Chemically speaking, a hydrocarbon [HC] is an elemental compound of hydrogen and carbon that occurs naturally and is found in high concentrations in crude oil. Used as a modern refrigerant, non-toxic hydrocarbons are an environmentally friendly alternative to CFC/HCFC/HFC fluorocarbons linked to oz...
Type:Electrochemical Gas Analyzer; Item:Single Gas Detector; Sampling:Difusion; Working Voltage:3V Lithium Battery; Alarm Type:Acousto Optic Alarm with Vibration; Sensor Life:2-5 Years; Explosion-Proof Grade:Exdib Iic T3; Weight:Approx. 120g; ...
In the study published inProceedings of the National Academy of Sciences, researchers used the IIASA Greenhouse Gas—Air Pollution Interactions and Synergies (GAINS) model to compare the baseline halogenated refrigerant emission scenarios with scenarios of switching to HFC-32 or propane. While the switch...
consumption of HCFCs during the 2005-2009 periodwas roughly estimatedatan average of 65.6 metric tonnes (mt) (3.6 ODP tonnes per year [...] multilateralfund.org multilateralfund.org 在2005-2009 年期间,氟氯烃的消费量估计约为每年平均 65.6 公吨 (根据为编制氟 氯烃淘汰管理计划而进行的调查,每年...
is adequate, easily accessible and flexible; and the Copenhagen agreement to help reduce concentrations of CO2 in the atmosphere to no more than 350 parts per million; implying the need for a 40% global greenhouse gas emissions reduction by 2020 from 1990 levels and an 80% emissions reduction ...
99.5% Purity Propane Gas C3H8 Product Description High-purity propane is mainly used as organic chemical raw materials, chemical solvents, electronic semiconductors and refrigerants. As a refrigerant, R290 has no damage to the ozone layer and has a very small greenhouse effect. It i...
Thus although methane is a potent greenhouse gas, its effect is relatively short-lived. Nitrous oxide is destroyed in the stratosphere and removed from the atmosphere more slowly than methane, persisting for around 114 years. Compounds containing chlorine and/or fluorine (CFCs, HCFCs, HFCs, PFCs...
HCFC compounds were introduced as a short-term solution to replace CFCs. Ozone depletion chemical production of CFCs peaked globally in 1987-1988, and, since the introduction of HCFC compounds at the time, worldwide consumption of CFCs has fallen by 75% as of 1996. Despite this and the fact...