Description
Specifications Table
Product Name – Dichloromethane, 99.5%, for spectroscopy ACS, stabilized with amylene
Quantity/Pack Size – 2.5LT, 500ML
Form – Liquid
Grade – ACS, Spectroscopy
Application – Solvent extraction, chromatography, UV/IR spectroscopy
Product Overview
Dichloromethane (DCM), 99.5% purity with ACS-grade certification, is a high-performance solvent stabilized with amylene to prevent phosgene formation during storage. This spectroscopy-grade variant ensures minimal UV absorption, making it ideal for applications requiring optical clarity and solvent consistency. The stabilized formulation enhances shelf life while maintaining low residual impurities, critical for sensitive analytical techniques. Its low boiling point (39.6°C) and high volatility enable rapid evaporation, reducing sample preparation time. The solvent’s polar aprotic nature allows efficient dissolution of a wide range of organic compounds, including lipids, resins, and polymers. Compatible with most laboratory glassware and HPLC systems, this DCM variant meets stringent ACS specifications for water content, non-volatile residue, and acidity. The amylene stabilization ensures long-term chemical integrity without compromising spectroscopic transparency. Packaged in amber glass bottles to prevent photodegradation, this product is designed for laboratories requiring reproducible results in UV-Vis, IR, and NMR spectroscopy.
FAQs
1. Why is amylene added to this dichloromethane?
Amylene (typically 0.005-0.01%) acts as a stabilizer to prevent the formation of phosgene and hydrochloric acid during storage, which can occur when DCM decomposes in the presence of light or moisture. This ensures the solvent remains chemically stable over extended periods without affecting its spectroscopic properties.
2. Can this DCM be used for HPLC applications?
Yes, this 99.5% ACS-grade dichloromethane is suitable for HPLC as it meets low UV cutoff requirements and has minimal residual impurities. However, for gradient HPLC, ensure compatibility with your mobile phase and column specifications, as some stationary phases may require additional filtration or degassing.
3. What is the typical shelf life of this stabilized dichloromethane?
When stored unopened in its original amber glass container at room temperature (15-25°C), this stabilized DCM maintains its specifications for up to 24 months. Once opened, use within 6 months and reseal tightly to minimize exposure to moisture and air.
4. How does the spectroscopy grade differ from reagent grade DCM?
Spectroscopy-grade DCM undergoes additional purification to remove UV-absorbing impurities, resulting in a lower UV cutoff (typically <240 nm) compared to reagent grade. It also has stricter limits on non-volatile residues, water content, and acidity, making it superior for optical applications where background interference must be minimized.
5. Is this DCM compatible with plastic containers or tubing?
Dichloromethane can dissolve or swell many plastics, including polystyrene, polycarbonate, and PVC. Use only with PTFE, glass, or HDPE containers and tubing. For long-term storage, transfer to amber glass bottles with PTFE-lined caps to prevent contamination or container degradation.
