CAS 7446-08-4

Selenium dioxide

Description:

Selenium dioxide (SeO2) is a chemical compound characterized by its molecular structure, where selenium is in a +4 oxidation state. It appears as a white or yellowish crystalline solid and is known for its hygroscopic nature, meaning it readily absorbs moisture from the air. Selenium dioxide is soluble in water, forming selenous acid, and it can also dissolve in organic solvents. This compound is primarily used in organic synthesis, particularly in the oxidation of alcohols to carbonyl compounds and in the preparation of selenium-containing materials. It exhibits toxic properties, necessitating careful handling due to its potential health hazards, including respiratory irritation and other systemic effects upon exposure. Additionally, selenium dioxide can act as a Lewis acid, participating in various chemical reactions. Its reactivity and ability to form various selenium compounds make it an important substance in both industrial and laboratory settings. Proper safety measures should be observed when working with selenium dioxide to mitigate its toxic effects.

Formula: O₂Se

InChI: InChI=1S/O2Se/c1-3-2

InChI key: InChIKey=JPJALAQPGMAKDF-UHFFFAOYSA-N

SMILES: [Se](=O)=O

Synonyms:

• Dioxido De Selenio
• Dioxyde de selenium
• Nsc 56753
• Selen(Iv)-Oxid
• Selendioxid
• Selenium (Iv) Oxide
• Selenium Dioxide
• Selenium oxide (SeO₂)
• Selenium oxide (SeO2)
• ED 30 (oxide)

Selenium Dioxide

CAS: 7446-08-4

Formula: SeO₂

Purity: >98.0%

Color and Shape: White to Almost white powder to crystal

Molecular weight: 110.96

Ref: 3B-E1459

Selenium(IV) oxide, 99.4% (metals basis)

CAS: 7446-08-4

It is used in the manufacture of other selenium compounds. Selenium dioxide is an oxidizing agent mostly used in the allylic oxidation of alkenes to produce allylic alcohols. It is used in creating colorless glass and toner in photographic developing. This Thermo Scientific Chemicals brand product

Formula: O₂Se

Purity: 99.4%

Molecular weight: 110.97

Ref: 02-012358

Selenium(IV) oxide, Puratronic™, 99.999% (metals basis)

CAS: 7446-08-4

In organic reactions, selenium dioxide is often used as an oxidizing reagent employed for carrying out allylic oxidations, Riley oxidation, synthesis of diones, etc. It is used to impart a red color to glass. It finds use as a toner in photographic developing, and an active ingredient in some cold

Formula: O₂Se

Purity: 99.999%

Molecular weight: 110.97

Ref: 02-010854

Selenium(IV) oxide, 99.8%

CAS: 7446-08-4

Selenium(IV) oxide, 99.8%

Formula: SeO₂

Purity: 99.8%

Color and Shape: off-white pwdr.

Molecular weight: 110.96

Ref: 08-93-3406

Selenium(IV) oxide

CAS: 7446-08-4

Selenium(IV) oxide

Formula: H₂O₂Se

Purity: 99.90%

Color and Shape: Solid-Powder

Molecular weight: 112.97467

Ref: 54-IN3175

Selenium(IV) oxide

CAS: 7446-08-4

Selenium(IV) oxide

Formula: H₂O₂Se

Purity: 99.8%

Color and Shape: Solid-Powder

Molecular weight: 112.97467

Ref: 54-IN9857

Selenium Dioxide

CAS: 7446-08-4

R00403 - Selenium Dioxide

Formula: O₂Se

Color and Shape: Solid

Molecular weight: 110.969

Ref: 10-R00403

Selenium oxide, 99.8%

CAS: 7446-08-4

Formula: SeO₂

Purity: ≥ 99.8%

Color and Shape: White to off-white to pink crystalline powder or crystals

Molecular weight: 110.96

Ref: 7W-GX9113

Selenium oxide, 99.999%

CAS: 7446-08-4

Formula: SeO₂

Purity: ≥ 99.999%

Color and Shape: White to off-white powder, crystals or chunks

Molecular weight: 110.96

Ref: 7W-GX8476

Selenium oxide, 99.9%

CAS: 7446-08-4

Formula: SeO₂

Purity: ≥ 99.9%

Color and Shape: White crystalline powder, crystals or chunks

Molecular weight: 110.96

Ref: 7W-GX6083

Selenium(IV) Oxide

CAS: 7446-08-4

Applications Selenium(IV) Oxide, is an important reagent in organic synthesis. Oxidation of paraldehyde (acetaldehyde trimer) with SeO2 gives glyoxal and the oxidation of cyclohexanone gives cyclohexane-1,2-dione.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Hatch, C. C., et al.; Org. Synth., 4, 229 (1963); Ronzio, A. r., et al.: Org. Synth., 3, 438 (1955);

Formula: O₂Se

Color and Shape: Neat

Molecular weight: 110.97

Ref: TR-S252490

Selenium(IV) oxide (99.999%-Se) PURATREM

CAS: 7446-08-4

Selenium(IV) oxide (99.999%-Se) PURATREM

Formula: SeO₂

Purity: (99.999%-Se)

Color and Shape: off-white pwdr.

Molecular weight: 110.96

Ref: 08-93-3405

Selenium Dioxide pure, 98%

CAS: 7446-08-4

Formula: SeO₂

Purity: min. 98%

Color and Shape: White, Crystalline powder

Molecular weight: 110.96

Ref: SR-44779