Heptadecane CAS 629-78-7
Heptadecane, or n-heptadecane (CAS 629-78-7), is a straight chain C17 alkane, a clear liquid that sets to a waxy solid near 22 °C. It is insoluble in water and miscible with nonpolar solvents. Its narrow melt range suits phase change material use, and it also serves as a gas chromatography reference, synthesis solvent and light cosmetic emollient. UATChem supplies industrial, synthesis and cosmetic grades in 200 kg drums, 1000 L IBCs and ISO tanks, with assay on the COA. It solidifies in the cold, so drums may need gentle warming to discharge. Send grade, quantity and destination for COA, TDS and SDS.
- CAS: 629-78-7
- EC Number: 211-108-4
- Synonyms: n-Heptadecane; heptadecane; n-C17 alkane
- Molecular Formula: C₁₇H₃₆
- Molecular Weight: 240.47
- Type: Straight chain (normal) alkane
- Appearance: Clear colorless liquid; waxy solid when cold
- Melting Point: About 22 °C
- Boiling Point: About 302 °C
- Solubility: Insoluble in water, miscible with nonpolar solvents
- Use: PCM, GC reference, synthesis, cosmetic emollient
- Packaging: 200 kg steel drum / 1000 L IBC / ISO tank, custom packing available
What Heptadecane Is
Heptadecane (C₁₇H₃₆) is a straight chain normal alkane, CH₃(CH₂)₁₅CH₃. A clear liquid above room temperature, it sets to a waxy solid around 22 °C and warming restores flow. It is insoluble in water and miscible with hydrocarbons and nonpolar solvents. Buyers take it for phase change, analytical reference, synthesis and emollient uses. UATChem supplies industrial, synthesis and cosmetic grades, with assay on the COA.
Phase Change, Laboratory, Cosmetic and Industrial Uses
- Phase change materials. A normal alkane with a melt point near room temperature, used in energy storage, temperature controlled packaging, electronics cooling and building PCM formulations.
- Analytical reference. A gas chromatography retention time marker and reference standard for hydrocarbon, fuel and environmental analysis.
- Synthesis and solvent. A nonpolar process solvent and feedstock for organic synthesis and specialty chemical routes.
- Cosmetics. Used under the INCI name Heptadecane as a light, dry feel emollient and carrier in skin care and color cosmetics.
Typical Specifications
Industrial, synthesis and cosmetic grades differ in assay and hydrocarbon profile, reported on the COA for each lot; the table below identifies the material.
| Parameter | Typical Value |
|---|---|
| CAS / EC | 629-78-7 / 211-108-4 |
| Synonyms | n-Heptadecane; n-C17 alkane |
| Molecular Formula | C₁₇H₃₆ |
| Appearance | Clear colorless liquid; waxy solid when cold |
| Melting Point | About 22 °C |
| Boiling Point | About 302 °C |
| Flash Point | About 149 °C |
| Density | About 0.78 g/cm³ (liquid) |
| Solubility | Insoluble in water, miscible with nonpolar solvents |
Packaging, Documents and Ordering
- Shipped in 200 kg steel drums, 1000 L IBCs and ISO tank containers, matching the drum, IBC and tank photos on the page; because the material solidifies around 22 °C, cool weather storage and discharge need gentle, even warming rather than direct flame.
- Industrial, synthesis and cosmetic grades are available, and every lot ships with COA, TDS and SDS; transport and hazard classification follow the SDS, and samples are supported.
- For a quote, UATChem needs the grade, quantity, packing and destination port.
FAQ
Q: Why did my heptadecane arrive as a solid?
A: n-Heptadecane melts near 22 °C and sets waxy in the cold; gentle warming restores a pourable liquid with no quality change.
Q: What is heptadecane used for?
A: It serves as a room temperature phase change material, a GC reference, a synthesis solvent and a light cosmetic emollient.
Q: How is heptadecane packed and shipped?
A: UATChem ships it in 200 kg drums, 1000 L IBCs and ISO tanks with COA, TDS and SDS; cold drums may need warming to discharge.
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