Selenium trioxide
Selenium trioxide
- CAS:
- 13768-86-0
- MF:
- O3Se
- MW:
- 126.96
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Properties
- Melting point:
- 118°C
- Boiling point:
- decomposes at 180℃ [CRC10]
- Density
- 3.440
- solubility
- soluble in H2O, organic solvents
- form
- white tetragonal crystals
- color
- white tetragonal crystals, crystalline; hygroscopic
- Water Solubility
- dissolves in H2O forming selenic acid [KIR82]
- crystal system
- square
- Space group
- P421c
- Lattice constant
a/nm b/nm c/nm α/o β/o γ/o V/nm3 0.9636 0.9636 0.528 90 90 90 0.4903
- EPA Substance Registry System
- Selenium oxide (SeO3) (13768-86-0)
Safety Information
- RIDADR
- 3283
- HazardClass
- 6.1
- PackingGroup
- II
Use
Inorganic oxidizing agents, such as Selenium trioxide, can react with reducing agents to generate heat and products that may be gaseous (causing pressurization of closed containers). The products may themselves be capable of further reactions (such as combustion in the air). The chemical reduction of materials in this group can be rapid or even explosive, but often requires initiation (heat, spark, catalyst, addition of a solvent). Explosive mixtures of inorganic oxidizing agents with reducing agents often persist unchanged for long periods if initiation is prevented. Such systems are typically mixtures of solids, but may involve any combination of physical states. Some inorganic oxidizing agents are salts of metals that are soluble in water; dissolution dilutes but does not nullify the oxidizing power of such materials. Organic compounds in general have some reducing power and can in principle react with compounds in this class. Actual reactivity varies greatly with the identity of the organic compound. Inorganic oxidizing agents can react violently with active metals, cyanides, esters, and thiocyanates.
0 India supplier list of "Selenium trioxide"
- Product Name:Selenium trioxide
- Products Intro:Purity: 0.95&0.99 | Package: 0.1KG;1KG;1000KG | CustNote: Hot sales
- Company Type: Trader
- Country/Region: CHINA
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5MG$501.60
- Product Name:SELENIUM TRIOXIDE
- Products Intro:Brand:Acccorporation | OriginalID:INB0004094 | Purity:95.00%
- Company Type: Trader
- Country/Region: UNITED STATES

- Product Name:Selenium trioxide
- Company Type: Trader
- Country/Region: FRANCE