Products Description of Molybdenum Trioxide CAS#1313-27-5
Molybdenum trioxide is an inorganic compound with the molecular formula MoO₃. It is primarily used for the determination of substances such as proteins, phenols, arsenic, lead, and bismuth. In addition, it serves as a reducing agent for compounds including phosphorus pentoxide, arsenic trioxide, hydrogen peroxide, phenols, and alcohols. It is also an important raw material for the production of molybdenum salts and molybdenum alloys.
On October 27, 2017, the International Agency for Research on Cancer (IARC) under the World Health Organization released a reference list of carcinogens, in which molybdenum trioxide was classified as a Group 2B carcinogen.
Molybdenum trioxide Chemical Properties
| Melting point |
795 °C(lit.) |
| Boiling point |
1155 °C |
| density |
4.692 |
| vapor pressure |
0Pa at 20℃ |
| Fp |
1155°C subl. |
| storage temp. |
Store at +5°C to +30°C. |
| solubility |
0.49g/l |
| form |
Sublimed Powder |
| Specific Gravity |
4.69 |
| color |
White to gray |
| Water Solubility |
0.5 g/L (20 ºC) |
| Merck |
146,239 |
| Exposure limits |
ACGIH: TWA 10 mg/m3; TWA 3 mg/m3 |
| NIOSH: IDLH 5000 mg/m3 |
| InChIKey |
JKQOBWVOAYFWKG-UHFFFAOYSA-N |
| CAS DataBase Reference |
1313-27-5(CAS DataBase Reference) |
| NIST Chemistry Reference |
Molybdenum(vi) oxide(1313-27-5) |
| IARC |
2B (Vol. 118) 2018 |
| EPA Substance Registry System |
Molybdenum trioxide (1313-27-5) |
Safety Information
| Hazard Codes |
Xn,Xi |
| Risk Statements |
36/37-48/20/22-40 |
| Safety Statements |
22-23-25-36/37 |
| WGK Germany |
1 |
| RTECS |
QA4725000 |
| TSCA |
Yes |
| HazardClass |
6.1 |
| HS Code |
28257000 |
| Hazardous Substances Data |
1313-27-5(Hazardous Substances Data) |
| Toxicity |
LD50 orally in Rabbit: 2689 mg/kg LD50 dermal Rat > 2000 mg/kg |
Product Application of Molybdenum Trioxide CAS#1313-27-5
Molybdenum trioxide is used for colorimetric analysis of blood glucose, proteins, phenols, arsenic, lead, bismuth, and related substances, as well as for alkaloid detection. It also serves as a catalyst in the petroleum industry and as a raw material for producing molybdenum salts and molybdenum alloys. Additionally, it functions as a reducing agent for phosphorus pentoxide, arsenic trioxide, hydrogen peroxide, phenols, and alcohols. High-purity molybdenum trioxide is applied in the reduction of molybdenum powder and is widely used as a fission catalyst, hydrogenation catalyst, pigment, and in the manufacture of ceramics and glass.
