7488-56-4

Basic information

• Product Name: Selenium sulfide
• Synonyms: SELENIUM(IV) SULFIDE;SELENIUM DISULFIDE;seleniumsulfide(ses2);sel-o-rinse;selsun;selsunblue;selenium disulphide;SELENIUM SULFIDE USP
• CAS NO: 7488-56-4
• Molecular Formula: S₂Se
• Molecular Weight: 143.09
• EINECS: 231-303-8
• Product Categories: Inorganics;metal chalcogenides
• Mol File: 7488-56-4.mol
• Article Data: 0

Chemical Properties

• Melting Point: 100 °C
• Boiling Point: decomposes [STR93]
• Appearance: Red-brown/Powder
• Density: 2.442[at 20℃]
• Vapor Pressure: 0.001Pa at 20℃
• Storage Temp.: Store below +30°C.
• Solubility: Practically insoluble in water.
• Water Solubility: Insoluble in water.
• Merck: 14,8436
• CAS DataBase Reference: Selenium sulfide(CAS DataBase Reference)
• NIST Chemistry Reference: Selenium sulfide(7488-56-4)
• EPA Substance Registry System: Selenium sulfide(7488-56-4)

Safety Data

• Hazard Codes: N-T,N,T
• Statements: 50/53-33-23/25
• Safety Statements: 61-60-45-28A-20/21-28
• RIDADR: 2657
• WGK Germany: 3
• RTECS: VS8925000
• TSCA: Yes
• HazardClass: 6.1
• PackingGroup: II
• Hazardous Substances Data: 7488-56-4(Hazardous Substances Data)

Usage

Chemical Properties

orange to reddish-brown powder

Uses

Different sources of media describe the Uses of 7488-56-4 differently. You can refer to the following data:
1. Selenium sulfide is used as an antifungal agent to treat dandruff, seborrheic dermatitis, eborrhea and tinea versicolor. It is the active component in shampoos as an antifungal agent.
2. Antifungal; antiseborrheic.

Indications

Selenium sulfide suspension (Selsun) is a mixture of selenium monosulfide and a suspension of solid selenium and amorphous sulfur. Selenium acts by inhibiting cellular proliferation, kills yeast organisms, and has high substantivity. Little or no toxicity has been observed when applied directly to normal skin or hair, but these products should not be used on inflamed or exudative skin, where absorption may be increased. They are used in the control of seborrheic dermatitis, dandruff, and tinea versicolor.

Brand name

Exsel (Allergan); Selsun (Chattem).

General Description

Selenium sulfide is a bright orange colored powder. Selenium sulfide is insoluble in water. Selenium sulfide is toxic by ingestion and inhalation, and is irritating to skin and eyes. Selenium sulfide is used to make medicated shampoos.

Air & Water Reactions

Slightly water soluble.

Reactivity Profile

Selenium sulfide may react vigorously with acids to release hydrogen sulfide gas.. May react with oxidizing agents, including inorganic oxoacids, organic peroxides and epoxides.

Fire Hazard

Combustible material: may burn but does not ignite readily. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.

Flammability and Explosibility

Notclassified

Safety Profile

Poison by ingestion. Used in shampoos. When heated to decomposition it emits very toxic fumes of SO, and Se. See also SELENIUM COMPOUNDS and SULFIDES.

InChI:InChI=1/S2Se/c1-2-3/q+4

Upstream product

• 7782-49-2 selenium 
• 7704-34-9 sulfur 
• 7783-06-4 hydrogen sulfide 
• 10026-03-6 selenium tetrachloride 
• 7783-00-8 selenious acid 

Downstream Products

• 114956-98-8 2As(C₆H₅)4⁽¹⁺⁾*WO(Se₄)2^(2-)={As(C₆H₅)4}2{WO(Se₄)2} 
• 113584-94-4 2As(C₆H₅)4⁽¹⁺⁾*WS(Se₄)2^(2-)={As(C₆H₅)4}2{WS(Se₄)2}