Chromic fluoride

Base Information

• Chemical Name: Chromic fluoride
• CAS No.: 7788-97-8
• Molecular Formula: CrF3
• Molecular Weight: 108.991
• Hs Code.: 28261990
• UN Number: 1756
• UNII: YK57ASE6UA
• Nikkaji Number: J95.206K
• Mol file: 7788-97-8.mol

Synonyms:Chromic fluoride;EINECS 232-137-9;UN1756;UN1757;chromium(3+) trifluoride;Cr-F3;Fluoruro de cromo (crf3);CHROMIC FLUORIDE [MI];Chromium(III) fluoride 4-hydrate;NA1756;NA1757;AKOS024438110;LS-53425;Chromic fluoride, solid [UN1756] [Corrosive];A839265

Chemical Property of Chromic fluoride

Chemical Property:

• Appearance/Colour: Green crystalline powder or crystals
• Vapor Pressure: 0Pa at 20℃
• Melting Point: >1000°C
• Boiling Point: 19.5oC at 760 mmHg
• PSA: 0.00000
• Density: 3.8 g/mL at 25 °C(lit.)
• LogP: -8.98800
• Sensitive.: Hygroscopic
• Water Solubility.: insoluble H2O; soluble HCl, violet color [MER06]
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 0
• Exact Mass: 108.935714
• Heavy Atom Count: 4
• Complexity: 0

Purity/Quality:

99% ^*data from raw suppliers

Chromium(III)fluoride ^*data from reagent suppliers

Safty Information:

• Pictogram(s): C
• Hazard Codes: C
• Statements: 20/21/22-31-34
• Safety Statements: 26-27-28-36/37/39-45

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: [F-].[F-].[F-].[Cr+3]
• Uses: Some important uses are in printing and dyeing woolens; mothproofing of woolen materials; metal polishing; coloring marbles; and as a catalyst in halogenation reactions. Used in the preparation of a mixed-metal fluoride catalyst for synthesis of HFC-134a. Printing and dyeing woolens, moth-proofing, halogenation catalyst.
• Physical properties: Dark green needles (anhydrous salt) or green hexagonal crystals (trihydrate); density 3.8 g/cm3 (anhydrous fluoride), 2.2 g/cm3 (trihydrate); anhydrous salt melts at 1,100°C and sublimes above this temperature; practically insoluble in water and ethanol (anhydrous salt); trihydrate sparingly soluble in water; soluble in HCl forming a violet solution.

Technology Process of Chromic fluoride

There total 44 articles about Chromic fluoride which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

chromium(III) oxide + halon-1211 (353-59-3) → chromium(III) fluoride (7788-97-8) + chlorotrifluoromethane (75-72-9) + Bromotrifluoromethane (75-63-8) + chromium(III) chloride (10025-73-7,16284-59-6) + chromium(III) bromide (10031-25-1)

Guidance literature:

In neat (no solvent); decomposition at 500°C on heating in a closed tube; further products;;

Reference yield:

XeCrF6 → xenon difluoride (13709-36-9) + chromium(III) fluoride (7788-97-8) + xenon tetrafluoride (13709-61-0)

Guidance literature:

In neat (no solvent); warming up to 100°C in a dynamic vac.; the decompn. starts at about 40°C;

Reference yield:

chromium(III) chloride (10025-73-7,16284-59-6) → chromium(III) fluoride (7788-97-8)

Guidance literature:

With hydrogen fluoride; In neat (no solvent); react. with gaseous HF at dark red heat;;

upstream raw materials:

hydrogen fluoride

H⁽¹⁺⁾*HF₂^(1-)=H₂F₂

chromium

chromium(III) chloride

Downstream raw materials:

lanthanum(III) fluoride

chromium

hydrogen fluoride

magnesium fluoride

Refernces

• 1、 Uì?nveren, Ercan,Kemnitz, Erhard,Lippitz, Andreas,Unger, Wolfgang E. S.. "Surface characterization of chromia for chlorine/fluorine exchange reactions". . p. 1903 - 1913. Retrieved 2005.
• 2、 Goryacheva,Rakov,Solov'ev. "Reactivity of Tin Difluoride". . p. 949 - 952. Retrieved 2008/10/08.