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2 edition of Hydrogen fluoride and the thermochemistry of fluorine found in the catalog.

Hydrogen fluoride and the thermochemistry of fluorine

George Thomson Armstrong

Hydrogen fluoride and the thermochemistry of fluorine

by George Thomson Armstrong

  • 317 Want to read
  • 40 Currently reading

Published by U.S. Govt. Print. Off. in Washington .
Written in English

    Subjects:
  • Hydrogen fluoride -- Thermochemistry,
  • Fluorine -- Thermochemistry,
  • Dissociation,
  • Thermochemistry

  • Edition Notes

    Bibliography: 14-16

    SeriesU. S. National Bureau of Standards. Technical note -- 513
    The Physical Object
    Pagination19 p.
    Number of Pages19
    ID Numbers
    Open LibraryOL18144077M

    The X-ray data reinforces the conclusion that C(sp 3) F fluorine is a better hydrogen bond acceptor than C(sp 2) F fluorine. The C(sp 3) F H O bond is less than half the strength ( kcal mol −1) of a C O H O and the C(sp 2) F H O bond ( kcal mol −1) is about half as weak by: Anhydrous hydrogen fluoride containing less than about 3, parts per billion of arsenic is produced by distilling hydrogen fluoride at a pressure below 25 pounds per square inch absolute. USA - Process of recovering hydrogen fluoride free of arsenic by distillation - Google PatentsCited by: 4.

    Fluorine. See also what's at Wikipedia, your library, or elsewhere.. Broader terms: Halogens; Light elements; Narrower terms: Fluorine -- Physiological effect; Liquid fluorine; Filed under: Fluorine Pharmacology and toxicology of uranium compounds, with a section on the pharmacology and toxicology of fluorine and hydrogen fluoride; (New York, McGraw-Hill Book Co., ), by Carl Voegtlin. Fluorine - Fluorine - Production and use: Fluorspar is the most important source of fluorine. In the manufacture of hydrogen fluoride (HF), powdered fluorspar is distilled with concentrated sulfuric acid in a lead or cast-iron apparatus. During the distillation calcium sulfate (CaSO4) is formed, which is insoluble in HF. The hydrogen fluoride is obtained in a fairly anhydrous state by.

    1) This neutralization reaction forms hydrogen fluoride (HF), the conjugate acid of fluoride. In aqueous solution, fluoride has a p K b value of It is therefore a weak base, and tends to remain as the fluoride ion rather than generating a substantial amount of hydrogen fluoride. That is, the following equilibrium favours the left-hand side in water: F − + H 2 O Conjugate acid: Hydrogen fluoride. Cyanogen fluoride (molecular formula: FCN; IUPAC name: carbononitridic fluoride) is an inorganic linear compound which consists of a fluorine in a single bond with carbon, and a nitrogen in a triple bond with carbon. It is a toxic and explosive gas at room temperature. It is used in organic synthesis and can be produced by pyrolysis of cyanuric fluoride or by fluorination of g point: −46 °C (−51 °F; K).


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Hydrogen fluoride and the thermochemistry of fluorine by George Thomson Armstrong Download PDF EPUB FB2

Texts All Books All Texts latest This Just In Smithsonian Libraries FEDLINK (US) Genealogy Lincoln Collection. National Emergency Library. Top American Libraries Canadian Libraries Universal Library Community Texts Project Gutenberg Biodiversity Heritage Library Children's Library.

Open Library. Additional Physical Format: Online version: Armstrong, George T. Hydrogen fluoride and the thermochemistry of fluorine. Washington, U.S. Govt. Print. Pergamon Texts in Inorganic Chemistry, Volume 5: The Chemistry of Fluorine comprises a series Hydrogen fluoride and the thermochemistry of fluorine book reviews on the physical and chemical properties of fluorine compounds.

This book discusses the general properties of fluorine and fluorides; hydrogen fluoride solvent system; ionization in halogen fluorides; fluorides of main group elements; and.

Thermodynamic Properties of Hydrogen Fluoride and Fluorine from Spectroscopic Data J. Chem. Phys. 7, ( Bacher and Goudsmit, Atomic Energy States (McGraw‐Hill Book Co., New York, ). Thermochemistry of Chemical Substances (Reinhold, ).Cited by:   Purchase The Chemistry of Fluorine - 1st Edition.

Print Book & E-Book. ISBNBook Edition: 1. The book first discusses the general chemistry of fluorine compounds and the physical chemistry of fluorocarbons. Vapor pressures; details of interaction of polyatomic Book Edition: 1.

THERMOCHEMISTRY OF ORGANIC FLUORINE COMPOUNDS use of presently accepted values for the heat of formation of CO2(g.) H 20 (l.) and HF (in aqueous solution)5 and the value", ~H~98'15='3 kcal mole". for CF4, If the heat of vaporization has been determined, the heat of formation is given for the vapour state as well as for the.

Chemical shifts of fluorine in solutions of hydrogen fluoride, sodium fluoride, potassium fluoride, cesium fluoride, silver fluoride, silver bifluoride, ammonium bifluoride, and tetraethylammonium fluoride have been measured.

Hydrogen fluoride was dissolved in water and in aqueous and anhydrous organic solvents (methanol, ethylene glycol Cited by: Isothermal Compressibility Maxima of Hydrogen Fluoride in the Supercritical and Superheated Vapor Regions. The Journal of Physical Chemistry B(51), The chemical shifts of fluorine in solutions of anhydrous hydrogen fluoride in anhydrous organic solvents () approach the shifts found for anhydrous hydrogen fluoride () (Table I).

80 HO Et4NF H AqF 70 CsF 70 60 _- K I F AgFHF_ 6H4FHFt 50 {~~~~ LKF 2 ^ f t DMSO (CH2)4S02 ~ - (CH20H)2 MeCN DMF 30 20I 10 (CH20Me)2 Cited by: FLUORIDES, HYDROGEN FLUORIDE, AND FLUORINE 4.

CHEMICAL AND PHYSICAL INFORMATION Table Physical and Chemical Properties of Fluorine, Hydrogen Fluoride, Sodium Fluoride, Fluosilicic Acid, and Sodium Silicofluoridea Property Fluorine Hydrogen fluoride Sodium fluoride Molecular weight File Size: KB.

TABLE VIII SOME COMPLEX FLUORIDE MELTS STUDIED MASS SPECTROMETRICALLY ~~~~ ~ Fluoride BeF,- NaF BeF,- LiF AlF,- NaF GaF,- LiF Lanthanide trifluoride- NaF VFa-NaF Reference 17 25 24 7 THERMOCHEMISTRY OF INORGANIC FLUORINE COMPOUNDS 21 The stability of complex fluorides in molten salt solutions has also been widely by: FLUORIDE, TEETH, AND THE ATOMIC BOMB By Joel Griffiths and Chris Bryson.

Some fifty years after the United States began adding fluoride to public water supplies to reduce cavities in children's teeth, declassified government documents are shedding new light on the roots of that still-controversial public health measure, revealing a surprising connection between fluoride and the dawning of the.

Examines the chemical properties of fluorine, the forms in which it occurs in nature, and commercial and scientific uses of fluorine. Preview this book» What people are saying - Write a review5/5(1). CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Rotating-bomb calorimetry was first applied to organic compounds that contain chlorine, bromine, or sulphur.

Techniques developed for these classes of compounds, mostly at the University of Lund and at the Bureau of Mines in Bartlesville, have been described in the book Experimental Thermochemistry- The development. An ion cyclotron resonance determination of fluoride binding energetics to bronsted acids from gas-phase fluoride exchange equilibria measurements, J.

Chem. Soc., [ all data ] Heni and Illenberger, The History of Fluorine-From discovery to commodity Jaime Wisniak* Department of Chemical Engineering. Ben-Gurian University of the Negev. fluorine compounds seems to be in the books of George Agricola (), particularly in De Re problems of experimenting with fluorine and hydrogen fluoride and emphasizing the need to takeCited by: Hydrogen fluoride is a chemical compound with the chemical formula HF.

This colorless gas or liquid is the principal industrial source of fluorine, often as an aqueous solution called hydrofluoric acid. It is an important feedstock in the preparation of many important compounds including pharmaceuticals and polymers.

HF is widely used in the petrochemical industry as a component of superacids. Hydrogen fluoride boils near room temperature, much higher than other hydrogen halides. Hydrogen Chemical formula: HF. This book is a synthesis of two of Hudlicky's earlier books outlining the many unpredictable properties of fluorine and its compounds that are not analogous to the properties of any other halogens and their compounds.

It is divided into two separate sections, the first Cited by: 2. What is hydrogen fluoride. Hydrogen fluoride (HF) is a colorless gas or liquid that is made up of a hydrogen atom and a fluorine atom.

It creates strong fumes, readily dissolves in water, and both the liquid and gas will cause severe burns upon contact. The. Hazardous Material Description Hydrogen fluoride, anhydrous Haz.

Mat. Class, I.D.#, Packing Group 8, UNPG I, Poison – Inhalation Hazard Freight Classification Anhydrous Hydrofluoric Acid Principal CAS Number RQ lb. Placard Corrosive/Subsidiary – Poison Inhalation Hazard (toxic).Hydrogen fluoride is a corrosive, colorless gas that may fume in air (Budavari et al.

). Odor thresholds have been reported to range from to 3 ppm (HSDB ). Like hydrogen chloride, hydrogen fluoride is highly soluble in water. Hydrofluoric acid is the term used to describe aqueous solutions of hydrogen fluoride.From measurements of the heats of aqueous alkaline hydrolysis in 01 M-NaOH at 25 °C the standard enthalpies of formation of the following hexafluoroiodates are derived: ΔH f °[KIF 6, cryst.] =– ± 25 kJ mol –1 (–5 ± 06 kcal mol –1); ΔH f °[RbIF 6, cryst.] =– ± 2 kJ mol –1 (–1 ± 05 kcal mol –1); and ΔH f °[CsIF 6, cryst.] =– Cited by: 2.