Ingredient Dictionary

CHLORINE DIOXIDE

Dioxidochlorine(.) is a chlorine dioxide.

Definition

Dioxidochlorine(.) is a chlorine dioxide.

Source: PubChem

US FDA substance register · UNII 8061YMS4RM · registered name CHLORINE DIOXIDE · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Chlorine Dioxide is the inorganic compound.

Cosmetic roles

Inhibits microbial growthANTIMICROBIALReduces body odourDEODORANT

Safety & regulatory references

Korea’s toxic-substance GHS classification: Danger · H301 (category 3) · H400 (category 1) · H314 (category 1) · +3 more

Source: Korea toxic substances GHS register (NIER)

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

Official labels & definitions

JCIA labelling name 二酸化塩素: 本品は、次の化学式で表される無機化合物である。

Source: JCIA labelling names (Japan)

Names & identifiers

CHLORINE DIOXIDEINCI클로린다이옥사이드Korean label name (MFDS standard)Chlorine oxide, (ClO2)Synonym二酸化塩素Japanese labelling name

CAS No.chemical registry number: 10049-04-4
DTXSIDUS EPA chemical ID: DTXSID5023958
DTXCIDUS EPA compound ID: DTXCID803958

IUPAC: Dioxo-lambda~5~-chloranyl
Molecular formula: ClO2
Molecular weight: 67.45 g/mol

Measured properties

Appearance: Chlorine dioxide hydrate, frozen is an orange colored solid, appearing as a block of ice, with a faint odor of chlorine. It may only be shipped in the frozen state and then only by private or contract motor carrier. The melting point of the hydrate is around 30 °F. If it should thaw and further warm up, chlorine dioxide gas is given off. The gas is toxic by inhalation. The gas and liquid are viole · Liquid, Gas Vapor
Odour: ... Unpleasant odor similar to chlorine and nitric acid.
Boiling point: 52 °F at 760 mmHg (NIOSH, 2024) · 11 °C
Melting point: -74 °F (NIOSH, 2024) · -59 °C
Solubility: 0.3 % at 77 °F (NIOSH, 2024) · In water, 3.01 g/L at 25 °C and 34.5 mm Hg
Density: 1.6 (Liquid at 32 °F) (NIOSH, 2024) - Denser than water, will sink · 1.77 g/cu cm

Values measured on the substance itself, not a specification for a commercial raw material.

Source: PubChem

What products actually use it for

What the 18 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.

Biocide11
Bleaching agent2
Processing aids not otherwise specified2
Deodorizer1
pH regulating agent1
Food preservative (EPA)1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

5 skin studies and 2 eye studies are on record.

Classed as highly irritating2

The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 7 studies

Skin Corr. 1B
Skin Irritation · Authoritative
Classification not possible
Skin Sensitization · Screening
Classification not possible
Skin Irritation · Screening
Category 8.2C (Category 1C)
Skin Irritation · Read Across
Skin corrosion/irritation - Category 1
Skin Irritation · Screening
Category 2B
Eye Irritation · Screening
Category 8.3A (Category 1)
Eye Irritation · Read Across