八氯萘

Description

Octachloronaphthalene · CAS 2234-13-1 · C10Cl8. UNII BQ6EO9GJXE. Boiling Point: 824 °F at 760 mmHg (NTP, 1992); Boiling Point: 440 °C @ 101.3 kPa (760 mm Hg); 246 °C @ 0.067 kPa (0.5 mm Hg); Boiling Point: 440 °C.

Identification

CAS Registry Number	2234-13-1
PubChem CID	16692
Molecular formula	C10Cl8
IUPAC name	1,2,3,4,5,6,7,8-octachloronaphthalene
UNII (FDA)	BQ6EO9GJXE

Computed Descriptors

Molecular Weight	403.7
XLogP3	8.2
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	0
Exact Mass	403.744921
Monoisotopic Mass	399.750822
Topological Polar Surface Area	0
Heavy Atom Count	18
Formal Charge	0

Physical & Chemical Properties

Boiling Point	824 °F at 760 mmHg (NTP, 1992)
Boiling Point	440 °C @ 101.3 kPa (760 mm Hg); 246 °C @ 0.067 kPa (0.5 mm Hg)
Boiling Point	440 °C
Boiling Point	770 °F
Melting Point	387 to 388 °F (NTP, 1992)
Melting Point	185-197 °C
Melting Point	192 °C
Melting Point	197.5 °C
Melting Point	365 °F
Flash Point	flash point > 430 °C

Physical description & handling notes

• Octachloronaphthalene is a pale yellow solid with an aromatic odor. (NTP, 1992)
• Waxy, pale-yellow solid with an aromatic odor; [NIOSH]
• WAXY YELLOW SOLID IN VARIOUS FORMS WITH CHARACTERISTIC ODOUR.
• Waxy, pale-yellow solid with an aromatic odor.
• Crystals from cyclohexane
• NEEDLES FROM BENZENE & CARBON TETRACHLORIDE

Regulatory Status

GHS notification summary	8.9% (4 / 45)

GHS Hazard Classification

GHS notification summary	8.9% (4 / 45)
Reported hazard statements	H302 (91.1%), H372, H413, H316, H319, H373

Documented Uses

• Used as additives to lubricants and cable insulation (fire retardants); [ACGIH]
• The manufacturing of chlorinated naphthalenes (Halowax) has been discontinued in the USA since 1977.
• ... Except in special cases, chlorinated naphthalenes are no longer used in capacitors or electric cable coverings. Their use as lubricants has also been largely discontinued. Practice in individual countries varies, however. In the USA, for example, chlorinated naphthalenes are no longer used as wood preservatives. /Chlorinated naphthalenes/
• Octachloronaphthalene has been utilized as a fireproof and waterproof additive in cable insulation and in other protective coating materials ... /and/ as an additive to lubricants.
• Polychlorinated naphthalenes (PCNs) ... can be synthesized by the chlorination of naphthalene. /Polychlorinated naphthalenes/
• ... Exact yearly or total production figures are obscure. In 1972, the estimated market for PCNs was less than 2300 metric tons. /Polychlorinated naphthalenes/

Synonyms

OCTACHLORONAPHTHALENE; 2234-13-1; Perchloronaphthalene; Naphthalene, octachloro-; Perna; 1,2,3,4,5,6,7,8-Octachloronaphthalene; Octachloro naphthalene; BQ6EO9GJXE; NSC-243655; DTXSID6025800; RefChem:167550; DTXCID105800; DTXSID60872427; 218-778-7; Octachloronapthalene; MFCD00145026

Frequently Asked Questions

What are the CAS number and molecular formula of Octachloronaphthalene?

CAS 2234-13-1; molecular formula C10Cl8; molecular weight — g/mol.

What other names is Octachloronaphthalene known by?

OCTACHLORONAPHTHALENE, 2234-13-1, Perchloronaphthalene, Naphthalene, octachloro-, Perna, 1,2,3,4,5,6,7,8-Octachloronaphthalene.

Is Octachloronaphthalene classified as hazardous?

8.9% of GHS notifications report no hazard classification (4 of 45).

What are the key physical properties of Octachloronaphthalene?

Boiling Point: 824 °F at 760 mmHg (NTP, 1992); Boiling Point: 440 °C @ 101.3 kPa (760 mm Hg); 246 °C @ 0.067 kPa (0.5 mm Hg); Boiling Point: 440 °C; Boiling Point: 770 °F.

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.