MOLYBDENUM (III) CHLORIDE
Synonym(s):Molybdenum trichloride;Trichloromolybdenum
- CAS NO.：13478-18-7
- Empirical Formula: Cl3Mo
- Molecular Weight: 202.3
- MDL number: MFCD00014214
- EINECS: 236-775-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-27 22:40:28
What is MOLYBDENUM (III) CHLORIDE?
Chemical properties
-100 mesh with 99.5% purity; purple crystal(s) [STR93] [CER91]
The Uses of MOLYBDENUM (III) CHLORIDE
Molybdenum(III) chloride reacts with tetrahydrothiophene to form complexes, which catalyze the polymerization and cyclotrimerization of alkynes.
Definition
ChEBI: Molybdenum trichloride is a molybdenum halide.
Purification Methods
Boil it with 12M HCl, wash it with absolute EtOH and dry it in a vacuum desiccator. It is a brown-red powder soluble in H2O, EtOH or Et2O and gives a blue solution in conc H2SO4. [Hein & Herzog Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II p 1404 1965.]
Properties of MOLYBDENUM (III) CHLORIDE
| Melting point: | 1027°C |
| Density | 3.58 g/mL at 25 °C(lit.) |
| solubility | H2O: insoluble(lit.) |
| form | Powder |
| color | Dark red |
| Specific Gravity | 3.59 |
| Water Solubility | Soluble in nitric acid and sulfuric acid. Insoluble in water and dilute hydrochloric acid. Slightly soluble in ethanol and diethyl ether. |
| Sensitive | Air & Moisture Sensitive |
| Exposure limits | ACGIH: TWA 0.5 mg/m3; TWA 10 mg/m3; TWA 3 mg/m3 NIOSH: IDLH 1000 mg/m3; IDLH 5000 mg/m3 |
| CAS DataBase Reference | 13478-18-7 |
| EPA Substance Registry System | Molybdenum chloride (MoCl3) (13478-18-7) |
Safety information for MOLYBDENUM (III) CHLORIDE
| Signal word | Warning |
| Pictogram(s) |
 Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation H315:Skin corrosion/irritation H318:Serious eye damage/eye irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for MOLYBDENUM (III) CHLORIDE
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