二十三烷

Description

tricosane · CAS 638-67-5 · C23H48. UNII T166B8R1VC. Boiling Point: 716.4 °F at 760 mmHg (NTP, 1992); Boiling Point: 381 °C; Boiling Point: BP: 199-200 °C at 4 mm Hg.

Identification

CAS Registry Number	638-67-5
PubChem CID	12534
Molecular formula	C23H48
IUPAC name	tricosane
UNII (FDA)	T166B8R1VC

Computed Descriptors

Molecular Weight	324.6
XLogP3	12.1
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	20
Exact Mass	324.375601531
Monoisotopic Mass	324.375601531
Topological Polar Surface Area	0
Heavy Atom Count	23
Formal Charge	0

Physical & Chemical Properties

Boiling Point	716.4 °F at 760 mmHg (NTP, 1992)
Boiling Point	381 °C
Boiling Point	BP: 199-200 °C at 4 mm Hg
Melting Point	117.7 °F (NTP, 1992)
Melting Point	47.4 °C
Flash Point	113 °C (235 °F) - closed cup
Density	Density: 0.7785 g/cu cm at 48 °C

Physical description & handling notes

• Leafs (ether-alcohol). (NTP, 1992)
• Solid; [CAMEO] White flakes; [Alfa Aesar MSDS]
• Leaflets from ethyl ether-alcohol
• Glittering leaflets
• White solid
• Odorless

Regulatory Status

GHS notification summary	100% (94 / 94)

GHS Hazard Classification

GHS notification summary	100% (94 / 94)

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/
• 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

TRICOSANE; n-Tricosane; 638-67-5; T166B8R1VC; NSC-78487; DTXCID5027697; DTXSID7047699; CHEBI:32934; RefChem:52063; 211-347-4; Docosane, methyl-; MFCD00009350; Tricosane, 99%; CH3-[CH2]21-CH3; EINECS 211-347-4; NSC 78487

Frequently Asked Questions

What are the CAS number and molecular formula of tricosane?

CAS 638-67-5; molecular formula C23H48; molecular weight — g/mol.

What other names is tricosane known by?

TRICOSANE, n-Tricosane, 638-67-5, T166B8R1VC, NSC-78487, DTXCID5027697.

Is tricosane classified as hazardous?

100% of GHS notifications report no hazard classification (94 of 94).

What are the key physical properties of tricosane?

Boiling Point: 716.4 °F at 760 mmHg (NTP, 1992); Boiling Point: 381 °C; Boiling Point: BP: 199-200 °C at 4 mm Hg; Melting Point: 117.7 °F (NTP, 1992).

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.