11
Ecological information
It decomposes relatively quickly in the lower
atmosphere (troposphere). Decomposition
products are highly dispersed and therefore have
a very low concentration.
It does not affect photochemical smog (i.e.
it does not fall within the volatile organic
compounds - VOC - according to the provisions
of the UNECE agreement).
The ozone depletion potential (ODP) is 0 for both
R404A and R452A measured against a standard
ODP equal to 1 for cfc11 (according to the uNeP
definitions). The global warming potential of gas
(GWP) is 3260 for R404A and 2141 for R452A.
The substance is regulated by the Montreal
Protocol (1992 revision). Product discharges
released into the atmosphere do not cause
long-term water contamination.
Disposal considerations
The best solution is to recover and recycle the
product.
If this is not possible, destruction must take
place in an authorized plant equipped to absorb
and neutralize acid gases and other toxic
processing products.
Accidental release measures
Ensure adequate personal protection (with the
use of means of protection for the respiratory
tract) during the elimination of spills.
If conditions are sufficiently safe, isolate the
source of the leak. In the presence of small spills,
allow the material to evaporate on condition that
there is adequate ventilation.
Significant losses:
•
ventilate the area;
•
contain the spilled material with sand, soil or
other suitable absorbent material;
•
prevent liquid from entering drains, sewers,
basements and work pits, because the
vapours can create a suffocating atmosphere.
Handling
Avoid inhalation of high concentrations
of vapours. Atmospheric concentrations
must be kept to a minimum and kept to the
minimum reasonably possible level, below the
occupational exposure limit.
The vapours are heavier than air, and therefore
it is possible to form high concentrations near
the ground where general ventilation is poor.
In these cases, ensure adequate ventilation or
wear suitable respiratory protective devices
with an air reserve. Avoid contact with open
flames and hot surfaces as irritating and toxic
decomposition products can form.
Prevent the liquid from coming into contact with
the eyes/skin.
ed. 11 | 2020
