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Diiodomethane : MI : Methylene Iodide - Simmons Smith Reaction [ CAS: 75-11-6 ] - 500g
![Diiodomethane : MI : Methylene Iodide - Simmons Smith Reaction [ CAS: 75-11-6 ] - 500g](/environment/cache/images/500_500_productGfx_369/d5430712a0849f2c06a0af9e31096285.jpg?overlay=1)
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Description
Diiodomethane
Other Names: Methylene iodide, Diiodomethylene
CAS Number: 75-11-6
Sum Formula: CH₂I₂
Molar Mass: 267.84 g/mol
Appearance: Colorless to pale yellow liquid (darkens upon exposure to light)
Diiodomethane is a dense, halogenated organic compound composed of one carbon atom bonded to two iodine atoms and two hydrogen atoms. It is used in a range of chemical and industrial applications, particularly as a solvent and a reagent in synthesis and density-based separation techniques.
Chemical and Physical Properties
Density: 3.32 g/cm³ at 20°C
Melting Point: 6.2°C
Boiling Point: 181–182°C
Solubility in Water: Slightly soluble
Solubility in Other Solvents: Soluble in ethanol, ether, and chloroform
Odor: Sweet, penetrating odor
Light Sensitivity: Darkens on exposure to light
Applications
Organic Synthesis: Used as a reagent in the cyclopropanation of alkenes and in other halogenation reactions.
Density Separation: Applied in mineralogy and material science to separate mixtures based on density due to its high specific gravity.
Spectroscopy and Optical Research: Occasionally used in refractive index studies and as a reference liquid.
Chemical Research: Employed in specialized laboratory reactions requiring highly halogenated solvents.
Safety
Signal Word: Danger
H302 (93.2%): Harmful if swallowed [Warning Acute toxicity, oral]
H315 (36.9%): Causes skin irritation [Warning Skin corrosion/irritation]
H318 (29%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
H335 (36.9%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
H412 (59.7%): Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
P261, P264, P264+P265, P270, P271, P273, P280, P301+P317, P302+P352, P304+P340, P305+P354+P338, P317, P319, P321, P330, P332+P317, P362+P364, P403+P233, P405, and P501
First Aid Measures
Eye Contact: Rinse thoroughly with water for several minutes. Seek immediate medical attention.
Skin Contact: Wash with soap and water. Remove contaminated clothing. Seek medical help if irritation occurs.
Inhalation: Move to fresh air. Seek medical attention if breathing becomes difficult.
Ingestion: Rinse mouth. Do not induce vomiting. Seek immediate medical attention.
Handling and Storage
Storage Conditions: Store in a tightly closed amber glass container in a cool, dry, and well-ventilated place. Protect from light and moisture.
Handling Precautions: Avoid inhalation and contact with skin or eyes. Use proper ventilation and protective equipment when handling.