High Purity Selenium dioxide with CAS 7446-08-4

Basic Info

Model No.: SY-7446-08-4

Classification: Other Oxides

Grade Standard: Industrial Grade

Kind: No Salt Oxide

Quality: First Class, Top Grade

Grade: Industrial Grade

Delivery: Fast Delivery

CAS: 7446-08-4

Density: 4.81 G/mL At 25 °C(lit.)

Purity: High Purity

Boiling Point: 684.9 °C(lit.)

Form: Powder

Color: White

Melting Point: 315 °C (subl.)(lit.)

Additional Info

Packaging: 25KGS/Bag

Productivity: 1000MT/Month

Brand: Shenyu

Transportation: Ocean,Land,Air, Automobile

Place of Origin: China

Supply Ability: 1000MT/Month

Port: China Port,Qingdao Port,Shanghai Port

Product Description

High Purity Selenium dioxide with CAS 7446-08-4

Product Overview

Selenium dioxide, White or light yellow monoclinic or tetragonal crystals, hygroscopic and pungent sour. Soluble in water, ethanol, acetone, acetic acid and benzene. Used to make high purity selenium and other selenium compounds, or as an oxidant and catalyst for organic synthetic drugs. Used as an organic compound oxidant, catalyst, chemical reagent, raw materials for the manufacture of various inorganic selenium compounds. Also used in copiers, rectifiers, etc. For manufacturing of other selenium compounds, alkaloid tests, oxidants. It reacts with ammonia to form nitrogen and selenium. In the alcohol solution, it produces ethylammonium selenite [NH4(C2H5)SeO3], which forms nitrogen and black amorphous selenium with hydrazine, and hydroxylamine hydrochloride produces nitrogen and reddish brown amorphous selenium. Produces selenite with nitric acid.

Physical Properties

CAS No.: 7446-08-4
Molecular formula: O2Se
Molecular weight: 110.96
EINECS number: 231-957-4
Melting point 315 °C (subl.) (lit.)
Boiling point 684.9 °C (lit.)
Density 4.81 g/mL at 25 °C (lit.)
Vapor pressure 1 mm Hg ( 157 °C)
Refractive index nD20 <1.76
Flash point 315 ° C
Storage conditions Store below +30°C.
Solubility H2O: soluble
Morphological powder
Color white
PH 2 (10g/l, H2O, 20°C)
Water solubility 38.4 g/100 mL (14 °C)
Sublimation point 315 °C

Application

1. It is used for the production of electrolytic manganese metal. 2. It is used to produce sodium selenite. 3. Selenium dioxide is used as raw material for the production of organic compound oxidants, catalysts, chemical reagents and various inorganic selenium compounds. It is used as a special reagent for plant alkali. It can also be used to precipitate zirconium, hafnium and prepare selenium compounds to react with ammonia to form nitrogen and selenium. In alcohol solution, ethylammonium selenite is formed, and niobium is used to form nitrogen and black amorphous selenium. Hydroxylamine hydrochloride produces nitrogen and reddish brown amorphous selenium, and nitric acid produces selenite. 4. Selenium dioxide is used to make high-purity selenium and other selenium compounds. Also used in copiers, rectifiers, etc.

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