918-21-8

Basic information

• Product Name: HEXAFLUORO-2,3-BIS(TRIFLUOROMETHYL)BUTANE-2,3-DIOL
• Synonyms: 2,3-bis(trifluoromethyl)-1,1,1,4,4,4-hexafluoro-2,3-butanediol;2,3-bis(trifluoromethyl)-1,1,1,4,4,4-hexafluoro-3-butanediol;HEXAFLUORO-2,3-BIS(TRIFLUOROMETHYL)-2,3-BUTANEDIOL;HEXAFLUORO-2,3-BIS(TRIFLUOROMETHYL)BUTANE-2,3-DIOL;PERFLUOROPINACOL;HEXAFLUORO-2,3-BIS(TRIFLUOROMETHYL)-2,3&;HEXAFLUORO-2,3-DIMETHYLBUTANE-2,3-DIOL;1,1,1,4,4,4-Hexafluoro-2,3-bis(trifluoromethyl)-2,3-butanediol
• CAS NO: 918-21-8
• Molecular Formula: C₆H₂F₁₂O₂
• Molecular Weight: 334.06
• Mol File: 918-21-8.mol
• Article Data: 7

Chemical Properties

• Melting Point: 18 °C
• Boiling Point: 129 °C
• Flash Point: 183.5 °C
• Appearance: /
• Density: 1.870 g/mL at 25 °C
• Vapor Pressure: 2.49E-07mmHg at 25°C
• Refractive Index: 1.3102
• Storage Temp.: Sealed in dry,Room Temperature
• PKA: 7.56±0.29(Predicted)
• CAS DataBase Reference: HEXAFLUORO-2,3-BIS(TRIFLUOROMETHYL)BUTANE-2,3-DIOL(CAS DataBase Reference)
• NIST Chemistry Reference: HEXAFLUORO-2,3-BIS(TRIFLUOROMETHYL)BUTANE-2,3-DIOL(918-21-8)
• EPA Substance Registry System: HEXAFLUORO-2,3-BIS(TRIFLUOROMETHYL)BUTANE-2,3-DIOL(918-21-8)

Safety Data

• Hazard Codes: Xi,Xn,T+
• Statements: 20/21/22-36/37/38-22-27-20/22
• Safety Statements: 26-36/37/39-45-36/37-28
• RIDADR: UN 2810 6.1 / PGI
• WGK Germany: 3
• RTECS: EK0650000
• HazardClass: IRRITANT
• Hazardous Substances Data: 918-21-8(Hazardous Substances Data)

Usage

Chemical Properties

Colorless liquid

InChI:InChI=1/C6H2F12O2/c7-3(8,9)1(19,4(10,11)12)2(20,5(13,14)15)6(16,17)18/h19-20H

Upstream product

• 920-66-1 1,1,1,3',3',3'-hexafluoro-propanol 
• 684-16-2 Hexafluoroacetone 
• 87779-55-3 pp-diphenyl-p-tetrakis (perfluoromethyl)ethylene glycol phosphinate 
• 360-57-6 1,1,1,4,4,4-hexafluoro-2,3-bis-trifluoromethyl-but-2-ene 
• 1708-77-6 1,1,1-Triethoxy-3,3,4,4-tetrakis-trifluormethyl-<1,2,5>-phosphadioxolan 
• 764612-94-4 C₁₂F₂₄O₄P^(1-) 

Downstream Products

• 69305-36-8 7,8-dimethyl-5-phenyl-2,2,3,3-tetrakis-trifluoromethyl-1,4-dioxa-5λ⁵-phospha-spiro[4.4]non-7-ene 
• 54656-58-5 C₁₈H₅Cl₄F₁₂O₅P 
• 1430818-00-0 1,2-bis[4,4,5,5-tetrakis(trifluoromethyl)-1,3,2-dioxaborolan-2-yl]benzene 
• 365458-39-5 2-(3,5-difluorophenyl)-4,4,5,5-tetrakis(trifluoromethyl)-1,3,2-dioxaborolane 
• 365458-40-8 2-(pentafluorophenyl)-4,4,5,5-tetrakis(trifluoromethyl)-1,3,2-dioxaborolane 
• 104068-72-6 2-methyl-2,2-diphenyl-4,4,5,5-tetrakis-trifluoromethyl-2λ⁵-[1,3,2]dioxaphospholane 
• 6509-85-9 2,2,2-triphenyl-4,4,5,5-tetrakis-trifluoromethyl-2λ⁵-[1,3,2]dioxaphospholane 

Relevant articles and documents

Fluorinated diols from the mercury-photosensitized dehydrodimerization of fluorinated alcohols in the vapour phase

Several fluorinated diols were synthesized from commercially available fluorinated alcohols via mercury-photosensitized dehydrodimerization in the vapour phase. In almost all cases, the corresponding dl- and meso-diols were obtained in a 50 : 50 ratio. Field-ionization (FI) and field-desorption (FD) mass spectrometry proved effective as an analytical method for these diols. The nuclear magnetic resonance (NMR) characteristics of the symmetrically substituted diols depend strongly on their stereochemical nature (dl- and meso-diastereoisomers) and substituents. The presence of the -CF2H end group, as in 1,1,4,4-tetrafluoro-2,3-butanediol and 1,1,2,2,5,5,6,6-octafluoro-3,4-hexanediol, causes an additional inequivalence in the meso-form due to molecular asymmetry. The 1H and 19F NMR spectra of 1,1,4,4-tetrafluoro-2,3-butanediol and the 19F NMR spectrum of 1,1,2,2,5,5,6,6-octafluoro-3,4-hexanediol have been fully interpreted.

THE CHEMISTRY OF A PHOSPHORANIDE ANION, STABILIZED BY THE PERFLUOROPINACOLYL GROUPING

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REDUCTIVE DEFLUORINATION OF HEXAFLUOROACETONE AND THE SYNTHESIS OF HALOPENTAFLUOROACETONES

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PARTIAL OXIDATION OF INTERNAL FLUOROOLEFINS BY POTASSIUM PERMANGANATE

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