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Biphenyl

Biphenyl structure

CAS No:
92-52-4
Formula:
C12H10
Chemical Name:
Biphenyl
Synonyms:
1,1′-Biphenyl;Biphenyl;Diphenyl;Phenylbenzene;Bibenzene;1,1′-Diphenyl;Tetrosin LY;Carolid AL;NSC 14916;56481-93-7;72931-46-5;1135443-72-9
Categories:
Organic Chemistry > Hydrocarbons and Derivatives

Description

Biphenyl has a pungent odor, reminiscent of rose on dilution. white crystals 1,1’-Biphenyl is a clear colorless liquid with a pleasant odor and stable organic compound. It is combustible at high temperatures, producing carbon dioxide and water when combustion is complete. Partial combustion produces carbon monoxide, smoke, soot, and low molecular weight hydrocarbons. It is used extensively in the production of heat-transfer fl uids, for example, as an intermediate for polychlorinated biphenyl

Biphenyl Basic Attributes

Molecular Weight：

154.21

Exact Mass：

154.21

BRN：

1634058

EC Number：

202-163-5

HScode：

29029030

Characteristics

PSA：

XLogP3：

3.16/4.09

Appearance：

White to faint yellow Crystalline Powder, Crystals or Flakes

Density：

1.041 g/cm³ @ Temp: 20 °C

Melting Point：

69-71 °C

Boiling Point：

254-255 °C

Flash Point：

113 °C

Refractive Index：

1.571

Water Solubility：

H2O: insoluble ;soluble in alcohol and ether

Storage Conditions：

0-6°C

Vapor Pressure：

9.46 mm Hg ( 115 °C)

Vapor Density：

5.31 (vs air)

Toxicity：

Oral-Rat LD50: 2140 mg/kg; Oral-Mouse LD50: 1900 mg/kg

Flammability characteristics：

In case of fire, high temperature, strong oxidant is flammable; burning emits irritating smoke; inhalation of a small amount of nausea, vomiting, stomach upset, paralysis

Explosive limit：

0.6%, 111°F

Odor：

Pleasant, peculiar odor

Safety Information

Packing level：

III

Hazard category：

Transport codes：

UN 3077 9/PG 3

wgk germany：

hazard class code：

36/37/38-50/53-67-65-62-48/20-11-39/23/24/25-23/24/25-52/53

safety instructions：

23-60-61-62-36/37-33-29-16-9-45

RTECS Number：

DU8050000

Marks：

Xi,N,Xn,F,T

Storage features：

Completely packed, lightly placed; storeroom ventilated, away from open flames, high temperature, and stored separately from oxidants

Explosive characteristics：

Explosive when mixed with air; reacts violently with oxidant

Stability/Shelf Life：

Stable. Combustible. Incompatible with strong oxidising agents.

Precautionary statement(s)：

P305 + P351 + P338

Hazard Statements：

H315-H319-H335-H410

Toxicity

Toxicity class：

moderately toxic

Biphenyl Use and Manufacturing

Methods of Manufacturing

By benzene vapor through the red hot iron tube condensation dehydrogenation. It is obtained by heating distillation of iodobenzene or bromobenzene and metallic sodium or copper.

Uses

As heat transfer agent; fungistat for oranges (applied to inside of shipping container or wrappers); in organic syntheses.

Computed Properties

Molecular Weight:154.21
XLogP3:4
Rotatable Bond Count:1
Exact Mass:154.078250319
Monoisotopic Mass:154.078250319
Heavy Atom Count:12
Complexity:100
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Ethanol

Benzene

Downstream Products

Naphthalene

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