Sigma-Aldrich
Dichloromethane For HPLC 99.9% 40-150 PPM Amylene 4 Liter, case/4
- Part Number:
- MIL-439223-4X4L
- Lead Time:
- 2-4 weeks
- Minimum Purchase:
- 1 unit
- Shipping:
- FREE SHIPPING on most orders over $50*
- Quantity:
- 4
- Size:
- 4 liter / 1 gallon
- Style:
- chemical
- DOT Rated:
- HazMat Transport Fee Required
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Description
Dichloromethane For HPLC ≥99.9% 40-150 PPM Amylene 4 Liter Case/4
Synonym: Methylene chloride
- CAS Number 75-09-2
- Empirical Formula (Hill Notation) CH2Cl2
- Molecular Weight 84.93
- Beilstein/REAXYS Number 1730800
- EC Number 200-838-9
- MDL number MFCD00000881
- PubChem Substance ID 24867491
- NACRES NA.21
| Grade | for HPLC |
| Vapor Density | 2.9 (vs air) |
| Vapor Pressure | 24.45 psi (55°C) |
| 6.83 psi (20°C) | |
| Assay | ≥99.9% |
| Autoignition Temperature | 1223°F |
| Contains | 40-150 ppm amylene as stabilizer |
| Expl. Lim. | 22 % |
| Impurities | Free halogens, passes test |
| ≤0.0003 meq/g Titr. acid | |
| ≤0.02% water | |
| Evaporation Residue | <0.0003% |
| Color | APHA: ≤10 |
| clear | |
| Refractive Index | n20/D 1.424 (lit.) |
| bp | 39.8-40°C (lit.) |
| mp | −97°C (lit.) |
| Density | 1.325 g/mL at 25°C (lit.) |
| λ | H2O reference |
| UV absorption | λ: 235 nm Amax: 1.00 |
| λ: 240 nm Amax: 0.20 | |
| λ: 250 nm Amax: 0.05 | |
| λ: 260 nm Amax: 0.02 | |
| λ: 340-400 nm Amax: 0.01 | |
| suitability | passes test for HPLC |
General description
Dichloromethane (DCM) is a chlorinated organic solvent with a wide range of industrial applications. It has C2v 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.
Application
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 (ammoniomethyltrifluorobo‹rate)-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-(2²-pyr‹idyl)-4-butyro-γ-lactone.
Meets ACS specifications
GHS07, GHS08
Signal word Warning
Hazard statements H315-H319-H336-H351
Precautionary statements P201-P261-P264-P280-P304 + P340 + P312-P308 + P313
Personal Protective Equipment Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US)
RIDADR UN 1593 6.1 / PGIII
WGK Germany 2
RTECS PA8050000
Documents
Warnings
Note: These chemicals are for research & laboratory use only. Your order will not be processed if you do not work for, and ship to, a registered laboratory or research facility. Not for topical applications. An official Declaration of Use form may be required.
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