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1,1-dichloro-1,2,2,3,3,3-hexafluoropropane, also known as HCFC-225ca, is a colorless, odorless organic compound with the chemical formula C3Cl2F6. It is a halogenated hydrocarbon characterized by its high stability and significant environmental impact due to its ozone depletion potential and global warming potential. Classified as a hazardous substance, its production and use are being phased out under the Montreal Protocol to protect the ozone layer.

2729-28-4

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2729-28-4 Usage

Uses

Used in Electronics Industry:
1,1-dichloro-1,2,2,3,3,3-hexafluoropropane is used as a solvent in the electronics industry for its ability to dissolve various materials and facilitate manufacturing processes. However, due to its adverse environmental effects, it is being replaced by more environmentally friendly alternatives.
Used in Chemical Research:
In the field of chemical research, 1,1-dichloro-1,2,2,3,3,3-hexafluoropropane may be used as a reference compound or in the synthesis of other compounds. Its unique properties and reactivity can provide insights into the behavior of similar halogenated hydrocarbons.

Check Digit Verification of cas no

The CAS Registry Mumber 2729-28-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,7,2 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 2729-28:
(6*2)+(5*7)+(4*2)+(3*9)+(2*2)+(1*8)=94
94 % 10 = 4
So 2729-28-4 is a valid CAS Registry Number.
InChI:InChI=1/C3Cl2F6/c4-2(5,8)1(6,7)3(9,10)11

2729-28-4Relevant academic research and scientific papers

PROCESSES FOR THE SYNTHESIS OF 3-CHLOROPERFLUORO-2-PENTENE, OCTAFLUORO-2-PENTYNE, AND 1,1,1,4,4,5,5,5-OCTAFLUORO-2-PENTENE

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Page/Page column 14, (2009/07/18)

Disclosed is a process comprising reacting CF3CF2CCI2CF2CF3 (CFC-41 -10mca) with hydrogen in the presence of a dehalogenation catalyst to produce CF3CF2CCI=CFCF3 (CFC-1419myx). Also disclosed herein is a process comprising reacting CF3CF2CCI=CFCF3 (CFC- 1419myx) with hydrogen in the presence of a dehalogenation catalyst to produce CF3CF2C≡CCF3 (octafluoro-2-pentyne). Also disclosed herein is a process comprising reacting CF3CF2CCI2CF2CF3 (CFC-41 -10mca) with hydrogen in the presence of a dehalogenation catalyst to produce CF3CF2C≡CCF3 (octafluoro-2-pentyne). In addition, a process for reacting CF3CF2C≡CCF3, in a pressure vessel, with a Lindlar catalyst and hydrogen to produce CF3CF2CH=CHCF3 (1,1,1,4,4,5,5,5-octafluoro-2- pentene) is disclosed.

19F nuclear magnetic resonance studies of halogenated propanes

Tanuma, T.,Ohnishi, K.,Okamoto, H.,Miyajima, T.,Morikawa, S.

, p. 259 - 284 (2007/10/02)

The relationship between 19F chemical shifts in halogenated propanes and their structures are elucidated using MNDO calculations to determine the population of rotamers.The pairs of atom gauche to a fluorine atom and van der Waals interaction between the two terminal substituents are responsible for the 19F chemical shifts.The differences among chemical shifts in diastereomers are also discussed in terms of the conformation of molecule.

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