433-66-9 Usage
General Description
1,1,2,3,3-Pentafluoropropene, also known as HFO-1234ze(E) or Trans-1,3,3,3-Tetrafluoropropene, is a non-toxic, non-flammable, and environmental-friendly refrigerant. As a hydrofluoroolefin (HFO), it has a very low Global Warming Potential (GWP) and is commonly used in air conditioning and heat pump applications. It is also used as a blowing agent for foam insulation, propellant for aerosols, and a precursor to other fluorinated compounds. Its low toxicity and flammability, along with its minimal environmental impact, make it a favorable choice in both domestic and industrial applications. This chemical is colorless, with a slight ethereal odor, and doesn’t damage the ozone layer. However, like all chemicals, it should be handled correctly to avoid any potential risks.
Check Digit Verification of cas no
The CAS Registry Mumber 433-66-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,3 and 3 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 433-66:
(5*4)+(4*3)+(3*3)+(2*6)+(1*6)=59
59 % 10 = 9
So 433-66-9 is a valid CAS Registry Number.
433-66-9Relevant articles and documents
Cyclopropane Chemistry. Part 4. The Reactions of 1,2,2-Trifluoroethylidene with Alkenes and Pyrolysis of the Resulting Cyclopropanes
Haszeldine, Robert N.,Rowland, Ronald,Speight, James G.,Tipping, Anthony E.
, p. 314 - 324 (2007/10/02)
1,2,2-Trifluoroethylidene, generated by the pyrolysis of (1,1,2,2-tetrafluoroethyl)trifluorosilane, reacts with tetrafluoroethylene, ethylene, and a series of methyl-substituted ethylenes to give the corresponding 1-fluoro-1-difluoromethylcyclopropanes in good yield; cyclohexene gives the corresponding norcarane, and tris(trifluoromethyl)phosphine gives the corresponding phosphorane (CF3)3P(+)-C(-)F-CHF2.Pyrolysis of 1,2,2,3,3-pentafluoro-1-difluoromethylcyclopropane affords difluorocarbene and 3H-pentafluoropropene, but pyrolysis of the methyl-substituted cyclopropanes results in the formation of dienes in high yield, e.g. the 1,4-dienes CHF=CF-CMeR-CMe=CH2 from the cyclopropanes (R = H or Me) or 1,3-dienes from the methyl-substituted cyclopropanes, e.g. --> CH2=CMe-C(CHF2)=CH2.In certain cases further dehydrofluorination of the 1,3-dienes affords trienes, e.g. --> CH2=CMe-C(=CHF)-CMe=CH2.
