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| CAS No.: | 20427-56-9 |
|---|---|
| Name: | RUTHENIUM TETROXIDE |
| Article Data: | 172 |
| Molecular Structure: | |
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| Formula: | O4Ru |
| Molecular Weight: | 165.068 |
| Synonyms: | ruthenium oxide;ruthenium tetraoxide;Ruthenium(VIII) oxide;Ruthenium tetroxide; |
| EINECS: | 243-813-8 |
| Density: | 3.290 |
| Melting Point: | 25.4 C |
| Boiling Point: | 40 C (other sources give 108 C; presumably40 C is at reduced pressure) |
| Solubility: | 2.03g/100mL H2O (20°C); very soluble CCl4, other chlorinated hydrocarbons [MER06] [KIR82] |
| Hazard Symbols: | Fire risk in contact with organic materials. |
| Safety: | A poison. Fumes are highly injurious to the eyes and mucous membranes. Handle in hood only. Flammable by chemical reaction with reducing agents. A powerful oxidizing agent. The liquid explodes above 106°C. Explosive reaction with hydriodic acid, charcoal, ethanol, cellulose fibers, other organic materials, sulfur. Violent reaction or ignition with ammonia. Vigorous reaction with phosphorus tribromide. When heated to decomposition it emits toxic fumes of RuOx. See also RUTHENIUM COMPOUNDS. |
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Chemistry
IUPAC Name: Tetraoxoruthenium
Synonyms: Ruthenium oxide (RuO4) ; Ruthenium oxide (RuO4), (T-4)- ; Ruthenium tetraoxide ; Ruthenium tetroxide
CAS NO: 20427-56-9
Molecular Formula of Ruthenium(VIII) oxide (CAS NO.20427-56-9) : O4Ru
Molecular Weight of Ruthenium(VIII) oxide (CAS NO.20427-56-9) : 165.07
Molecular Structure of Ruthenium(VIII) oxide (CAS NO.20427-56-9) : .png)
EINECS: 243-813-8
Storage temp: Refrigerator (+4°C)
Stability: Stable.
Appearance:Clear orange to gold colored solution
Solubility: not soluble in water and acid.
Uses
Ruthenium(VIII) oxide (CAS NO.20427-56-9) is used for thick-film resistors, potentiometers and other components in the electronics industry.
Production
Preparation Products: QUAZEPAM CIV (200 MG)
Raw materials: Oxygen-->Ruthenium-->Ruthenium dioxide
RuO4 is prepared by oxidation of ruthenium(III) chloride with NaIO4. In a typical reactions featuring RuO4 as the oxidant, many forms of ruthenium usefully serve as precursors to RuO4, such as oxide hydrates or hydrated chloride.
Because RuO4 will readily decompose explosively at slightly elevated temperatures, most laboratories do not synthesize it directly, nor is it commercially available through major chemical vendors. Most laboratories instead use an anionic derivative from a salt of "TPAP", or tetrapropylammonium perruthenate (Pr4N+ RuO4−). TPAP is synthesized by oxidizing RuCl3 to RuO4− by NaBrO3 and countering it with the tetrapropylamine cation.
Safety Profile
A poison. Fumes are highly injurious to the eyes and mucous membranes. Handle in hood only. Flammable by chemical reaction with reducing agents. A powerful oxidizing agent. The liquid explodes above 106°C. Explosive reaction with hydriodic acid, charcoal, ethanol, cellulose fibers, other organic materials, sulfur. Violent reaction or ignition with ammonia. Vigorous reaction with phosphorus tribromide. When heated to decomposition it emits toxic fumes of RuOx. See also RUTHENIUM COMPOUNDS.
Safety Statements 16-17-36/37/39
S16:Keep away from sources of ignition.
S17:Keep away from combustible material.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
RIDADR 3139
HazardClass 5.1
PackingGroup I