Ingredient Dictionary

DECANE

Decane is a straight-chain alkane with 10 carbon atoms.

Definition

Decane is a straight-chain alkane with 10 carbon atoms.

Source: PubChem

US FDA substance register · UNII NK85062OIY · registered name DECANE · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Keeps a film flexiblePLASTICISERAdjusts thicknessVISCOSITY CONTROLLINGListed as a fragrance-composition material (not a claim that it adds scent)FRAGRANCEBase that dissolves other ingredientsSOLVENT

Safety & regulatory references

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

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

Official labels & definitions

JCIA labelling name デカン: 本品は、次の化学式で表される脂肪族炭化水素である。

Source: JCIA labelling names (Japan)

Names & identifiers

DECANEINCI데케인Korean label name (MFDS standard)デカンJapanese labelling name

CAS No.chemical registry number: 124-18-5
EC No.EU chemical inventory number: 204-686-4
DTXSIDUS EPA chemical ID: DTXSID6024913
DTXCIDUS EPA compound ID: DTXCID704913

IUPAC: Decane
Molecular formula: C10H22
Molecular weight: 142.286 g/mol

Measured properties

Appearance: N-decane appears as a colorless liquid. Flash point 115 °F. Less dense than water and insoluble in water. Vapors heavier than air. In high concentrations its vapors may be narcotic. Used as a solvent and to make other chemicals. · Liquid
Boiling point: 345.4 °F at 760 mmHg (NTP, 1992) · 174.1 °C
Melting point: -21.5 °F (NTP, 1992) · -29.7 °C
Solubility: less than 1 mg/mL at 70 °F (NTP, 1992) · In water, 5.20X10-2 mg/L at 25 °C
Density: 0.73 at 60 °F (USCG, 1999) - Less dense than water, will float · 0.7255 g/cu cm at 25 °C
Stability: Stable under recommended storage conditions.
Viscosity: 2.188 mPa s at -25 °C, 1.277 mPa s at 0 °C, 0.838 mPa s at 25 °C, 0.598 mPa s at 50 °C, 0.453 mPa s at 75 °C, 0.359 mPa s at 100 °C · 0.92-0.93 cP (at 20C)
Colour: colourless
Odour threshold: (11.3 mg/m3)
Melting/freezing point: -29~-32 ℃
Initial boiling point and range: 171~174 ℃
Flash point: 46 ℃
Upper/lower flammability or explosive limits: 5.4 / 0.8 %
Vapour pressure: 1.43 ㎜Hg ( at 25C)
Water solubility: (0.052 mg/L at 25 C)
Vapour density: 4.9
Relative density: (0.7298-0.734)
n-Octanol/water partition coefficient (Kow): 5.01
Auto-ignition temperature: 210 ℃
Molecular weight: 124.29

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 14 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.

Solvent4
Intermediate3
Fuel2
Fragrance2
Viscosity modifier1
Deodorizer1
Plasticizer1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

7 skin studies and 3 eye studies are on record.

Classed as highly irritating6Classed as moderate2Classed as low8

The studies disagree (the most common conclusion covers 38%), so they do not establish that this ingredient is irritating. These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 10 studies

Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) equivalent or similar to
Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · equivalent or similar to OECD Guideline 406 (Skin Sensitisation)
Severe Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) equivalent or similar to
Moderate or Mild Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) equivalent or similar to
Classification not possible
Skin Sensitization · Screening
Classification not possible
Skin Irritation · Screening
Severe Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to
Classification not possible
Eye Irritation · Screening
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) equivalent or similar to