2-氯-1,1'-联苯

Description

2-Chloro-1,1'-biphenyl · CAS 2051-60-7 · C12H9Cl. UNII 2E08SP4D3P. Boiling Point: 554 to 617 °F at 760 mmHg (NTP, 1992); Boiling Point: 290-325 °C; Flash Point: 286 °F (NTP, 1992).

Identification

CAS Registry Number	2051-60-7
PubChem CID	249266
Molecular formula	C12H9Cl
IUPAC name	1-chloro-2-phenylbenzene
UNII (FDA)	2E08SP4D3P

Computed Descriptors

Molecular Weight	188.65
XLogP3	4.5
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	1
Exact Mass	188.0392780
Monoisotopic Mass	188.0392780
Topological Polar Surface Area	0
Heavy Atom Count	13
Formal Charge	0

Physical & Chemical Properties

Boiling Point	554 to 617 °F at 760 mmHg (NTP, 1992)
Boiling Point	290-325 °C
Flash Point	286 °F (NTP, 1992)
Solubility	In water, 1.45 mg/L at 25 °C
Density	1.270-1.280/15.5 °C
Density	1.44 @ 30°C
Vapor Pressure	4.06X10-3 mm Hg at 25 °C
LogP	log Kow = >4.54
LogP	4.42

Physical description & handling notes

• Pcb-1232 is a viscous oily liquid. (NTP, 1992)
• Clear oil
• ... Colorless mobile oil
• Lower chlorinated Aroclors (1221, 1232, 1016, 1242, and 1248) are colorless mobile oils. Increasing chlorine content results in mixtures taking on the consistency of viscous liquids (Aroclor 1254) or sticky resins (Aroclors 1260 and 1262). Arclors 1268 and 1270 are white powders.
• 152-154 °C; Cleveland open cup
• Solubility in water varies because Aroclors are variable mixtures.

Regulatory Status

GHS notification summary	2.4% (1 / 42)

GHS Hazard Classification

GHS notification summary	2.4% (1 / 42)
Reported hazard statements	H373 (97.7%), H400 (97.7%), H410 (97.7%)

Documented Uses

• Summary of former end uses for various Aroclors:
• PCBs were used as coolants and lubricants in transformers, capacitors, and other electrical devices (such as fluorescent lights and refridgerators) produced before 1977. PCBs may contaminate the air and water near hazardous waste sites. In addition, PCBs bioaccumulate in the environment and may be found in fish, meat, and dairy products. (L4)
• PCBs /were/ ... prepared industrially by the chlorination of biphenyl with anhydrous chlorine in the presence of a catalyst such as iron filings or ferric chloride. The products are complex mixtures of chlorobiphenyls, whose degree of chlorination depends principally on the time of contact (12-36 hr) of the biphenyl with anhydrous chlorine. The crude product is blown with air, and a small amount of lime is added to remove hydrogen chloride and ferric chloride. The resulting chlorinated mixtures are batch-distilled
• Total USA sales in 1970 amounted to 33.2 million kg of PCBs and comprised ... 118 thousand kg Aroclor 1232.
• /Production/ was discontinued in October 1977
• The Aroclors are characterized by four digit numbers. The first two digits indicate that the mixture contains biphenyls (12), triphenyls (54) or both (25, 44); the last two digits give the weight percent of chlorine in the mixture (e.g., Aroclor 1242 contains biphenyls with approximately 42% chlorine). /Polychlorinated biphenyls/

Synonyms

2-CHLOROBIPHENYL; 2051-60-7; 2-Chloro-1,1'-biphenyl; o-Chlorobiphenyl; 1-Chloro-2-phenylbenzene; 2-Chlorodiphenyl; o-Chlorodiphenyl; 2-Monochlorobiphenyl; 1,1'-Biphenyl, 2-chloro-; PCB 1; Biphenyl, 2-chloro-; 2-Chlorbiphenyl; 2E08SP4D3P; DTXSID6040298; NSC-67354; CHEBI:34269

Frequently Asked Questions

What are the CAS number and molecular formula of 2-Chloro-1,1'-biphenyl?

CAS 2051-60-7; molecular formula C12H9Cl; molecular weight — g/mol.

What other names is 2-Chloro-1,1'-biphenyl known by?

2-CHLOROBIPHENYL, 2051-60-7, 2-Chloro-1,1'-biphenyl, o-Chlorobiphenyl, 1-Chloro-2-phenylbenzene, 2-Chlorodiphenyl.

Is 2-Chloro-1,1'-biphenyl classified as hazardous?

2.4% of GHS notifications report no hazard classification (1 of 42).

What are the key physical properties of 2-Chloro-1,1'-biphenyl?

Boiling Point: 554 to 617 °F at 760 mmHg (NTP, 1992); Boiling Point: 290-325 °C; Flash Point: 286 °F (NTP, 1992); Solubility: In water, 1.45 mg/L at 25 °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.