Selenium sulfide Property

Melting point:

100 °C

Boiling point:

decomposes [STR93]

Density 

2.442[at 20℃]

vapor pressure 

0.001Pa at 20℃

storage temp. 

Store below +30°C.

solubility 

Practically insoluble in water.

form 

Powder

color 

Red-brown

Water Solubility 

Insoluble in water.

Merck 

14,8436

Exposure limits

ACGIH: TWA 0.2 mg/m3
NIOSH: IDLH 1 mg/m3; TWA 0.2 mg/m3

EPA Substance Registry System

Selenium disulfide (7488-56-4)

Safety

Hazard Codes 

N-T,N,T

Risk 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

HS Code 

28309085

Hazardous Substances Data

7488-56-4(Hazardous Substances Data)

Toxicity

LD50 orally in rats: 138 mg/kg (Cummins, Kimura)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H373May cause damage to organs through prolonged or repeated exposure

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P273Avoid release to the environment.

P314Get medical advice/attention if you feel unwell.

Selenium sulfide Chemical Properties,Usage,Production

Chemical Properties

orange to reddish-brown powder

Chemical Properties

There are various selenium sulfides: Selenium monosulfide, SeS, is orange-yellow powder or tablets,

Uses

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.

Uses

Antifungal; antiseborrheic.

Definition

ChEBI: Selenium sulfide is a sulfide salt.

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

Not classified

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.

Potential Exposure

Selenium sulfide is used for the treatment of seborrhea, especially in shampoos. The chemical is available over the counter as Selsun, a stabilized buffered suspension. FDA reports that selenium sulfide is an active ingredient in some drug products used for the treatment of dandruff and certain types of dermatitis. A dandruff shampoo containing 1% selenium sulfide is available without a prescription and is recommended for use once or twice a week. By prescription, selenium sulfide is available in a 2.5% shampoo or lotion, with the recommended application limited to 10 minutes for 7 days to avoid the possibility of acute toxic effects. Selenium sulfide is also used topically in veterinary medicine for eczemas and dermatomycoses.

Shipping

UN2657 Selenium disulfide, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

Incompatibilities

Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Violent reaction with silver oxide.