Functional Roles
Industries Served
Physical Properties
physical_description
N-butyl methacrylate appears as a clear colorless liquid. Flash point 130 u00b0F. Less dense (7.5 lb / gal) than water and insoluble in water. Hence floats on water. Vapors heavier than air. Used to make resins adhesives, and oil additives.
color/form
Colorless liquid
odor
Faint characteristic odor of esters
boiling_point
326.3 to 338.9 u00b0F at 760 mmHg (NTP, 1992)
melting_point
freezing point: less than -75 u00b0C
flash_point
126 u00b0F (52 u00b0C) (open cup)
solubility
Solubility in water, g/100ml at 25 u00b0C: 0.08 (very poor)
density
Liquid heat capacity: 0.460 BTU/lb-F at 70 u00b0F; Liquid thermal conductivity: 1.048 BTU-in/hr-sq ft-F at 70 u00b0F; Saturated vapor density: 0.00203 lb/cu ft at 70 u00b0F
vapor_density
4.9 (NTP, 1992) - Heavier than air; will sink (Relative to Air)
vapor_pressure
Vapor pressure, kPa at 20 u00b0C: 0.3
logp
log Kow = 2.88
autoignition_temperature
562 u00b0F (USCG, 1999)
decomposition
When heated to decomp it emits acrid smoke and irritating fumes.
viscosity
1.02 mmu00c2u00b2/s at 24 u00b0C
polymerization
Methyl methacrylate, and in general the methacrylic esters, polymerize much less readily than the corresponding ordinary acrylates. Nonetheless, they are stabilized by adding hydroquinone or pyrogallol, particularly in the presence of metallic copper. /Methacrylates/
refractive_index
Index of refraction: 1.4240 at 20 u00b0C/D
kovats_retention_index
1220
other_experimental_properties
Liquid water interfacial tension: 35 dynes/cm = 0.035 N/m at 20 u00b0C; Heat of polymerization: -180 BTU/lb = -100 cal/g = -4.2X10+5 J/kg; Reid vapor pressure: low
GHS / SDS Safety
Warning
Irritant
Health Hazard
Flammable
- H315: Causes skin irritation [Warning Skin corrosion/irritation]
- H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
- H226: Flammable liquid and vapor [Warning Flammable liquids]
- H335 (99.7%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
- H316: Causes mild skin irritation [Warning Skin corrosion/irritation]
- H361: Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]
- H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]
- H401: Toxic to aquatic life [Hazardous to the aquatic environment, acute hazard]
- H317: May cause an allergic skin reaction [Warning Sensitization, Skin]
- H317 (99.7%): May cause an allergic skin reaction [Warning Sensitization, Skin]
- H320: Causes eye irritation [Warning Serious eye damage/eye irritation]
- H319 (94%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H315 (99.8%): Causes skin irritation [Warning Skin corrosion/irritation]
- H226 (99.8%): Flammable liquid and vapor [Warning Flammable liquids]
Chemical Identity
| CAS Number | 97-88-1 |
| IUPAC Name | butyl 2-methylprop-2-enoate |
| InChI Key | SOGAXMICEFXMKE-UHFFFAOYSA-N |
| PubChem CID | 7354 |
| INCI Name | BUTYL METHACRYLATE |
Synonyms & Trade Names
Full Description
Butyl methacrylate (BMA) is a methacrylate monomer with the molecular formula C8H14O2 that functions as a crosslinking and curing agent in polymer formulations. This chemical is utilized primarily in coatings and construction applications as well as plastics and polymer manufacturing processes. BMA serves as a reactive diluent that enables controlled polymerization and crosslinking reactions in industrial formulations.