Chromium(III) fluoride

ChemicalBook > CAS DataBase List > Chromium(III) fluoride

Chromium(III) fluoride

Chemical Properties Uses Preparation

Product Name: Chromium(III) fluoride
CAS No.: 7788-97-8
Chemical Name: Chromium(III) fluoride
Synonyms: CrF3;Fluorchrome;Chromfluorid;Chrome fluorure;CHROMIC FLUORIDE;CHROMIUM FLUORIDE;Fluoride chromium;Chromic trifluoride;CHROMIUM TRIFLUORIDE;chromicfluoride,solid
CBNumber: CB8230982
Molecular Formula: CrF3
Formula Weight: 108.99
MOL File: 7788-97-8.mol

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Chromium(III) fluoride Property

Melting point:: >1000°C
Density: 3.8 g/mL at 25 °C(lit.)
vapor pressure: 0Pa at 20℃
solubility: insoluble in H2O, ethanol
form: powder
color: Green
Water Solubility: insoluble H2O; soluble HCl, violet color [MER06]
Sensitive: Hygroscopic
Merck: 14,2223
Exposure limits: ACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3; IDLH 25 mg/m3; TWA 0.5 mg/m3
LogP: -2 at 20℃
CAS DataBase Reference: 7788-97-8(CAS DataBase Reference)
EPA Substance Registry System: Chromium fluoride (CrF3) (7788-97-8)

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Safety

Hazard Codes: C
Risk Statements: 20/21/22-31-34
Safety Statements: 26-27-28-36/37/39-45
RIDADR: UN 1756 8/PG 2
WGK Germany: 3
RTECS: GB6125000
Hazard Note: Corrosive
TSCA: Yes
HazardClass: 8
PackingGroup: II
HS Code: 28261990

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H302Harmful if swallowed

H312Harmful in contact with skin

H314Causes severe skin burns and eye damage

H318Causes serious eye damage

H332Harmful if inhaled

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P330+P331IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

Alfa Aesar

Product number: 035741
Product name: Chromium(III) fluoride, 99.98% (metals basis)
Packaging: 2g
Price: $161
Updated: 2024/03/01

Alfa Aesar

Product number: 035741
Product name: Chromium(III) fluoride, 99.98% (metals basis)
Packaging: 10g
Price: $618.65
Updated: 2024/03/01

Strem Chemicals

Product number: 93-2434
Product name: Chromium(III) fluoride, anhydrous, 98%
Packaging: 1g
Price: $44
Updated: 2024/03/01

Strem Chemicals

Product number: 93-2434
Product name: Chromium(III) fluoride, anhydrous, 98%
Packaging: 5g
Price: $172
Updated: 2024/03/01

Strem Chemicals

Product number: 93-2434
Product name: Chromium(III) fluoride, anhydrous, 98%
Packaging: 25g
Price: $690
Updated: 2024/03/01

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Chromium(III) fluoride Chemical Properties,Usage,Production

Chemical Properties

Chromium(III) fluoride [7788-97-8], CrF3, Mr 108.99. The anhydrous compound forms highly refractive rhombohedral crystals. It melts above 1000°C and is distinctly volatile between 1100 and 1200 °C. Chromium(III) fluoride is insoluble in water if no divalent chromium is present. Double compounds are formed with other metal fluorides, e.g., green CrF3 · 2KF·H2O.

Hydrates are known which contain three [16671-27-5] to nine [68374-27-6] molecules of water. The violet hexaaquochromium(III) fluoride, [Cr(H2O)6]F3, and its trihydrate, [Cr(H2O)6]F3 · 3H2O, can be obtained from hexaaquochromium(III) salt solutions and alkali fluorides. Products containing lesswater are green. The composition of the industrial product corresponds approximately to CrF3 · 3.5H2O and the product contains about 30 % chromium.
For the production of chromium(III) fluoride hydrate, chromium(III) oxide hydrate is dissolved in hot aqueous hydrofluoric acid and the green salt crystallizes. Chromium(III) fluoride is used in the textile industry for mordanting wool, for chromating dyestuffs, and in vigoureux printing. Chromium(III) fluorides have also found application in rust-prevention paints as corrosion inhibitors.

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.

Preparation

Chromium(III) fluoride may be prepared by heating chromium trichloride under a stream of hydrogen fluoride:

The compound may be prepared by the reaction of chromium hydroxide with hydrofluoric acid:

Chemical Properties

Green crystalline powder or crystals

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.

Uses

Used in the preparation of a mixed-metal fluoride catalyst for synthesis of HFC-134a.

Uses

Printing and dyeing woolens, moth-proofing, halogenation catalyst.

General Description

Chromic fluoride solution is a green crystalline solid dissolved in water. CHROMIUM(III) FLUORIDE is corrosive to metals and tissue.

Air & Water Reactions

Water soluble.

Reactivity Profile

Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas.

Hazard

Irritant to skin and eyes, especially in solution.

Health Hazard

TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

Fire Hazard

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.

Flammability and Explosibility

Not classified

Safety Profile

A poison by ingestion. A corrosive. When heated to decomposition it emits toxic vapors of Cr and F-.

Chromium(III) fluoride Preparation Products And Raw materials

Raw materials

ChroMiuM hydroxide Hydrogen fluoride

Preparation Products

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View Lastest Price from Chromium(III) fluoride manufacturers

Zhuozhou Wenxi import and Export Co., Ltd

Product: CHROMIUM(III) FLUORIDE 7788-97-8
Price: US $15.00-10.00/KG
Min. Order: 1KG
Purity: 99%+ HPLC
Supply Ability: Monthly supply of 1 ton
Release date: 2021-07-10

Zhuozhou Wenxi import and Export Co., Ltd

Product: CHROMIUM(III) FLUORIDE 7788-97-8
Price: US $15.00-10.00/KG
Min. Order: 1KG
Purity: 99%+ HPLC
Supply Ability: Monthly supply of 1 ton
Release date: 2021-07-09

Zhuozhou Wenxi import and Export Co., Ltd

Product: CHROMIUM(III) FLUORIDE 7788-97-8
Price: US $15.00-10.00/KG
Min. Order: 1KG
Purity: 99%+ HPLC
Supply Ability: Monthly supply of 1 ton
Release date: 2021-06-27

7788-97-8, Chromium(III) fluorideRelated Search:

Magnesium fluoride Hydrogen fluoride Sodium hydrogen difluoride Calcium fluoride Ammonium fluoride Ammonium hydrogen difluoride Magnesium hydride IRON (II) FLUORIDE Titanous chloride Chromic nitrate Nickel fluoride Fluorine Chromium(III) Fluoride Tetrahydrate Chromium(III) fluoride trihydrate 98%,CHROMIUM(III) FLUORIDE TRIHYDRATE,CHROMIUM (III) FLUORIDE HYDRATE,CHROMIUM(III)FLUORIDE, HYDRATED Chromium fluoride (CrF2) CHROMIUM(III) FLUORIDE TETRAHYDRATE,chromium fluoride tetrahydrate,Chromium(Ⅲ) fluoride tetrahydrate POTASSIUM CHROMIUM FLUORIDE CHROMIUM(III) FLUORIDE, ANHYDROUS

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Chromium(III) fluoride, 99.98% trace metals basis

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CHROMIUM(III) FLUORIDE

Chromium(III) fluoride ISO 9001：2015 REACH

Fluoride chromium

7788-97-8

10048-10-2

Cr3F

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metal halide