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Methyl Chloroformate

CAS Number:79‑22‑1

Appearance: Colorless to slightly yellow oily liquid; pungent, acrid odor

Chemical Formula:CH₃OCOCl

Overview

Methylene Chloride is a volatile, colorless liquid with a mildly sweet aroma, widely used as a solvent due to its excellent solvency properties. Though non-flammable, it evaporates quickly and is heavier than water. It is regulated due to its toxicity and potential carcinogenicity, so proper handling is essential.

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Key Properties

Boiling Point: 70–72 °C
Melting Point: –61 °C
Density: ~1.223 g/mL at 25 °C
Flash Point: ~10 °C
Vapor Pressure:~4.8 psi (≈330 mmHg) at 20 °C
Stability:Reacts violently with water (hydrolyzes to methanol, HCl, CO₂), moisture-sensitive

Applications

Reagent in organic synthesis: introduces methoxycarbonyl groups, converting alcohols/amines into methyl esters/carbamates
Photographic chemistry: carbamate production (dyes, agrochemicals, pharmaceuticals)
Analytical chemistry: derivatization agent for GC/MS