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| CAS No.: | 7788-97-8 |
|---|---|
| Name: | CHROMIUM(III) FLUORIDE |
| Molecular Structure: | |
|
|
|
| Formula: | CrF3 |
| Molecular Weight: | 108.991 |
| Synonyms: | Chromicfluoride;Chromic trifluoride;Chromium trifluoride;Chromium(3+) fluoride;Chromium(III) fluoride; |
| EINECS: | 232-137-9 |
| Density: | 3.8 g/mL at 25 °C(lit.) |
| Melting Point: | >1000°C |
| Boiling Point: | 19.5oC at 760 mmHg |
| Solubility: | slightly soluble in water |
| Appearance: | Green crystalline powder or crystals |
| Hazard Symbols: |
 C
|
| Risk Codes: | 20/21/22-31-34 |
| Safety: | 26-27-28-36/37/39-45 |
| Transport Information: | UN 1756 8/PG 2 |
| PSA: | 0.00000 |
| LogP: | -8.98800 |
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Chemistry
Chemistry informtion about Chromium(III) Fluoride (CAS NO.7788-97-8) is:
IUPAC Name: Trifluorochromium
Synonyms: Chrome Fluorure ; Chromic Trifluoride ; Chromicfluoride,Solid ; Chromicfluoride,Solution ; Chromium Fluoride (Crf3) ; Crf3 ; Fluorchrome ; Chromium Trifluoride
MF: CrF3
MW: 108.99
EINECS: 232-137-9
Melting Point: >1000°C
Density: 3.8 g/mL at 25 °C(lit.)
Boiling Point: 19.5 °C at 760 mmHg
Vapour Pressure: 922 mmHg at 25°C
Enthalpy of Vaporization: 25.54 kJ/mol
Sensitive: Hygroscopic
Merck: 14,2223
Following is the molecular structure of Chromium(III) Fluoride (CAS NO.7788-97-8) is:
Uses
Chromium(III) Fluoride (CAS NO.7788-97-8) is mainly used in the colouration of limestone and silk. It's also used as a wood preservative; as a component of refractory bricks, abrasives and ceramics; and as a catalyst in hydrogenation, hydrogenolysis and many other organic conversion reactions.
Production
Chromium(III) Fluoride (CAS NO.7788-97-8) is produced from the reaction of Chromium(III) oxide and hydrofluoric acid.
Toxicity Data With Reference
| 1. | orl-gpg LDLo:150 mg/kg | YAKUD5 Gekkan Yakuji. Pharmaceuticals Monthly. 22 (1980),291. | ||
| 2. | scu-frg LDLo:420 mg/kg | CRSBAW Comptes Rendus des Seances de la Societe de Biologie et de Ses Filiales. 124 (1937),133. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
A poison by ingestion. A corrosive. When heated to decomposition it emits toxic vapors of Cr and F−.
Safty information about Chromium(III) Fluoride (CAS NO.7788-97-8) :
Hazard Codes:
C
Risk Statements:
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.
R31 :Contact with acids liberates toxic gas.
R34:Causes burns.
Safety Statements:
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S27:Take off immediately all contaminated clothing.
S28:After contact with skin, wash immediately with plenty of soap-suds.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: UN 1756 8/PG 2
WGK Germany: 3
RTECS: GB6125000
Hazard Note: Corrosive
HazardClass: 8
PackingGroup: II
Standards and Recommendations
OSHA PEL: 8H TWA 0.5 mg(Cr)/m3; TWA 2.5 mg(F)/m3
ACGIH TLV: TWA 0.5 mg(Cr)/m3; TWA 2.5 mg(F)/m3
NIOSH REL: (Fluorides, Inorganic) TWA 2.5 mg(F)/m3
DOT Classification: 8; Label: Corrosive
Specification
General description about Chromium(III) Fluoride (CAS NO.7788-97-8) ,it is a green crystalline solid dissolved in water. It is corrosive to metals and tissue. And it is soluble in water.
Reactivity Profile: Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas.
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.