
T106035-100ml 二氯甲烷 [75-09-2] 二氯甲烷, 99.9%,with molecular sieves, Water≤50 ppm (by K.F.) 100ml 133.00 促销价:83.79
订货编号 商品名称 规格 包装 单价 促销价 会员价 数量
T106038-500ml 二氯甲烷 [75-09-2] 99.5% 500ml 76.00 53.20 登录可见
T106038-500ml 二氯甲烷 [75-09-2] 99.5% 500ml 76.00 促销价:53.20
T106030-500ml 二氯甲烷 [75-09-2] AR 500ml 58.00 36.54 登录可见
T106030-500ml 二氯甲烷 [75-09-2] AR 500ml 58.00 促销价:36.54
T106031-5ml 二氯甲烷 [75-09-2] for GC,≥99.8% 500ml 128.00 93.44 登录可见
T106031-5ml 二氯甲烷 [75-09-2] for GC,≥99.8% 500ml 128.00 促销价:93.44
T106034-500ml 二氯甲烷 [75-09-2] for GC,≥99.8% 2.5L 442.00 322.66 登录可见
T106034-500ml 二氯甲烷 [75-09-2] for GC,≥99.8% 2.5L 442.00 促销价:322.66
T106035-500ml 二氯甲烷 [75-09-2] HPLC级,≥99.9% 500ml 171.00 124.83 登录可见
T106035-500ml 二氯甲烷 [75-09-2] HPLC级,≥99.9% 500ml 171.00 促销价:124.83
T106037-500ml 二氯甲烷 [75-09-2] HPLC级,≥99.9% 4L 514.00 375.22 登录可见
T106037-500ml 二氯甲烷 [75-09-2] HPLC级,≥99.9% 4L 514.00 促销价:375.22
T106039-2ml 二氯甲烷 [75-09-2] HPLC级,≥99.9% 4X4L 1571.00 1146.83 登录可见
T106039-2ml 二氯甲烷 [75-09-2] HPLC级,≥99.9% 4X4L 1571.00 促销价:1146.83
T106036-500ml 二氯甲烷 [75-09-2] 二氯甲烷, 99.9%,stabilized with Amylene, Water≤50 ppm (by K.F.) 500ml 250.00 157.50 登录可见
T106036-500ml 二氯甲烷 [75-09-2] 二氯甲烷, 99.9%,stabilized with Amylene, Water≤50 ppm (by K.F.) 500ml 250.00 促销价:157.50
T106033-500ml 二氯甲烷 [75-09-2] 二氯甲烷, 99.9%,stabilized with Amylene, Water≤50 ppm (by K.F.) 100ml 146.00 91.98 登录可见
T106033-500ml 二氯甲烷 [75-09-2] 二氯甲烷, 99.9%,stabilized with Amylene, Water≤50 ppm (by K.F.) 100ml 146.00 促销价:91.98
T106031-100ml 二氯甲烷 [75-09-2] 二氯甲烷, 99.9%,stabilized with Amylene, Water≤50 ppm (by K.F.) 1L 446.00 280.98 登录可见
T106031-100ml 二氯甲烷 [75-09-2] 二氯甲烷, 99.9%,stabilized with Amylene, Water≤50 ppm (by K.F.) 1L 446.00 促销价:280.98
T106037-5ml 二氯甲烷 [75-09-2] 二氯甲烷, 99.9%,with molecular sieves, Water≤50 ppm (by K.F.) 500ml 233.00 146.79 登录可见
T106037-5ml 二氯甲烷 [75-09-2] 二氯甲烷, 99.9%,with molecular sieves, Water≤50 ppm (by K.F.) 500ml 233.00 促销价:146.79
T106035-100ml 二氯甲烷 [75-09-2] 二氯甲烷, 99.9%,with molecular sieves, Water≤50 ppm (by K.F.) 100ml 133.00 83.79 登录可见
T106035-100ml 二氯甲烷 [75-09-2] 二氯甲烷, 99.9%,with molecular sieves, Water≤50 ppm (by K.F.) 100ml 133.00 促销价:83.79
  •  订货编号
  •  商品名称
  •  规格
  •  包装
  •  单价
  •  促销价
  •  会员价
  •  数量

化学性质

无色透明易挥发液体。具有类似醚的刺激性气味。 溶于约50倍的水,溶于酚、醛、酮、冰醋酸、磷酸三乙酯、乙酰乙酸乙酯、环己胺。与其他氯代烃溶剂乙醇、乙醚和N,N-二甲基甲酰胺混溶。 熔点 -97 °C 沸点 39.8-40 °C mm Hg(lit.) 密度 1.325 g/mL at 25 °C(lit.) 蒸气密度 2.9 (vs air) 蒸气压 24.45 psi ( 55 °C) 折射率 n20/D 1.424(lit.) 闪点 39-40°C

质量标准

  

GB/T 16983-1997

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


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

  

危险性质

类别 农药
毒性分级 中毒
危险品标志  Xn,T,F
危险类别码  40-39/23/24/25-23/24/25-11
安全说明  23-24/25-36/37-45-16-7 
WGK Germany  2
RTECS号 PA8050000
F  3-10
Hazard Note  Harmful
HazardClass  6.1
PackingGroup  III
急性毒性 口服-大鼠 LD50: 1600 毫克/公斤; 腹腔-小鼠 LD50: 437 毫克/公斤
刺激数据 皮肤-兔子 810  毫克/24小时 重度; 眼睛-兔子500 毫克/24小时 轻度
爆炸物危险特性 与空气混合可爆; 与氧气混合可爆
可燃性危险特性 受高热放出光气;蒸气不燃
储运特性 库房通风低温干燥; 与氧化剂、硝酸分开存放
灭火剂 泡沫、二氧化碳、雾状水、黄砂。
职业标准 TWA 350 毫克/立方米;STEL 879 毫克/立方米

  

用途及存储

用途  二氯甲烷是杀菌剂腈菌唑和咪菌唑生产的原料,也是一种很好的溶剂。
用途  是不燃性低沸点溶剂,作醋酸纤维素成膜、气溶胶和抗菌素、维生素生产中的溶剂,也用作萃取剂、金属清洗剂等
用途  萃取溶剂。如用于萃取咖啡豆中的咖啡因。并用作酒花、香辛料油树脂等抽提溶剂。色素稀释剂。
用途  用作溶剂,也用于有机合成

  密封干燥保存。