Selenium(IV) oxide, 99.8%, (trace metal basis), Thermo Scientific Chemicals

Product Code	Brand	Quantity	Packaging
10266540	Thermo Scientific Acros 200000100	10 g	Glass bottle
10665082	Thermo Scientific Acros 200001000	100 g	Glass bottle
10480281	Thermo Scientific Acros 200005000	500 g	Glass bottle
11964121	Thermo Scientific Acros 200000025	2.5 kg	Glass bottle

Description

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Chemical Identifiers

• CAS: 7446-08-4
• Molecular Weight (g/mol): 110.97
• InChI Key: JPJALAQPGMAKDF-UHFFFAOYSA-N
• PubChem CID: 24007

• Molecular Formula: O2Se
• MDL Number: MFCD00003562
• Synonym: selenium oxide, selenium iv oxide, oxoselane oxide, selenious anhydride, selenium oxide seo2, seleniumdioxide, dimer, selenous acid anhydride, selenium iv dioxide 1:2, selenium oxide se2o4
• SMILES: O=[Se]=O

Specifications

• Melting Point: 315.0°C
• Color: White to Beige
• Assay Percent Range: 70 to 71.5% Se
• Linear Formula: SeO₂
• Fieser: 01,992; 02,360; 03,245; 04,422; 05,575; 06,509; 08,439; 09,409; 10,345; 11,96; 13,272; 14,177; 15,89; 17,312
• Synonym: selenium oxide, selenium iv oxide, oxoselane oxide, selenious anhydride, selenium oxide seo2, seleniumdioxide, dimer, selenous acid anhydride, selenium iv dioxide 1:2, selenium oxide se2o4
• InChI Key: JPJALAQPGMAKDF-UHFFFAOYSA-N
• IUPAC Name: selenium dioxide
• PubChem CID: 24007
• Percent Purity: 99.8%
• Chemical Name or Material: Selenium(IV) oxide

• CAS: 7446-08-4
• Physical Form: Powder
• Molecular Formula: O2Se
• MDL Number: MFCD00003562
• Merck Index: 15,8571
• Solubility Information: Solubility in water: 38.4 g/100mL (14°C). Other solubilities: 1.11 parts/100 parts acetic acid (13.9°C), 10.16 parts/100 parts methanol (11.8°C), 6.67 parts/100 parts 93% ethanol (14°C), 4.35 parts/100 parts acetone (15.3°C)
• SMILES: O=[Se]=O
• Molecular Weight (g/mol): 110.97
• Formula Weight: 110.96
• Grade: Trace Metal Basis

Safety and Handling

GHS Signal Word: Danger

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Product Identifier

• Selenium(IV) oxide

Signal Word

• Danger

Hazard Category

• Acute toxicity Category 3
• LONG-TERM AQUATIC HAZARD Chronic 1
• ACUTE AQUATIC Acute 1
• Specific target organ toxicity after repeated exposure Category 2

Hazard Statement

• H400-Very toxic to aquatic life.
• H410-Very toxic to aquatic life with long lasting effects.
• H373-May cause damage to organs.
• H331-Toxic if inhaled.
• H301-Toxic if swallowed.

Precautionary Statement

• P260-Do not breathe dust/fume/gas/mist/vapours/spray.
• P273-Avoid release to the environment.
• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P301+P310-IF SWALLOWED: Immediately call a POISON CENTER/doctor /
• P301+P330+P331-IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
• P304+P340-IF INHALED: Remove person to fresh air and keep comfortable for breathing.
• P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
• P310-Immediately call a POISON CENTER/doctor/.

RUO – Research Use Only