Selenium sulfide

Basic Information

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CAS Number

56093-45-9

Molecular Formula

H2SSe

Molecular Weight

113.05 g/mol

EINECS

231-303-8

Chemical Classification

Basic Chemical Raw Materials Inorganic Chemicals Acids

Basic Physical Properties

Melting Point

111°C

Boiling Point

118-119°C (dec.)

Density

3.056

Water Solubility

<0.1 g/100 mL at 21 ºC

SMILES

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S.[Se]

InChI

InChI=1S/H2S.Se/h1H2;

InChIKey

IWCXOLNHAAATNC-UHFFFAOYSA-N

LogP

-0.268

Topological Polar Surface Area

0.0 Å²

Hydrogen Bond Donor/Acceptor

0 / 0

Complexity

Safety Information

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Hazard Class

Class 6.1(a) Class 6.1(a)

Synonyms & References

English

56093-45-9
Selenium sulfide
SELENIUM DISULFIDESELENIUM(IV) SULFIDEsulfur selenideSelenium sulfide (SeS)SELENIUMMONOSULPHIDESELENIUMMONOSULFIDESELENIUM(II)SULPHIDE
Seleniumsulfide
SELENIUM DISULFIDE
SELENIUM(IV) SULFIDE
sulfur selenide
Selenium sulfide (SeS)
SELENIUMMONOSULPHIDE
SELENIUMMONOSULFIDE
SELENIUM(II)SULPHIDE
Selenium Sulfide >99%

EC Number

231-303-8

FAQ

What are the physical and chemical properties of Selenium sulfide (CAS: 56093-45-9)?

Selenium sulfide (CAS: 56093-45-9) is a white or pale yellow crystalline powder. It has a molecular weight of approximately 136.47 g/mol. Selenium sulfide is insoluble in water but soluble in organic solvents. It is relatively stable under normal conditions but can react with strong oxidizing agents. It is used as a fungicide and antifungal scalp treatment due to its ability to inhibit fungal growth and reduce scalp activity.

How is Selenium sulfide (CAS: 56093-45-9) typically synthesized?

Selenium sulfide (CAS: 56093-45-9) is typically synthesized by reacting selenium with hydrogen sulfide in the presence of a catalyst. Commonly, a sulfuric acid or sulfur catalyst is used to promote the reaction. The process is carried out at temperatures between 250-300°C, resulting in a high yield and good selectivity for the formation of selenium sulfide.

What industries use Selenium sulfide (CAS: 56093-45-9)?

Selenium sulfide (CAS: 56093-45-9) is primarily used in the pharmaceutical industry as an antifungal agent in shampoo formulations for treating dandruff and seborrheic dermatitis. It is also utilized in the cosmetic industry for similar applications. Additionally, it has been explored for use in polymers and as a dopant in semiconductors for its unique properties.

What precautions should be taken when handling Selenium sulfide (CAS: 56093-45-9)?

When handling Selenium sulfide (CAS: 56093-45-9), it is important to use appropriate personal protective equipment (PPE) such as gloves, goggles, and a laboratory coat. Storage should be in a cool, dry place away from direct sunlight and heat sources. Inhalation of the powder should be avoided, so it is recommended to use a fume hood for handling. In case of a spill, it should be carefully cleaned up using appropriate procedures as outlined in the Safety Data Sheet (SDS).