PRODUCT Properties
| Melting point: | 39-41 °C(lit.) |
| Boiling point: | 100 °C2 mm Hg(lit.) |
| Density | 0,792 g/cm3 |
| vapor density | 10.3 (vs air) |
| vapor pressure | <1 mm Hg ( 20 °C) |
| refractive index | 1.4352 (589.3 nm 45℃) |
| Flash point: | >230 °F |
| storage temp. | Refrigerator |
| solubility | Chloroform, Hexane |
| form | Crystalline Chunks, Crystals, or Flakes |
| color | White |
| Odor | at 100.00%. waxy |
| BRN | 1748500 |
| Henry's Law Constant | 7.3×10-8 mol/(m3Pa) at 25℃, Hilal et al. (2008) |
| Stability: | Stable. Combustible. Incompatible with strong oxidizing agents. |
| Major Application | petroleum |
| Cosmetics Ingredients Functions | PERFUMING |
| InChI | 1S/C21H44/c1-3-5-7-9-11-13-15-17-19-21-20-18-16-14-12-10-8-6-4-2/h3-21H2,1-2H3 |
| InChIKey | FNAZRRHPUDJQCJ-UHFFFAOYSA-N |
| SMILES | CCCCCCCCCCCCCCCCCCCCC |
| LogP | 11.406 (est) |
| CAS DataBase Reference | 629-94-7(CAS DataBase Reference) |
| EPA Substance Registry System | Heneicosane (629-94-7) |
Description and Uses
Heneicosane (also known as n-Heneicosane) is a potential organic phase-change material (PCM) used for thermal energy storage[1]. In its pure form, it has a melting point of 313.55 K (approximately 40.4 °C) and offers advantages such as good stability, low supercooling and low cost. However, due to its relatively low thermal conductivity, it is often combined with highly thermally conductive fillers (such as graphene) to form composite materials, which are used in solar thermal energy storage, passive cooling of electronic devices, and waste heat recovery systems.
Heneicosane is a long chain saturated aliphatic hydrocarbon found in coal tars and fossil organic matter. Heneicosane has a high flashpoint which makes it an inefficient fuel for use in the petrochemical industry. Heneicosane is usually present in the form of paraffin wax.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H302-H315-H319-H335 |
| Precautionary statements | P261-P305+P351+P338 |
| PPE | Eyeshields, Gloves, type N95 (US) |
| Safety Statements | 22-24/25 |
| WGK Germany | 3 |
| RTECS | 211-118-9 |
| TSCA | TSCA listed |
| HS Code | 29011000 |
| Storage Class | 11 - Combustible Solids |
| Hazardous Substances Data | 629-94-7(Hazardous Substances Data) |
