Shipping Classification
Methacrylaldehyde, stabilized
What this means
Methacrylaldehyde, stabilized appears on the federal Hazardous Materials Table (49 CFR §172.101), the table that governs how a material must be classified, packaged, and labeled for transport.
Hazard class / division
Class 3
UN / NA identification number
UN2396
Packing group
II
Label codes
3, 6.1
Packaging — exceptions
150
Packaging — non-bulk
202
Packaging — bulk
243
Passenger aircraft / rail limit
1 L
Cargo aircraft only limit
60 L
Vessel stowage location
D
Vessel stowage — other
25, 40
Special provisions (§172.102)
45 — Temperature should be maintained between 18 °C (64.4 °F) and 40 °C (104 °F). Tanks containing solidified methacrylic acid must not be reheated during transport.
387 — When materials are stabilized by temperature control, the provisions of § 173.21(f) of this subchapter apply. When chemical stabilization is employed, the person offering the material for transport shall ensure that the level of stabilization is sufficient to prevent the material as packaged from dangerous polymerization at 50 °C (122 °F). If chemical stabilization becomes ineffective at lower temperatures within the anticipated duration of transport, temperature control is required in which case transportation is forbidden by aircraft. In making this determination factors to be taken into consideration include, but are not limited to, the capacity and geometry of the packaging and the effect of any insulation present; the temperature of the material when offered for transport; the duration of the journey and the ambient temperature conditions typically encountered in the journey (considering also the season of year); the effectiveness and other properties of the stabilizer employed; applicable operational controls imposed by regulation (e.g., requirements to protect from sources of heat, including other cargo carried at a temperature above ambient); and any other relevant factors.
IB2 (see §172.102 or related section for full text)
T7 (see §172.102 or related section for full text)
TP1 (see §172.102 or related section for full text)
TP13 (see §172.102 or related section for full text)
Packaging citations reference sections of 49 CFR Part 173 not expanded here. View the full official table on eCFR.gov.
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Source: Hazardous Materials Table (49 CFR §172.101) and Special Provisions (49 CFR §172.102), current as retrieved from eCFR.gov. View official table.