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EC number: 202-500-6
CAS number: 96-33-3
Methyl acrylate does not absorb UV
radiation at wavelengths > 290 nm, i.e. methyl acrylate does not
directly photolyse. However, it is susceptible to photo-oxidation via
vapour phase reaction with photochemically-produced hydroxyl radicals
According to Q(SAR) data using SRC AOP
v1.92, MA will be slowly degraded by photochemical processes after
exposure to the air reacting with the photochemically produced hydroxyl
radicals and with ozone (calculated half-life for a 24-hour day and
0.5E06 OH/cm3: 40.9 hours (= 1.7 days); for a 24-hour day and 7E11
O3/cm3: 6.55 days) (BASF SE, 2008).
In a hydrolysis study conducted by BASF
AG (1998), the half-life of methyl acrylate in water at pH 11 was
determined to be approximately 1.8 h. Over the test period of 28 days
methyl acrylate showed no significant hydrolysis at pH 3 and pH 7.
Therefore, the substance will hydrolyse
slowly in contact with water under environmental conditions.
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