439223

二氯甲烷

suitable for HPLC, ≥99.9%, contains 40-150 ppm amylene as stabilizer

• 别名: 亚甲基氯
• 经验公式（希尔记法）: CH₂Cl₂
• CAS号: 75-09-2
• 分子量: 84.93
• Beilstein: 1730800
• EC號碼: 200-838-9
• MDL號碼: MFCD00000881
• 分類程式碼代碼: 12190000
• PubChem物質ID: 24867491
• NACRES: NA.21

属性

• 蒸汽密度: 2.9 (vs air)
• 品質等級: 100
• 蒸汽壓力: 24.45 psi ( 55 °C); 6.83 psi ( 20 °C)
• 化驗: ≥99.9%
• 形狀: liquid
• 自燃溫度: 1223 °F
• 包含: 40-150 ppm amylene as stabilizer
• expl. lim.: 22 %
• 技術: HPLC: suitable
• 雜質: Free halogens, passes test; ≤0.0003 meq/g Titr. acid; ≤0.02% water
• 蒸發殘留物: <0.0003%
• 顏色: APHA: ≤10; clear
• 折射率: n20/D 1.424 (lit.)
• bp: 39.8-40 °C (lit.)
• mp: −95 °C (lit.)
• 密度: 1.325 g/mL at 25 °C (lit.)
• &lambda ；: H₂O reference
• 紫外吸收: λ: 235 nm A_max: 1.00; λ: 240 nm A_max: 0.20; λ: 250 nm A_max: 0.05; λ: 260 nm A_max: 0.02; λ: 340-400 nm A_max: 0.01
• 適合性: passes test for HPLC
• SMILES 字串: ClCCl
• InChI: 1S/CH2Cl2/c2-1-3/h1H2
• InChI 密鑰: YMWUJEATGCHHMB-UHFFFAOYSA-N

说明

一般說明

Dichloromethane (DCM) is a chlorinated organic solvent with a wide range of industrial applications. It has C_2v symmetry, low boiling point, high density and is immiscible in water. Degradation of DCM by various methods has been reported. Ultrasonic absorption studies of liquid DCM shows strong relaxation effect. A study reports the dielectric characteristics of DCM over a wide frequency range. DCM is susceptible to degradation with time, which can be suppressed by adding amylene as a stabilizer.

應用

符合 ACS 规范。

Dichloromethane (Methylene chloride) may be used in the following processes:

• To compose ultrasonic baths for cleaning and protection of aluminum coating over atactic-PMMA (poly(methyl methacrylate)) for dielectric studies.
• Preparation of AMBF₃ (ammoniomethyltrifluoroborate)-conjugated biomolecules.
• Sample preparation for GC-MS (Gas Chromatography-Mass Spectrometry) analysis.
• Preparation of ammonium acetate solvent mixture in combination with isopropanol, acetonitrile and water for mass spectral analysis of neutral lipids.
• Quantification of glutathione (GSH) and glutathione disulfide (GSSG) in biological samples by HPLC and spectrophotometry.
• As an extractant for 2,2-dithioethyl-4-(2′-pyridyl)-4-butyro-γ-lactone.

準備報告

产品经过 0.2μm 过滤器过滤

安全信息

• 象形圖: GHS08,GHS07
• 訊號詞: Warning
• 危險聲明: H315,H319,H336,H351
• 防範說明: P202 - P261 - P264 - P302 + P352 - P305 + P351 + P338 - P308 + P313
• 危險分類: Carc. 2 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• 標靶器官: Central nervous system
• 儲存類別代碼: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• 水污染物質分類（WGK）: WGK 2
• 閃點（°F）: does not flash
• 閃點（°C）: does not flash
• 個人防護裝備: Eyeshields, Faceshields, Gloves