Dodecane
- CAS No.
- 112-40-3
- Chemical Name:
- Dodecane
- Synonyms
- N-DODECANE;Dodecan;DUODECANE;n-dodecan;ADAKANE 12;DIHEXYL;ALKANE C12;Twelve alkyl;n-Dodecane min;dodecanenormal
- CBNumber:
- CB5678167
- Molecular Formula:
- C12H26
- Molecular Weight:
- 170.33
- MDL Number:
- MFCD00008969
- MOL File:
- 112-40-3.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | -9.6 °C (lit.) |
|---|---|
| Boiling point | 215-217 °C (lit.) |
| Density | 0.75 g/mL at 25 °C (lit.) |
| vapor density | 5.96 (vs air) |
| vapor pressure | 1 mm Hg ( 47.8 °C) |
| refractive index |
n |
| FLAVIS Number | 01.038 | Dodecane |
| Flash point | 181.4 °F |
| storage temp. | Store below +30°C. |
| solubility | Soluble in acetone, alcohol, chloroform, ether (Weast, 1986), and many hydrocarbons |
| form | Liquid |
| pka | >14 (Schwarzenbach et al., 1993) |
| Specific Gravity | 0.749 (20/4℃) |
| color | Colorless |
| Odor | alkane |
| Viscosity | 1.98mm2/s |
| explosive limit | 0.6%(V) |
| Odor Threshold | 0.11ppm |
| Water Solubility | <0.1 g/100 mL at 25 ºC |
| Thermal Conductivity | 0.135 W/(m·K) at 25 ℃ |
| Specific Heat Capacity | Cp(liquid): 2.21 J/(g·K), at 25℃ |
| BRN | 1697175 |
| Henry's Law Constant | 29.7(atmm3/mol) at 25 °C (calculated from water solubility and vapor pressure, Tolls et al., 2002) Interfacial tension |
| Dielectric constant | 2.0(20℃) |
| Cosmetics Ingredients Functions | PERFUMING |
| InChI | 1S/C12H26/c1-3-5-7-9-11-12-10-8-6-4-2/h3-12H2,1-2H3 |
| InChIKey | SNRUBQQJIBEYMU-UHFFFAOYSA-N |
| SMILES | CCCCCCCCCCCC |
| LogP | 6.100 |
| Surface tension | 24.07mN/m at 293.15K |
| CAS DataBase Reference | 112-40-3(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | 11A386X1QH |
| NIST Chemistry Reference | n-Dodecane(112-40-3) |
| EPA Substance Registry System | Dodecane (112-40-3) |
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS08 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H304 | |||||||||
| Precautionary statements | P301+P310-P331-P405-P501 | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 65-66 | |||||||||
| Safety Statements | 62-60-36 | |||||||||
| RIDADR | NA 1993 / PGIII | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | JR2125000 | |||||||||
| Autoignition Temperature | 401 °F | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | CBL | |||||||||
| HS Code | 29011090 | |||||||||
| Storage Class | 10 - Combustible liquids | |||||||||
| Hazard Classifications | Asp. Tox. 1 | |||||||||
| Hazardous Substances Data | 112-40-3(Hazardous Substances Data) | |||||||||
| Toxicity | mouse,LDLo,intravenous,2672mg/kg (2672mg/kg),BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX),Acta Pharmacologica et Toxicologica. Vol. 37, Pg. 56, 1975. | |||||||||
| REACH Registrations | Active | |||||||||
| Excepted Quantities | Non-Hazardous | |||||||||
| NFPA 704 |
|
Dodecane price More Price(60)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 8.20543 | n-Dodecane for synthesis | 112-40-3 | 100mL | $72.5 | 2026-04-30 | Buy |
| Sigma-Aldrich | 8.20543 | n-Dodecane for synthesis | 112-40-3 | 250ML | $104 | 2026-04-30 | Buy |
| Sigma-Aldrich | 8.20543 | n-Dodecane for synthesis | 112-40-3 | 1L | $290 | 2026-04-30 | Buy |
| Sigma-Aldrich | 297879 | Dodecane anhydrous, ≥99% | 112-40-3 | 1l | $430 | 2026-04-30 | Buy |
| Sigma-Aldrich | 297879 | Dodecane anhydrous, ≥99% | 112-40-3 | 2l | $641 | 2026-04-30 | Buy |
Dodecane Chemical Properties, Uses, Production
Description
Dodecane is a liquid alkane hydrocarbon that is found in black walnut that has 355 isomers. It is an oily liquid of the paraffin series. Dodecane is a colorless liquid that has a boiling point of 421.3° F at 760 mm Hg and a melting point of 14.7° F. It is very soluble in ethyl ether, ethyl alcohol, carbon tetrachloride, and chloroform. Dodecane is stable under recommended storage conditions. However, under elevated temperatures, it decomposes to emit irritating fumes and smoke.
Preparation Method
1-Hexene is hydroborated with baron trifluoride and sodium borohydride in diglyme. Aqueous potassium hydroxide is then added followed by aqueous nitrate. Dodecane is produced as the product.
Applications
Dodecane may be utilized as an inorganic diluent to form an organic phase together with tri-n-octylamine as an extractant and decanol as an active diluent. Notably, this system can also be employed in the extraction of lactic acid from aqueous solutions.
Food Additives
Dodecane can be used as a flavoring agent in food processing
Industrial Uses
Dodecane has been used in the aviation industry as an alternate for kerosene-based fuels such as Jet-A. It has also been used as a lubricant and additive to lubricants.
Consumer Uses
Dodecane is used as an adhesive and sealants.
Chemical Properties
colourless liquid
Chemical Properties
Dodecane, C12H26, is a flammable, colorless liquid with specific gravity 0.749. It occurs in the paraffin fraction of petroleum. Dodecane is released to the environment by wastewater and spills from laboratory and general use of paraffins, petroleum oils, and tars.
Physical properties
Clear, colorless liquid with a mild aliphatic hydrocarbon odor. An odor threshold concentration of 620 ppbv was reported by Nagata and Takeuchi (1990).
Uses
Dodecane is a component of gasoline and is used as solvent, in organic synthesis, in jet fuel research, as a distillation chaser, and in the rubber and paper processing industries.
Uses
Solvent; jet fuel research; rubber industry; manufacturing paraffin products; paper processing industry; standardized hydrocarbon; distillation chaser; gasoline component; organic synthesis.
Uses
n-Dodecane is used as a solvent and a distillation chaser. It finds application as a diluent for tributyl phosphate (TBP) in reprocessing plants and as a possible surrogate for kerosene-based fuels in jet. It is an active component of scintillator as well as used in lubricants and greases.
Production Methods
Dodecane is isolated from the kerosene and gas oil fractions of crude oil by selective adsorption and subsequent desorption to yield mixtures of paraffins that can be separated by fractional distillation.
Definition
ChEBI: A straight-chain alkane with 12 carbon atoms. It has been form the essential oils of various plants including Zingiber officinale (ginger).
Synthesis Reference(s)
The Journal of Organic Chemistry, 44, p. 1014, 1979 DOI: 10.1021/jo01320a033
Tetrahedron Letters, 31, p. 4681, 1990 DOI: 10.1016/S0040-4039(00)97705-0
General Description
Clear colorless liquid.
Air & Water Reactions
Flammable. Insoluble in water.
Reactivity Profile
Saturated aliphatic hydrocarbons, such as Dodecane, may be incompatible with strong oxidizing agents like nitric acid. Charring of the hydrocarbon may occur followed by ignition of unreacted hydrocarbon and other nearby combustibles. In other settings, aliphatic saturated hydrocarbons are mostly unreactive. They are not affected by aqueous solutions of acids, alkalis, most oxidizing agents, and most reducing agents. When heated sufficiently or when ignited in the presence of air, oxygen or strong oxidizing agents, they burn exothermically to produce carbon dioxide and water.
Fire Hazard
Dodecane is combustible.
Carcinogenicity
Dodecane has been shown to be a promoter of skin carcinogenesis for benzo[a]pyrene and ultraviolet radiation.
Source
Constituent in paraffin fraction of petroleum. Dodecane may be present in stormwater
runoff from asphalted roadways and general use of petroleum oils and tars (quoted, Verschueren).
Schauer et al. (1999) reported dodecane in diesel fuel at a concentration of 15,500 μg/g and in a
diesel-powered medium-duty truck exhaust at an emission rate of 503 μg/kg.
California Phase II reformulated gasoline contained dodecane at a concentration of 136 mg/kg.
Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic
converters were 83.9 and 1,770 μg/km, respectively (Schauer et al., 2002).
Identified as one of 140 volatile constituents in used soybean oils collected from a processing
plant that fried various beef, chicken, and veal products (Takeoka et al., 1996). Also identified
among 139 volatile compounds identified in cantaloupe (Cucumis melo var. reticulates cv. Sol
Real) using an automated rapid headspace solid phase microextraction method (Beaulieu and
Grimm, 2001).
Environmental Fate
Biological. Dodecane may biodegrade in two ways. The first is the formation of dodecyl
hydroperoxide which decomposes to 1-dodecanol. The alcohol is oxidized forming dodecanoic
acid. The other pathway involves dehydrogenation to 1-dodecene, which may react with water,
giving 1-dodecanol (Dugan, 1972).
Estimated half-lives of dodecane (0.3 μg/L) from an experimental marine mesocosm during the
spring (8–16 °C), summer (20–22 °C), and winter (3–7 °C) were 1.1, 0.7, and 3.6 d, respectively
(Wakeham et al., 1983).
Chemical/Physical. Complete combustion in air yields carbon dioxide and water. Dodecane will
not hydrolyze because it has no hydrolyzable functional group.
Purification Methods
Pass it through a column of Linde type 13X molecular sieves. Store it in contact with, and distil it from sodium. Pass through a column of activated silica gel. It has been crystallised from diethyl ether at -60o. Unsaturated dry material which remained after passage through silica gel has been removed by catalytic hydrogenation (Pt2O) at 45lb/in2 (3.06 atmospheres), followed by fractional distillation under reduced pressure [Zook & Goldey J Am Chem Soc 75 3975 1953]. It has also purified by partial crystallisation from the melt. [Beilstein 1 IV 498.]
Dodecane Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
1of2
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Beyond IndustriesChina Limited | +86-15021878111 | joan@beyondindustriesgroup.com | China | 935 | 55 |
| Shanghai Aladdin Bio-Chem Technology Co.,LTD | 400-6206333 13167063860 | anhua.mao@aladdin-e.com | China | 29975 | 65 |
| Guangdong wengjiang Chemical Reagent Co., Ltd. | 0751-2886750 13927877953 | 3005811397@qq.com | China | 13280 | 58 |
| Jinan Yuanshang New Materials Co., Ltd. | 15269161103 | 15269161103@163.com | China | 985 | 58 |
| Jinan Yuanshang New Materials Co., Ltd | 0152-69160223 15269160223 | 15269160223@163.com | China | 969 | 58 |
| shandongxinheng | 152-15269160605-0605 15269160605 | 15269160605@163.com | China | 999 | 58 |
| Shandong Xinhecheng Chemical Co., Ltd | 18906445327 18660169893 | xiaofeiyu1319@126.com | China | 549 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| future industrial shanghai co., ltd | 400-0066400 13621662912 | sales@jonln.com | China | 1989 | 65 |
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Related Questions
Ask a questionView Latest Price from Dodecane manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-10-18 | n-Dodecane
112-40-3
|
0.99 | RongNa Biotechnology Co.,Ltd | ||||
 |
2026-09-02 | Dodecane
112-40-3
|
$1.00-100.00 | 1KG | 99% | Henan Fengda Chemical Co., Ltd | ||
 |
2026-05-28 | Dodecane
112-40-3
|
$10.00 | 1KG | 99.% | 10 ton | Hebei Chuanghai Biotechnology Co,.LTD |
-
- n-Dodecane
112-40-3
- 0.99
- RongNa Biotechnology Co.,Ltd
-
- Dodecane
112-40-3
- $1.00-100.00
- 99%
- Henan Fengda Chemical Co., Ltd
-
- Dodecane
112-40-3
- $10.00
- 99.%
- Hebei Chuanghai Biotechnology Co,.LTD
