正十七烷

Description

n-Heptadecane · CAS 629-78-7 · C17H36. UNII H7C0J39XUM. Boiling Point: 575.2 °F at 760 mmHg (NTP, 1992); Boiling Point: 303 °C; Melting Point: 72 °F (NTP, 1992).

Identification

CAS Registry Number	629-78-7
PubChem CID	12398
Molecular formula	C17H36
IUPAC name	heptadecane
UNII (FDA)	H7C0J39XUM

Computed Descriptors

Molecular Weight	240.5
XLogP3	8.8
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	14
Exact Mass	240.281701148
Monoisotopic Mass	240.281701148
Topological Polar Surface Area	0
Heavy Atom Count	17
Formal Charge	0

Physical & Chemical Properties

Boiling Point	575.2 °F at 760 mmHg (NTP, 1992)
Boiling Point	303 °C
Melting Point	72 °F (NTP, 1992)
Melting Point	21.97 °C
Flash Point	149 °C (300 °F) - closed cup
Solubility	In water, 2.3X10-3 mg/L at 25 °C
Density	0.7780 g/cu cm at 20 °C
Vapor Density	8.3 (Air = 1)
Vapor Pressure	0.000228 [mmHg]
Vapor Pressure	2.28X10-4 mm Hg at 25 °C

Physical description & handling notes

• Hexagonal leafs. (NTP, 1992)
• Solid; mp = 22 deg C; [CAMEO] Colorless liquid; mp = 20-22 deg C; [Sigma-Aldrich MSDS]
• Hexagonal leaflets
• Leaflets
• Colorless liquid
• Fuel-like

Regulatory Status

GHS notification summary	14.5% (59 / 408)

GHS Hazard Classification

GHS notification summary	14.5% (59 / 408)
Reported hazard statements	H304 (84.6%)

Documented Uses

• They are used mainly in applications for which isoalkanes are not acceptable for biological reasons, e.g., the production of detergents or proteins. /Higher n-Alkanes/
• Solid n-alkanes (paraffin waxes) are used in a variety of applications, e.g., ... oxidation, and chlorination reactions. /Higher n-Alkanes/
• Heptadecane ... /is/ used as stock for hydrocracking processes.
• The liquefaction of coal provides the greatest variety of saturated hydrocarbons. The Fischer-Tropsch synthesis produces alkanes from syngas (CO + H2) in the range C1 to C30 or higher depending on the process variant: depending on the catalyst employed, the synthesis yields predominantly liquid hydrocarbons in the gasoline range, along with gases from C1 to C4 when iron-based catalysts are used, while cobalt-based catalysts produce longer chain hydrocarbons in the diesel and wax range that often undergo, depending
• Suitable sources for n-alkanes with more than six carbon atoms are the appropriate petroleum distillate fractions, from which the n-paraffins can be isolated in high isomeric purity (= 95% linearity) by selective separation techniques, especially fractional distillation. /Higher n-Alkanes/
• Gas-phase dehydrogenation of n-alkanes over noble-metal catalysts yield the corresponding n-alkenes at low conversion rates (ca. 10%) with predominantly internal double bonds. The corresponding alkenes can be isolated in high purity by selective molecular-sieve processes. /Higher n-Alkanes/

Synonyms

HEPTADECANE; n-Heptadecane; 629-78-7; DTXSID7047061; H7C0J39XUM; NSC-172782; DTXCID5027061; CHEBI:16148; RefChem:145618; 211-108-4; Heptadekan; MFCD00009002; Hexadecane, methyl-; Heptadecane, analytical standard; EINECS 211-108-4; C17H36

Frequently Asked Questions

What are the CAS number and molecular formula of n-Heptadecane?

CAS 629-78-7; molecular formula C17H36; molecular weight — g/mol.

What other names is n-Heptadecane known by?

HEPTADECANE, n-Heptadecane, 629-78-7, DTXSID7047061, H7C0J39XUM, NSC-172782.

Is n-Heptadecane classified as hazardous?

14.5% of GHS notifications report no hazard classification (59 of 408).

What are the key physical properties of n-Heptadecane?

Boiling Point: 575.2 °F at 760 mmHg (NTP, 1992); Boiling Point: 303 °C; Melting Point: 72 °F (NTP, 1992); Melting Point: 21.97 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.