Molybdenum(IV) oxide
Molybdenum(IV) oxide
- CAS:
- 18868-43-4
- MF:
- MoO2
- MW:
- 127.94
Suppliers by country/region
Company Type
Properties
- Melting point:
- decomposes [JAN85]
- Density
- 6.47 g/mL at 25 °C (lit.)
- solubility
- insoluble in H2O, acid solutions, alkaline solutions
- form
- Powder
- color
- Red-brown
- Specific Gravity
- 6.47
- Water Solubility
- slightly soluble H2SO4; insoluble HCl, HF, and alkalies [HAW93]
- Exposure limits
- ACGIH: TWA 10 mg/m3; TWA 3 mg/m3
NIOSH: IDLH 5000 mg/m3
- InChIKey
- QXYJCZRRLLQGCR-UHFFFAOYSA-N
Safety Information
- Symbol(GHS)
GHS07
- Signal word
- Warning
- Hazard statements
- H315-H319
- Precautionary statements
- P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313
- Hazard Codes
- Xn
- Risk Statements
- 20/21/22-36/37/38
- Safety Statements
- 26-36
- WGK Germany
- 1
- RTECS
- QA4688000
- TSCA
- Yes
- HS Code
- 28257000
- Toxicity
- mouse,LD50,subcutaneous,318mg/kg (318mg/kg),Zhurnal Vsesoyuznogo Khimicheskogo Obshchestva im. D.I. Mendeleeva. Journal of the D.I. Mendeleeva All-Union Chemical Society. Vol. 19, Pg. 186, 1974.
Use
Molybdenum(IV) oxide can be prepared by several methods including controlled oxidation of Mo and controlled reduction of MoO3 with hydrogen. The pure oxide suitable for structure determination has been prepared by electrolysis of a polymolybdate (K2O5.MoO3) solution. Molybdenum(IV) oxide is insoluble in water: it is inert in solutions of nonoxidizing acids or bases, but is dissolved by oxidizing solutions. It dissociates to Mo and MoO3 at high temperatures (~ 1100).Crystalline MoO2 is violet or brown. Its deformed rutile structure consists of infinite chains of MoO6 octahedra sharing opposite edges along the chain direction with Mo-Mo distances alternately long (3.10 A) and short (2.50 A). It is diamagnetic and semiconducting ; metal-metal bonds are present. Some of its thermodynamic properties are as follows: Gf29% ~ 172.415 kcal/mole Hf29% -140.5 kcal/mole S298 11.954 gibbs/mole.
0 India supplier list of "Molybdenum(IV) oxide"
![](/images/pro-3.jpg)
- Product Name:Molybdenum(IV)oxide
- Products Intro:Brand:sigma aldrich | Product Number:234761 | Purity:99%
- Company Type: Trader
- Country/Region: Bangalore,INDIA
- Product Name:Molybdenum(IV) oxide
- Products Intro:Purity: 99% | Package: 1KG;50USD
- Company Type: Service provider
- Country/Region: CHINA
- Main Products: carbomer,lead acetate,phenylacetamide,Xylazine,Xylazine hcl
$50.00/ 1KG
- Product Name:Molybdenum(IV) oxide
- Products Intro:Purity: 97%-99% | Package: 1KG;8.8USD
- Company Type: Reagent
- Country/Region: CHINA
- Main Products: Nicotinamide riboside chloride,Curcumin,L(+)-Ascorbic acid,L-Glutamine,Stevioside Basic information
$8.80/ 1KG
- Product Name:Molybdenum(IV) oxide
- Products Intro:Purity: 99% | Package: 1KG;10USD
- Company Type: Trader
- Country/Region: CHINA
- Main Products: DHA,4'-Methylpropiophenone,Procaine hcl,tetramisole hcl,lidocaine
$10.00/ 1KG
- Product Name:Molybdenum(IV) oxide
- Company Type: Reagent
- Country/Region: CHINA
- Main Products: Gamma-butyrolactone