Substance profile
Isobutyl Methacrylate
Isobutyl Methacrylate is a liquid.
01 · Identification
What Isobutyl Methacrylate is
Isobutyl Methacrylate is a liquid. Its molecular formula is C8H14O2 and its molecular weight is 142.2 g/mol. It boils at 155 °C, melts at -61 °C, is miscible with water.
Under the GHS it carries the signal word Warning. It is classed as flammable agents - 2nd degree.
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
| Code | Hazard statement |
|---|---|
| H226 | Flammable liquid and vapour. |
| H335 | May cause respiratory irritation. |
| H315 | Causes skin irritation. |
| H317 | May cause an allergic skin reaction. |
Precautionary statements: P210, P233, P241, P242, P261, P264, P272, P280, P302, P313, P332, P333, P352, P403
03 · Physical and chemical properties
Isobutyl Methacrylate properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 155 °C (311 °F) | HSDB | |
| 155 °C (311 °F) | at 760 mmHg | CAMEO | |
| Melting point | -61 °C (-77.8 °F) | HSDB | |
| Density | 0.8858 g/cm³ | at 20 °C | HSDB |
| 0.882 g/cm³ | at 25 °C | HSDB | |
| Solubility | Miscible with ethanol, ethyl ether | HSDB | |
| Insoluble in water | HSDB | ||
| In water, 1300 mg/L at 25 °C | at 25 °C | HSDB | |
| Vapor pressure | 3.63 mmHg | at 25 °C | HSDB |
| 3.63 mmHg | Haz-Map | ||
| Flash point | 35 °C (95 °F) | closed cup | HSDB |
| 49 °C (120.2 °F) | Tag open cup | HSDB | |
| 48.89 °C (120 °F) | CAMEO | ||
| Autoignition temperature | 390 °C (734 °F) | HSDB | |
| Lower explosive limit (LEL) | 1 % by volume | HSDB | |
| Upper explosive limit (UEL) | 7.4 % by volume | HSDB | |
| Odor threshold | 0.016 - 0.069 ppm | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Isobutyl Methacrylate
Storage conditions
Temp during storage must be kept low to minimize formation of peroxides and other oxidation products. ... Storage temp below 30 °C are recommended for i-Butylmethacrylate. The methacrylate monomer should not be stored for longer than one year. Isobutyl methacrylate is sensitive to UV light and should, therefore, be stored in the dark. The methacrylic ester may be stored in mild steel, stainless steel, or aluminum.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
ISOBUTYL METHACRYLATE is an acrlate ester. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides. This compound polymerizes readily. (NTP, 1992)
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Isobutyl Methacrylate in the storage compatibility matrix →