428-92-2 Usage
Uses
Used in Refrigeration Industry:
HCFC-133a is used as a refrigerant in various cooling systems, such as air conditioning units and refrigeration equipment. It is chosen for its relatively low global warming potential compared to other HCFCs, making it a more environmentally friendly option.
Used in Foam Insulation Production:
In the manufacturing of foam insulation, HCFC-133a serves as a blowing agent, which helps create the desired cellular structure and insulation properties. Its use in this application is due to its effectiveness in producing lightweight and efficient insulation materials.
Used in Environmental Regulations:
HCFC-133a is regulated under the Montreal Protocol as a substance with potential ozone-depleting effects. Efforts are being made to phase out its use and transition to more environmentally friendly alternatives, such as hydrofluorocarbons (HFCs) and natural refrigerants, to minimize the impact on the ozone layer and reduce global warming potential.
Check Digit Verification of cas no
The CAS Registry Mumber 428-92-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,2 and 8 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 428-92:
(5*4)+(4*2)+(3*8)+(2*9)+(1*2)=72
72 % 10 = 2
So 428-92-2 is a valid CAS Registry Number.
InChI:InChI=1/C3H3Cl2F3O/c4-1-9-3(7,8)2(5)6/h2H,1H2
428-92-2Relevant academic research and scientific papers
RADICAL REDUCTION OF C-Cl BONDS IN CHLOROFLUORO ETHERS
Liska, Frantisek,Fikar, Jiri,Kuzmic, Petr
, p. 565 - 574 (2007/10/02)
Reduction of C-Cl bonds in 2,2-dichloro-1,1,2-trifluoroethyl trichloromethyl ether (I), 2-chloro-1,1,2-trifluoroethyl trichloromethyl ether (II), and 2,2-dichloro-1,1,2-trifluoroethyl dichloromethyl ether (III) with 2-propanol, 2-butanol, cyclohexanol, tetrahydrofuran, diethyl ether, and 1,3-dioxolane initiated photochemically and by radiation has been investigated.Beside the main reduction products - 2-chloro-1,1,2-trifluoroethyl dichloromethyl ether (IV) and 2-chloro-1,1,2-trifluoroethyl chloromethyl ether (V) - it was also possible to prove the formation of 1,2-dichloro-1,2-bis(2-chloro-1,1,2-trifluoroethoxyethane) (VI), 1-chloro-1,2-bis(2-chloro-1,1,2-trifluoroethoxy)ethene (VII), and 1,2-dichloro-1,2-bis(2-chloro-1,1,2-trifluoroethoxy)ethene (VIII).The structure of products was confirmed by elemental analysis, MS, IR, 1H NMR and 19F NMR spectra and by GLC comparison of the elution times with those of the standards.The relative reduction ability of the solvents used and the reduction rate order of C-Cl bonds in the compounds (CCl3 > CFCl2 > CHCl2 and CFClH) are given.
