662-35-1 Usage
General Description
1,1,1,2,2,3,3,4-Octafluorobutane is a chemical compound with the molecular formula C4F8. It is a colorless, odorless, and nonflammable gas that is primarily used as a refrigerant in air conditioning and cooling systems. It has high thermal stability and low toxicity, making it a suitable substitute for ozone-depleting refrigerants such as chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs). Octafluorobutane is also used as a blowing agent in the production of foam insulation and as a propellant in aerosol products. However, it is classified as a greenhouse gas with a high global warming potential, and its use is regulated under the Montreal Protocol due to its contribution to ozone depletion and climate change.
Check Digit Verification of cas no
The CAS Registry Mumber 662-35-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,6 and 2 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 662-35:
(5*6)+(4*6)+(3*2)+(2*3)+(1*5)=71
71 % 10 = 1
So 662-35-1 is a valid CAS Registry Number.
InChI:InChI=1/C4H2F8/c5-1-2(6,7)3(8,9)4(10,11)12/h1H2
662-35-1Relevant articles and documents
THE FLUORINATION OF BUTANE OVER COBALT TRIFLUORIDE
Burdon, James,Ezmirly, Saleh T.,Huckerby, Thomas N.
, p. 283 - 318 (2007/10/02)
The fluorination of butane over cobalt trifluoride has given a complex mixture of partially fluorinated compounds: 51 of these have been identified, comprising over 99percent of the products.Most were polyfluor-butanes but 1-2percent were polyfluoro-2-methylpropanes.The reaction has no synthetic utility.There was some selectivity in the fluorination: secondary C-H was convertart byed into C-F more easily then primary, and the ease of replacement of a particular H was reduced by geminal vicinal fluorines.A computer model of the fluorination was only partially successful, perhaps because the fluorination proceeded in part by simple F for H replacement and in part via alkenes: the model only allowed for the former.
