Introduction to Methylene Dichloride (MDC)

Methylene Dichloride, also known as Dichloromethane (DCM), is a colorless, volatile liquid with the chemical formula CH₂Cl₂. It is widely recognized for its exceptional solvency and versatility. As a trusted supplier, VM Minerals provides high-quality MDC, ideal for industrial processes, pharmaceuticals, and cleaning applications.

Methylene Dichloride Formula and Structure

What is the Formula of Methylene Dichloride?

The molecular formula of Methylene Dichloride is CH₂Cl₂, consisting of two chlorine atoms and two hydrogen atoms bonded to a single carbon atom.

Structural Representation of MDC

MDC has a simple structure with a carbon atom at the centre, covalently bonded to two hydrogen atoms and two chlorine atoms, arranged in a tetrahedral geometry.

Key Chemical Characteristics

• Appearance: Clear, colourless liquid
• Odour: Sweet, chloroform-like smell
• Volatility: Highly volatile with fast evaporation

Physical and Chemical Properties of MDC

Boiling Point of Methylene Dichloride

The boiling point of MDC is 39.6°C (103.3°F), making it highly volatile and ideal for solvent-based applications.

Other Physical Properties

• Molecular Weight: 84.93 g/mol
• Density: 1.33 g/cm³ at 20°C
• Melting Point: -96.7°C (-142.1°F)
• Solubility: Slightly soluble in water; miscible with organic solvents like alcohol and ether.

Chemical Reactivity and Behavior

• Chemically stable under normal conditions.
• Reacts with strong oxidizing agents.
• Decomposes at high temperatures to produce toxic gases like phosgene and hydrogen chloride.

Applications of Methylene Dichloride

Role in Paint Removal and Coatings

MDC is a key ingredient in paint strippers and coating removers due to its excellent solvency and fast evaporation.

Use of MDC in Pharmaceuticals and Solvent Extraction

Methylene Dichloride serves as a solvent for:

• Pharmaceutical processes: Extraction and purification of active ingredients.
• Food industry: Caffeine extraction for decaffeinated coffee and tea.

Applications in Metal Cleaning and Degreasing

MDC is extensively used as a degreasing agent for cleaning metals and machinery parts in manufacturing industries.

Role in Adhesives and Polymer Manufacturing

MDC is an effective solvent for producing adhesives, resins, and polymers, including polyurethane foams.

Why Choose VM Minerals for Methylene Dichloride?

Premium-Quality MDC for Industrial Needs

VM Minerals ensures the supply of high-purity MDC that meets international quality standards for performance and safety.

Reliable Supply Chain and Custom Solutions

We provide bulk quantities with flexible packaging options, ensuring on-time delivery and tailored solutions.

Technical Support and Expert Assistance

Our team of experts is ready to assist with product inquiries, technical support, and application guidance.

Safety and Handling Guidelines for MDC

Potential Health Hazards and Exposure Risks

• Inhalation of vapors can cause dizziness, headaches, or respiratory irritation.
• Prolonged skin contact may result in dryness or dermatitis.
• High exposure can affect the central nervous system.

Best Practices for Safe Storage and Transportation

• Store MDC in tightly sealed containers in a cool, well-ventilated area.
• Keep away from heat, flames, and oxidizing agents.
• Use appropriate labeling and follow transportation guidelines.

Personal Protective Measures and Spill Management

• Wear PPE, including gloves, goggles, and respirators.

Manage spills using absorbents and follow proper disposal protocols

Environmental Impact of Methylene Dichloride

Eco-Impact and Biodegradability

MDC evaporates quickly and does not persist in the environment for long. However, it can contribute to air pollution if not handled properly.

Regulatory Standards and Compliance

VM Minerals ensures that all supplied MDC complies with international environmental and safety regulations to minimize ecological impact.

Comparison of Methylene Dichloride with Other Solvents

MDC vs. Acetone

• MDC: Higher solvency, slower evaporation compared to acetone.
• Acetone: Fast evaporation but less effective for heavy-duty cleaning.

MDC vs. Toluene

• MDC: Lower toxicity and better for pharmaceutical extraction.
• Toluene: More volatile and often used in coatings and paints.

Reactions Involving Methylene Dichloride

Combustion and Thermal Decomposition

MDC decomposes at high temperatures to release toxic gases like hydrogen chloride and phosgene.

MDC in Organic Reactions

MDC is widely used as a solvent in organic synthesis and chemical reactions requiring non-polar solvents.

Frequently Asked Questions (FAQs)

What is Methylene Dichloride Used For?

MDC is used in paint stripping, pharmaceuticals, solvent extraction, and metal cleaning.

What is the Boiling Point of Methylene Dichloride?

MDC boils at 39.6°C (103.3°F).

How Should Methylene Dichloride Be Stored?

Store MDC in sealed containers, in cool, ventilated spaces away from heat and oxidizing agents.

Is Methylene Dichloride Environmentally Safe?

MDC evaporates quickly but requires careful handling to prevent air pollution and ecological harm.

What Are the Safety Precautions for Handling MDC?

Use proper PPE, avoid inhalation of vapors, and ensure adequate ventilation during use.

How is MDC Different from Other Solvents?

MDC has superior solvency, slower evaporation, and lower toxicity compared to some industrial solvents.