SDS
Difluoromethane
(R32)
Safety Data Sheet
according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations
01/03/2020 EN (English) 6/8
12.2. Persistence and degradability
Difluoromethane (R32) (75-10-5)
Persistence and degradability Not readily biodegradable.
12.3. Bioaccumulative potential
Difluoromethane (R32) (75-10-5)
Log Pow 0.2
Log Kow Not applicable for gas mixtures.
Bioaccumulative potential Not expected to bioaccumulate due to the low log Kow (log Kow < 4). Refer to section 9.
12.4. Mobility in soil
Difluoromethane (R32) (75-10-5)
Ecology - soil Because of its high volatility, the product is unlikely to cause ground or water pollution.
Partition into soil is unlikely.
12.5. Other adverse effects
Other adverse effects : No known effects from this product.
Effect on the ozone layer : None.
Global warming potential [CO2=1] : 675
Effect on global warming Contains fluorinated greenhouse gases.
When discharged in large quantities may contribute to the greenhouse effect.
For quantities refer to cylinder label.
SECTION 13: Disposal considerations
13.1. Disposal methods
Waste treatment methods : Contact supplier if guidance is required. Do not discharge into areas where there is a risk of
forming an explosive mixture with air. Waste gas should be flared through a suitable burner
with
flash back arrestor. Ensure that the emission levels from local regulations or operating
permits are not exceeded. Refer to the EIGA code of practice Doc.30 "Disposal of Gases",
downloadable at http://www.eiga.eu for more guidance on suitable disposal methods. Refer to
supplier's waste gas recovery programme. Toxic and corrosive gases formed during
combustion should be scrubbed before discharge to atmosphere. Discharge to atmosphere in
large quantities should be avoided. Do not discharge into any place where its accumulation
could be dangerous. Return unused product in original cylinder to supplier.
Additional information : External treatment and disposal of waste should comply with applicable local and/or national
regulations.
List of hazardous waste codes (from
Commission Decision 2001/118/EC)
: 14 06 01 *: Chlorofluorocarbons, HCFC, HFC.
SECTION 14: Transport information
Department of Transportation (DOT)
In accordance with DOT
Transport document description : UN3252 Difluoromethane, 2.1
UN-No.(DOT) : UN3252
Proper Shipping Name (DOT) : Difluoromethane
Class (DOT) : 2.1 - Class 2.1 - Flammable gas 49 CFR 173.115
Hazard labels (DOT) : 2.1 - Flammable gas
DOT Packaging Non Bulk (49 CFR 173.xxx) : 302
DOT Packaging Bulk (49 CFR 173.xxx) : 314;315
DOT Special Provisions (49 CFR 172.102) : T50 - When portable tank instruction T50 is referenced in Column (7) of the 172.101 Table, the
applicable liquefied compressed gases are authorized to be transported in portable tanks in
accordance with the requirements of 173.313 of this subchapter.