Diphenylmercury
Synonym(s):Mercury(II)diphenyl
- CAS NO.：587-85-9
- Empirical Formula: C12H10Hg
- Molecular Weight: 354.8
- MDL number: MFCD00002998
- EINECS: 209-606-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:20:23
What is Diphenylmercury?
Chemical properties
White to beige powder
Safety Profile
Moderately toxic by ingestion. Incompatible with nonmetal oxides. When heated to decomposition it emits toxic fumes of Hg. See also MERCURY COMPOUNDS.
Purification Methods
Sublime it, then crystallise it from nitromethane or ethanol. If phenylmercuric halides are present, they can be converted to phenylmercuric hydroxide which, being much more soluble, remain in the alcohol or *benzene used for crystallisation. Thus, crude material (10g) is dissolved in warm ethanol (ca 150mL) and shaken with moist Ag2O (ca 10g) for 30minutes, then heated under reflux for 30minutes and filtered hot. Concentrating the filtrate by evaporation gives diphenylmercury, which is then recrystallised from *benzene [Blair et al. J Chem Soc 3174 1959]. [Beilstein 16 IV 1702.] TOXIC.
Properties of Diphenylmercury
| Melting point: | 121-124 °C (lit.) |
| Boiling point: | >306°C |
| Density | 2.32 g/mL at 25 °C (lit.) |
| Flash point: | >306°C |
| storage temp. | Poison room |
| Water Solubility | Insoluble in water. |
| BRN | 637234 |
| Exposure limits | ACGIH: TWA 0.1 mg/m3 (Skin) NIOSH: IDLH 10 mg/m3; TWA 0.05 mg/m3; Ceiling 0.1 mg/m3 |
| CAS DataBase Reference | 587-85-9(CAS DataBase Reference) |
| EPA Substance Registry System | Mercury, diphenyl- (587-85-9) |
Safety information for Diphenylmercury
| Signal word | Danger |
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H300:Acute toxicity,oral H310:Acute toxicity,dermal H330:Acute toxicity,inhalation H373:Specific target organ toxicity, repeated exposure H400:Hazardous to the aquatic environment, acute hazard H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P260:Do not breathe dust/fume/gas/mist/vapours/spray. P262:Do not get in eyes, on skin, or on clothing. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P284:Wear respiratory protection. P320:Specific treatment is urgent (see … on this label). P330:Rinse mouth. P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P405:Store locked up. |
Computed Descriptors for Diphenylmercury
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