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Heptafluoropropane (HFC-227ea) contributes to climate change.It has a global warming potential (GWP) of 3,220 over 100 years. [3]Due to its high GWP, the HFC-227ea has been included in the list of controlled substances of the Montreal Protocol (2016 Kigali amendment, in effect in January 2019). [4]
GenX is a Chemours trademark name for a synthetic, short-chain organofluorine chemical compound, the ammonium salt of hexafluoropropylene oxide dimer acid (HFPO-DA). It can also be used more informally to refer to the group of related fluorochemicals that are used to produce GenX.
1,2,3,3,3-Pentafluoropropene is the unsaturated fluorocarbon with the formula HFC=C(F)CF 3. This colorless gas is of interest as a precursor to hydrofluoroolefins (HFOs), which are used as refrigerants in air conditioners. Of the methods reported for its synthesis, one route involves dehydrofluorination of 1,1,2,3,3,3-hexafluoropropane.
The iPhone 15 and iPhone 15 Plus use USB-C with USB 2.0 transfer speeds (up to 480 Mb/s or 60 MB/s), [17] compared to the iPhone 15 Pro and iPhone 15 Pro Max which have faster USB 3.2 Gen 2 transfer speeds (up to 10 Gb/s or 1.25 GB/s). [18]
When mixed with O 2, CO 2, or N 2, in the range of reported applications, the GWP of the complete mixture is usually in the range of GWP 100 300-500. Additionally, the GWP is a CO 2 equivalent per unit of mass and C4-FN mixtures being typically 50% lighter than SF 6, the CO 2 reduction is in the range of 98.7-99.3% compared to SF 6 at identical ...
3,3′,5,5′-Tetramethylbenzidine or TMB is a chromogenic substrate used in staining procedures in immunohistochemistry as well as being a visualising reagent used in enzyme-linked immunosorbent assays . [1] TMB is a white solid that forms a pale blue-green liquid in solution with ethyl acetate.
As for rational numbers, ternary offers a convenient way to represent 1 / 3 as same as senary (as opposed to its cumbersome representation as an infinite string of recurring digits in decimal); but a major drawback is that, in turn, ternary does not offer a finite representation for 1 / 2 (nor for 1 / 4 , 1 / 8 ...
The 3–3–5 defense can also be referred to as the 3–3 stack or the spread defense. It is one form of the nickel defense, a generic term for a formation with five defensive backs. Veteran college football defensive coordinator Joe Lee Dunn is widely credited with being the main innovator of the 3–3–5 scheme. [1]
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