Methyl Isobutyl Ketone (MIBK)
| Formula: | C₆H₁₂O |
| CAS Number: | 108-10-1 |
| EC Number (EINECS): | 203-550-1 |
| HS Code: | 29141300 |
| UN Number: | 1245 |
| IUPAC Name: | 4-Methylpentan-2-one |
| Also Known As: | Hexone; Isobutyl Methyl Ketone |
| Molecular Weight, g/mol: | 100.16 |
Typical Specifications
| Appearance: | Clear, colorless liquid |
| Odor: | Sweet, acetone-like odor |
| Melting Point, °C: | –84 |
| Boiling Point, °C: | 116–118 |
| Density, g/cm³ (at 20°C): | 0.801 |
| Flash Point, °C: | 14 (closed cup) |
| Refractive Index (20°C): | 1.396 |
| Purity, %: | ≥99.5 |
| Grades Available: | Industrial, Technical, Solvent Grade |
| Packaging: | 165kg drums, 200kg drums, 1000kg IBC, bulk ISO tanks |
Applications / Uses
Primary Applications
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Solvent in paints, varnishes, lacquers, and coatings
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Used in rubber processing and adhesives
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Extraction solvent in pharmaceuticals and oil industry
Secondary Applications
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Cleaning agent in inks and dyes
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Carrier solvent for pesticides and agrochemicals
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Intermediate in synthesis of fine chemicals
End Industries Served: Paints & Coatings, Rubber, Adhesives, Pharmaceuticals, Agrochemicals, Oil & Gas, Printing Inks
Safety & Handling Information
Hazard Class (GHS): Flammable liquid (Category 2), Acute Toxicity (Category 4), Specific Target Organ Toxicity – Single Exposure (Category 3)
Hazard Statements (H-Codes):
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H225: Highly flammable liquid and vapor
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H332: Harmful if inhaled
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H335: May cause respiratory irritation
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H336: May cause drowsiness or dizziness
Precautionary Statements (P-Codes):
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P210: Keep away from heat, sparks, open flames
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P280: Wear protective gloves/eye protection
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P261: Avoid breathing vapors
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P304 + P340: IF INHALED – remove person to fresh air and keep comfortable for breathing
Storage Conditions
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Store in cool, dry, well-ventilated area
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Keep container tightly closed
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Ground/bond containers to avoid static discharge
Transport Information
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ADR/RID: Class 3, UN1245, PG II
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IMDG: Class 3, UN1245, PG II
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IATA: Class 3, UN1245, PG II