677-68-9 Usage
Physical state
Colorless, odorless liquid
Molecular structure
Tetrachloro-tetrafluoro-propane
Primary uses
a. Refrigerant
b. Blowing agent in the production of foam materials
Chemical classification
Halogenated hydrocarbon
Composition
Contains chlorine and fluorine atoms
Boiling point
Low, suitable for refrigeration systems
Environmental impact
a. Potent greenhouse gas
b. Contributor to ozone depletion
Regulation status
Regulated and phased out in many countries due to environmental concerns
Additional classification
Volatile organic compound (VOC)
Environmental status
Potential environmental pollutant
Industry trend
Use is being gradually reduced in favor of more environmentally friendly alternatives
Check Digit Verification of cas no
The CAS Registry Mumber 677-68-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,7 and 7 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 677-68:
(5*6)+(4*7)+(3*7)+(2*6)+(1*8)=99
99 % 10 = 9
So 677-68-9 is a valid CAS Registry Number.
InChI:InChI=1/C3Cl4F4/c4-1(5,2(6,8)9)3(7,10)11
677-68-9Relevant articles and documents
PROCESS FOR PRODUCING FLUORINE-CONTAINING COMPOUND BY REARRANGEMENT REACTION
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Page/Page column 12, (2009/12/28)
The present invention provides a process for producing a compound represented by general formula (I): wherein X, Y and Z are same or different, and each represent H, F, Cl or an alkyl group, provided that the alkyl group and F are each not more than one; the process comprising contacting a fluorine-containing compound represented by general formula (II): wherein X, Y and Z are as defined above, with a Lewis acid catalyst to cause a chlorine rearrangement reaction. The present invention provides a novel reaction step, which can be used in the production process of a compound represented by the chemical formula CF3CF=CH2.
Thermal chlorofluorination of propyne and propadiene
Belter, Randolph K.
, p. 1611 - 1615 (2008/09/18)
Propyne and propadiene have been found to readily undergo vapor phase catalyzed chlorofluorination. At temperatures to 285 °C, the reaction forms mixtures of C3F4Cl4 isomers that differ in composition from mixtures obtained from either propane or propene.