Description
Specifications Table
Product Name – CHLOROFORM 99.8% PRA
Quantity/Pack Size – 1000 ml
Form – Liquid
Grade – PRA (Pro Analysis)
Application – Solvent, extraction, chromatography
Product Overview
CHLOROFORM 99.8% PRA is a high-purity solvent designed for precision laboratory applications. With a minimum purity of 99.8%, this reagent-grade chloroform ensures minimal interference in analytical procedures, making it ideal for sensitive extractions, chromatography, and spectroscopic analysis. Its low water content (<0.05%) and absence of stabilizers like ethanol or amylene guarantee consistent performance without residual contamination. The product is packaged in amber glass bottles to prevent photodegradation, preserving its stability over extended storage periods. Its high volatility and non-polar nature make it a preferred choice for dissolving lipids, oils, and other hydrophobic compounds. Strict quality control measures ensure batch-to-batch uniformity, while its compliance with international purity standards (ACS, Reag. Ph Eur) reinforces reliability. Whether used as a reaction medium or for sample preparation, this chloroform delivers reproducible results, reducing experimental variability. Proper handling with standard lab safety protocols is recommended due to its potential health hazards.
FAQs
1. What is the shelf life of chloroform 99.8% PRA when stored properly?
When stored in a tightly sealed amber glass bottle at room temperature, away from light and moisture, this chloroform retains its specified purity for up to 24 months from the date of manufacture. Degradation accelerates if exposed to air or sunlight, so minimize headspace in the container.
2. Is this chloroform stabilized with additives like ethanol or amylene?
No, this 99.8% PRA-grade chloroform is unstabilized, which eliminates potential interference from additives in analytical applications. However, this makes it more susceptible to decomposition over time, so proper storage is critical.
3. Can this chloroform be used for NMR spectroscopy?
While it meets high purity standards, deuterated chloroform (CDCl₃) is typically preferred for NMR due to its lack of proton signals. This product may introduce proton peaks, but it can be used for non-proton NMR or as a general solvent if deuterated options are unavailable.
4. What precautions should be taken when handling this chloroform?
Always use in a fume hood due to its volatile and potentially carcinogenic vapors. Wear nitrile gloves, safety goggles, and a lab coat to avoid skin contact. Avoid inhalation, and never use near open flames or ignition sources, as it is non-flammable but can form phosgene gas when exposed to heat or UV light.
5. How does PRA grade differ from AR or LR grade chloroform?
PRA (Pro Analysis) grade is stricter than AR (Analytical Reagent) or LR (Laboratory Reagent) grades, with tighter specifications for impurities like water, non-volatile residues, and heavy metals. It’s optimized for high-sensitivity applications where even trace contaminants could skew results, such as HPLC or GC analysis.
