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Merck

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1.06044

二氯甲烷

for liquid chromatography LiChrosolv®

别名:

亚甲基氯

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关于此项目

线性分子式:
CH2Cl2
化学文摘社编号:
分子量:
84.93
UNSPSC Code:
12191502
NACRES:
NA.03
EC Index Number:
200-838-9
MDL number:
Beilstein/REAXYS Number:
1730800
Assay:
≥99.9% (GC)
Technique(s):
HPLC: suitable
Bp:
39.8-40 °C (lit.)
Vapor pressure:
24.45 psi ( 55 °C), 6.83 psi ( 20 °C)
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vapor density

2.9 (vs air)

Quality Segment

vapor pressure

24.45 psi ( 55 °C), 6.83 psi ( 20 °C)

description

isocratic

product line

LiChrosolv®

assay

≥99.9% (GC)

form

liquid

autoignition temp.

1223 °F, 605 °C (DIN 51794)

potency

1600 mg/kg LD50, oral (Rat), >2000 mg/kg LD50, skin (Rat)

contains

2-methyl-2-butene as stabilizer

expl. lim.

22 %

technique(s)

HPLC: suitable

impurities

≤0.0002 meq/g Acidity, ≤0.0002 meq/g Alkalinity, ≤0.01% Water

evapn. residue

≤5.0 mg/L

transmittance

240 nm, ≥70%, 245 nm, ≥90%, 260 nm, ≥99%

refractive index

n20/D 1.424 (lit.)

pH

7 (20 °C)

bp

39.8-40 °C (lit.)

mp

-95 °C, −95 °C (lit.)

solubility

20 g/L

density

1.325 g/mL at 25 °C (lit.)

SMILES string

ClCCl

storage temp.

2-30°C

InChI

1S/CH2Cl2/c2-1-3/h1H2

InChI key

YMWUJEATGCHHMB-UHFFFAOYSA-N

General description

LiChrosolv® 溶剂具有较高的紫外线透射率、低颗粒数、低酸碱度和低蒸发残留量。因而其是可重现分离的理想选择。
我们致力于为您带来更加绿色的替代产品,这些产品遵守一项或多项绿色化学12项原则。这种醋酸乙酯/乙醇溶液是色谱纯化中更加绿色的二氯甲烷替代品,因此已被升级为更安全的溶剂和辅助剂。点击此处以获取更多信息。

Application

可用于HPLC 和 UHPLC-MS应用。

Features and Benefits

  • 通过UHPLC-MS 和 UHPLC-UV适用性测试,规定用于UHPLC-MS 和 UHPLC-UV:实现分析灵活性
  • 正离子和负离子电喷雾离子化(ESI)和大气压化学电离质谱(APCI-MS)的规定质量使得所有重要MS模式下的分析实现最低检测限和信心(测试1)
    —ESI/APCI (+) < 2 ppb
    —ESI/APCI (-) < 10 ppb
  • 最低杂质 谱产生无干扰基线(测试2)
  • 通过 0.2 μm 过滤器微滤(测试3)以实现
    —过滤器和HPLC系统部件的长使用寿
    —减少柱堵塞风险
  • 装入硼硅酸盐玻璃瓶以实现最低的金属离子污染
  • 最低水平的微量金属杂质使形成的金属离子加合物最少
    —<5 ppb
  • UHPLC-MS溶剂系列中最低水平的聚乙二醇(PEG)杂质(PEG S/N 信噪比 < 50)

Preparation Note

产品已经过0.2 μm过滤器过滤

Analysis Note

纯度 (GC): ≥ 99.9 %
一致性(IR):符合
酸度: ≤ 0.0002 meq/g
碱度: ≤ 0.0002 meq/g
透射率(240 nm): ≥ 70 %
透射率(245 nm): ≥ 90 %
透射率(从260起 nm开始): ≥ 99 %
蒸发残留物: ≤ 5.0 mg/l
水: ≤ 0.01%
该产品添加2-甲基-2-丁烯稳定。
经0.2 µm过滤器过滤

Other Notes

探索各种实验室安全配件和设备,以安全处理溶剂,从一开始就提高您的安全水平。

Legal Information

LICHROSOLV is a registered trademark of Merck KGaA, Darmstadt, Germany

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此商品
1.006681.06048494453
assay

≥99.9% (GC)

assay

≥99.8% (GC)

assay

≥99.9% (GC)

assay

99.9%

technique(s)

HPLC: suitable

technique(s)

GC/MS: suitable

technique(s)

UV/Vis spectroscopy: suitable

technique(s)

-

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

solubility

20 g/L

solubility

-

solubility

-

solubility

-

form

liquid

form

liquid

form

liquid

form

-

density

1.325 g/mL at 25 °C (lit.)

density

1.325 g/mL at 25 °C (lit.)

density

1.325 g/mL at 25 °C (lit.)

density

1.325 g/mL at 25 °C (lit.)


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pictograms

Health hazardExclamation mark

signalword

Warning

Hazard Classifications

Carc. 2 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Central nervous system

存储类别

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk

WGK 2



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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

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