Description
Specifications Table
Product Name – Dichloromethane, anhydrous, 150 ppm H2O
Quantity/Pack Size – 250 ml
Form – Liquid
Grade – Anhydrous (≤150 ppm H2O)
Application – Moisture-sensitive organic synthesis, chromatography, extractions
Product Overview
This anhydrous dichloromethane (DCM) is a high-purity solvent with strictly controlled moisture content (≤150 ppm H2O), making it indispensable for applications where trace water can compromise results. The solvent undergoes rigorous purification to remove residual water and stabilizers, ensuring consistent performance in critical laboratory procedures. Its low UV absorbance and high volatility make it particularly suitable for chromatographic techniques and rapid evaporation applications. The anhydrous grade eliminates the need for additional drying steps, saving time while maintaining experimental integrity. Packaged under inert conditions to prevent moisture absorption during storage, this DCM maintains its ultra-dry specification until use. The 250ml pack size offers convenient handling for small to medium-scale applications while minimizing exposure to atmospheric moisture during dispensing. Its chemical stability and non-flammable nature (though requiring proper ventilation) make it a safer alternative to other chlorinated solvents in many applications. The product’s high density (1.325 g/mL) and ability to dissolve a wide range of organic compounds further extend its utility in diverse laboratory protocols.
FAQs
1. How is the 150 ppm moisture specification verified for this dichloromethane?
The moisture content is verified using Karl Fischer titration, a standard method for water content determination in anhydrous solvents. Each batch is tested before packaging to ensure compliance with the ≤150 ppm specification.
2. Can this anhydrous DCM be used directly for HPLC applications?
While this grade is highly pure, for HPLC applications we recommend using HPLC-grade dichloromethane specifically tested for UV absorbance and gradient compatibility. This anhydrous grade is better suited for synthetic applications where moisture exclusion is critical.
3. What precautions should be taken when transferring this solvent to prevent moisture contamination?
Use a dry syringe or cannula under inert gas (nitrogen/argon) atmosphere when transferring. Ensure all glassware is properly dried (oven or flame) before use, and minimize exposure to ambient air during handling.
4. How does this compare to stabilized dichloromethane grades?
This anhydrous grade contains no added stabilizers (like amylene or ethanol) that are typically found in stabilized DCM. The absence of stabilizers makes it more suitable for applications where these additives might interfere with reactions or analyses.
5. What’s the typical shelf life for this anhydrous dichloromethane when stored properly?
When stored unopened in its original container under cool, dry conditions, this anhydrous DCM maintains its specification for at least 12 months from the date of manufacture. Once opened, use within 3 months for optimal performance.
