Description
Specifications Table
Product Name – Dichloromethane 99.8% PRA
Quantity/Pack Size – 1000 ml
Form – Liquid
Grade – PRA (Pro Analysis)
Application – Solvent, extractions, chromatography
Product Overview
Dichloromethane 99.8% PRA is a high-purity, analytical-grade solvent designed for demanding laboratory applications. This colorless, volatile liquid offers exceptional purity with minimal impurities, ensuring consistent and reliable results in sensitive procedures. Its low boiling point (39.6°C) and excellent solvency power make it a preferred choice for extractions, chromatography, and sample preparation. The PRA grade guarantees stringent quality control, meeting international standards for research and analytical use. With a density of approximately 1.326 g/cm³ at 20°C, it provides precise volume-to-weight conversions for accurate experimental setups. The solvent is stabilized to prevent decomposition and packaged in high-quality, leak-proof containers to maintain integrity during storage and handling. Its non-flammable nature (though requiring proper ventilation) adds an extra layer of safety in laboratory environments. The 99.8% purity level ensures minimal interference in spectroscopic analyses, making it particularly valuable for UV-Vis, IR, and NMR applications where solvent peaks must be minimized.
FAQs
1. What is the shelf life of this dichloromethane when stored properly?
When stored in its original, tightly sealed container at room temperature away from direct sunlight and moisture, this dichloromethane maintains its specified purity for at least 24 months from the date of manufacture.
2. Is this product compatible with standard laboratory glassware?
Yes, it is fully compatible with borosilicate glass and most common laboratory plastics including PTFE and HDPE, though prolonged exposure to some plastics may cause swelling or degradation.
3. What stabilization method is used for this dichloromethane?
This product contains amylene as a stabilizer to prevent the formation of hydrochloric acid and other decomposition products during storage.
4. How does the PRA grade differ from other dichloromethane grades?
The PRA grade undergoes additional purification steps and stricter quality control measures compared to technical or industrial grades, resulting in lower levels of water, non-volatile residues, and UV-absorbing impurities.
5. What precautions should be taken when handling this solvent?
Always use in a well-ventilated area or fume hood, wear appropriate PPE including nitrile gloves and safety goggles, and avoid inhalation of vapors as it may cause dizziness or nausea with prolonged exposure.
