Methyl Isobutyl Ketone (MIBK) is commonly used for a variety of purposes, primarily due to its unique properties as a solvent and intermediate in chemical reactions:

CAS: 110-12-3.
Chemical formula: C7H14O, also expressed as CH3COCH2CH2CH(CH3)2.
 

Table 1: Physical Properties of Methyl Isobutyl Ketone (MIBK)

Property	Description
CAS Number	110-12-3
Formula	C7H14O
Molecular Weight	114.18 g/mol
Appearance	Clear, colorless liquid
Odor	Characteristic, slightly fruity
Density	Approximately 0.81 g/mL at 20°C
Boiling Point	Approximately 144°C (363.15 K)
Flash Point (Open Cup)	Approximately 41°C
Solubility in Water	Slightly soluble
Solubility in Organic Solvents	Soluble in ethanol, ether, etc.
Refractive Index	Approximately 1.397 at 20°C
Vapor Pressure	Moderate, depends on temperature
Viscosity	Low, depends on temperature

Table 2: Chemical Properties of Methyl Isobutyl Ketone (MIBK)

Property	Description
Chemical Class	Ketone
Functional Groups	Carbonyl group (C=O)
Reactivity	Moderately reactive, can undergo oxidation, reduction, and condensation reactions
Combustion	Combustible, produces carbon dioxide and water upon complete combustion
Stability	Stable under normal conditions, avoids heat, sparks, and open flames
Hazard Potential	Flammable, vapor may form explosive mixtures with air, may cause irritation to skin and eyes
Chemical Compatibility	Reacts with strong oxidants and acids, may undergo condensation reactions with aldehydes and ketones
Uses in Synthesis	Intermediate in organic synthesis, solvent for polymers and resins, flavoring agent in food and beverages
Environmental Considerations	Vapor may cause pollution, proper disposal and storage practices are necessary

Common Application Fields

1. Organic Solvent: MIBK is an important organic solvent widely used in dissolving various chemicals such as cellulose acetate, acrylic resins, and polyvinyl butyral resins. During the manufacturing process, these resins and celluloses often require MIBK to adjust their viscosity and fluidity, facilitating processing and molding.

2. Organic Synthesis: As a crucial raw material or intermediate in organic synthesis, MIBK can participate in various chemical reactions, such as reduction, oxidation, and condensation reactions, providing key support for the production of organic chemical products.

3. Paints, Coatings, and Digital Printing Inks: In the paints, coatings, and digital printing inks industries, MIBK is often used as a solvent due to its good solubility and volatility. It helps pigments and resins evenly disperse and adjusts the viscosity and fluidity of coatings, achieving the desired coating effect and print quality.

4. Rubber Antioxidants: MIBK is an important raw material for rubber antioxidants, enhancing the aging resistance and service life of rubber. During the production of rubber products, adding an appropriate amount of MIBK can effectively extend the service life of rubber products.

5. New Energy and Environmental Protection Industries: With the rapid development of new energy and environmental protection industries, the application of MIBK in these fields has gradually expanded. For example, it can be used to prepare high-performance polybutene-1 piping, which has excellent comprehensive performance and can be used at higher temperatures for a long time. It is corrosion-resistant, scale-free, and has good silencing effects, making it ideal for hot water supply systems, heating systems, and air conditioning systems.

6. Pharmaceuticals, Fragrances, and Pesticides: MIBK can also be used to prepare certain pharmaceutical intermediates, fragrances, and pesticides, further broadening its market demand and application prospects.

MIBK has a wide range of applications in multiple fields, but strict adherence to relevant safety operating procedures and protective measures is required during storage and use to ensure the safety of personnel and the environment.

Storage Methods

1. Storage Environment: MIBK should be stored in a cool, well-ventilated warehouse, away from ignition sources and heat. The temperature in the warehouse should not exceed 30°C to ensure its stability and safety.

2. Storage Equipment: Containers used for storing MIBK should be tightly sealed to prevent evaporation and leakage. Additionally, explosion-proof lighting and ventilation facilities should be used to reduce the risk of fire and explosion.

3. Leakage Handling: If leakage occurs during storage, immediate measures should be taken to collect the leaked liquid and store it in a sealable container. Use sand or inert absorbent to absorb residues and store and dispose of them according to local regulations. Never flush the leakage into sewers to avoid environmental pollution.

4. Safety Signs: The storage area should be equipped with clear safety signs and warning marks to remind operators of safety and protective measures.