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ChemicalBook >> CAS DataBase List >>Selenium trioxide

Selenium trioxide

CAS No.
13768-86-0
Chemical Name:
Selenium trioxide
Synonyms
Selenium trioxide;Selenium(VI) oxide;Selenium(VI) trioxide;Selenium trioxide ISO 9001:2015 REACH;Selenium oxide (SeO3) (6CI,7CI,8CI,9CI)
CBNumber:
CB9852105
Molecular Formula:
O3Se
Lewis structure
seo3 lewis structure
Molecular Weight:
126.96
MDL Number:
MOL File:
13768-86-0.mol
MSDS File:
SDS
Last updated:2024-12-18 14:15:32
Product description Number Pack Size Price
SELENIUM TRIOXIDE 95.00% INB0004094 5MG $501.6
More product size

Selenium trioxide 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/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.96360.96360.5289090900.4903
EWG's Food Scores 1
EPA Substance Registry System Selenium oxide (SeO3) (13768-86-0)

SAFETY

Risk and Safety Statements

RIDADR  3283
HazardClass  6.1
PackingGroup  II

Selenium trioxide price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
American Custom Chemicals Corporation INB0004094 SELENIUM TRIOXIDE 95.00% 13768-86-0 5MG $501.6 2021-12-16 Buy
Product number Packaging Price Buy
INB0004094 5MG $501.6 Buy

Selenium trioxide Chemical Properties,Uses,Production

Chemical Properties

white crystal(s); hygroscopic; can be prepared by reacting SO3 with potassium selenate or phosphorus pentoxide with selenic acid; strong oxidizing agent; stable in dry air at room temperatures; decomposes, if heated, first to selenium pentoxide, then to the dioxide [KIR82]

General Description

White Solid.

Air & Water Reactions

Reacts vigorously with water to form selenic acid solution.

Reactivity Profile

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.

Health Hazard

Absorption of selenium may be demonstrated by presence of the element in the urine and by a garlic-like odor of breath. Inhalation can cause bronchial spasms, symptoms of asphyxiation, and pneumonitis. Acute symptoms of ingestion include sternal pain, cough, nausea, pallor, coated tongue, gastrointestinal disorders, nervousness and conjunctivitis. Contact with eyes or skin causes irritation.

Selenium trioxide Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 5)Suppliers
Supplier Tel Email Country ProdList Advantage
Shaanxi Didu New Materials Co. Ltd
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+86-88938639 +86-17705817739 info@dycnchem.com China 53803 58
Mainchem Co., Ltd. +86-0592-6210733 sale@mainchem.com China 32343 55

13768-86-0(Selenium trioxide)Related Search:

Selenium trioxide Selenium(VI) oxide Selenium(VI) trioxide Selenium oxide (SeO3) (6CI,7CI,8CI,9CI) Selenium trioxide ISO 9001:2015 REACH 13768-86-0
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