Ingredient Dictionary

SELENIUM SULFIDE

Selenium sulfide is a sulfide salt.

Definition

Selenium sulfide is a sulfide salt.

Source: PubChem

US FDA substance register · UNII Z69D9E381Q · registered name Selenium Sulfide · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Softens hairHAIR CONDITIONINGActs on seborrheic flaking and dandruffANTI-SEBORRHEIC

Safety & regulatory references

Restricted: United Kingdom

Source: ASEAN Cosmetic Directive · EU Cosmetics Regulation · MFDS (Korea) cosmetic regulatory information · Taiwan FDA cosmetic ingredients · Taiwan FDA cosmetic regulations · UK cosmetics regulations (OPSS)

Argentina · Brazil

Field of application and/or use : Product to combat dandruff
Maximum concentration permitted at final product : 1.0%
Use conditions and warnings that must appear on the label : Contains selenium disulfide. Avoid contact with eyes or injured or irritated skin. If this occurs, wash with water in abundance.

ASEAN

Field of application and/or use : Anti-dandruff shampoo
Maximum authorised concentration in the finished cosmetic product : 1%
Conditions of use and warning which must be printed on the labels : • Contains selenium disulphide • Avoid contact with eyes or damaged skin

Taiwan

Maximum concentration : 0.5%

China

Maximum concentration : 1%

European Union

Product Type, body parts : Antidandruff shampoos
Maximum concentration in ready for use preparation : 1%
Wording of conditions of use and warnings : Contains selenium disulphide Avoid contact with eyes or damaged skin

Source: MFDS (Korea) cosmetic regulatory information

Korea’s toxic-substance GHS classification: Danger · H301 (category 3) · H331 (category 3) · H373 (category 2) · +2 more

Source: Korea toxic substances GHS register (NIER)

EU Cosmetics Regulation, Annex III (restricted substances), entry 49 · maximum concentration 1% · applies to Antidandruff shampoos

Source: EU restricted substances (Annex III)

Restriction III/49

Source: EU CosIng ingredient list

More data — names, identifiers, properties, test records, literature

Names & identifiers

SELENIUM SULFIDEINCI셀레늄설파이드Korean label name (MFDS standard)Selenium sulfide (SeS2)Synonym

CAS No.chemical registry number: 7488-56-4
EC No.EU chemical inventory number: 231-303-8
DTXSIDUS EPA chemical ID: DTXSID0042375
DTXCIDUS EPA compound ID: DTXCID8022375

IUPAC: Bis(sulfanylidene)-lambda~4~-selane
Molecular formula: S2Se
Molecular weight: 143.09 g/mol

Measured properties

Appearance: Selenium disulfide is a bright orange colored powder. It is insoluble in water. It is toxic by ingestion and inhalation, and is irritating to skin and eyes. It is used to make medicated shampoos. · Dry Powder
Boiling point: Decomposes (NTP, 1992) · Decomposes
Melting point: less than 212 °F (NTP, 1992) · 100 °C
Solubility: 10 to 50 mg/mL at 68 °F (NTP, 1992) · Practically insoluble
Melting/freezing point: 106.5 ℃
Vapour pressure: 0.001 ㎩(at 20℃)
Water solubility: 0.5 ㎎/ℓ(at 20°C)
Relative density: 2.442
Molecular weight: 143.092

Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.

Source: PubChem · KOSHA safety data sheets (Korea)

What products actually use it for

What the 7 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.

Anti-dandruff (EPA)4
Softener and conditioner3

Source: US EPA CompTox dashboard