| Identification | More | [Name]
MERCURY(I) FLUORIDE | [CAS]
13967-25-4 | [Synonyms]
MERCUROUS FLUORIDE
MERCURY(I) FLUORIDE
Mercuryfluoride1
dimercury difluoride
MERCURY(I) FLUORIDE, TECH.
MERCURY(I) FLUORIDE 97%
Mercury(I)fluoride,95+%
Mercury(I)fluoride98%
Mercury(I) fluoride, 97% min
Fluoromercurio(II)mercury(II) fluoride | [EINECS(EC#)]
237-747-9 | [Molecular Formula]
F2Hg2 | [MDL Number]
MFCD00016136 | [Molecular Weight]
439.18 | [MOL File]
13967-25-4.mol |
| Chemical Properties | Back Directory | [Melting point ]
570°C | [Boiling point ]
decomposes at 570℃ [MER06] | [density ]
8.73 g/mL at 25 °C(lit.)
| [solubility ]
reacts with H2O | [form ]
Powder | [color ]
white | [Specific Gravity]
8.73 | [Water Solubility ]
Hydrolyzes in water | [Solubility Product Constant (Ksp)]
pKsp: 5.51 | [Exposure limits]
ACGIH: TWA 0.025 mg/m3; TWA 2.5 mg/m3 (Skin)
NIOSH: IDLH 10 mg/m3; IDLH 250 mg/m3; TWA 0.05 mg/m3; TWA 2.5 mg/m3; Ceiling 0.1 mg/m3 | [CAS DataBase Reference]
13967-25-4(CAS DataBase Reference) |
| Hazard Information | Back Directory | [Chemical Properties]
small, yellow cub crystal(s); blackens in light; preparation by reaction of Hg2CO3 and HF [MER06] | [Description]
Mercury(I) fluoride or mercurous fluoride, Hg2F2, consists of small yellow cubic crystals, which turn black when
exposed to light. Mercury(I) fluoride is formed by the reaction of mercury(I) carbonate with hydrofluoric acid.
Hg2CO3 + 2HF→Hg2F2 +CO2 +H2O | [Uses]
Mercury(I) fluoride is used as antiseptic. It is used in the Swarts reaction to convert alkyl halides into alkyl fluorides. |
| Safety Data | Back Directory | [Hazard Codes ]
T+,N,T | [Risk Statements ]
R26/27/28:Very Toxic by inhalation, in contact with skin and if swallowed .
R33:Danger of cumulative effects.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | [Safety Statements ]
S13:Keep away from food, drink and animal feeding stuffs .
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [RIDADR ]
UN 2025 6.1/PG 2
| [WGK Germany ]
3
| [Hazard Note ]
Toxic | [HazardClass ]
6.1 | [PackingGroup ]
II |
|
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