Biphenyl
- CAS No.
- 92-52-4
- Chemical Name:
- Biphenyl
- Synonyms
- DIPHENYL;PHPH;Lemonene;Biphenylyl;cp390;Xenene;mcs1572;BIPHENYL;Bibenzene;carolidal
- CBNumber:
- CB2491271
- Molecular Formula:
- C12H10
- Molecular Weight:
- 154.21
- MOL File:
- 92-52-4.mol
- Modify Date:
- 2024/3/14 15:18:26
| Melting point | 68-70 °C (lit.) |
|---|---|
| Boiling point | 255 °C (lit.) |
| Density | 0.992 |
| vapor density | 5.31 (vs air) |
| vapor pressure | 9.46 mm Hg ( 115 °C) |
| FEMA | 3129 | BIPHENYL |
| refractive index | 1.475 |
| Flash point | 113 °C |
| storage temp. | Store below +30°C. |
| solubility | Soluble in alcohol and ether |
| form | Crystalline Powder, Crystals or Flakes |
| color | White to faint yellow |
| Specific Gravity | 0.992 |
| Odor | pleasant odor |
| Odor Type | green |
| explosive limit | 0.6%, 111°F |
| Water Solubility | insoluble |
| JECFA Number | 1332 |
| Merck | 14,3314 |
| BRN | 1634058 |
| Henry's Law Constant | 2.92 at 25 °C (air stripping-GC, Destaillats and Charles, 2002) |
| Exposure limits | NIOSH REL: TWA 0.2 ppm, IDLH 100 mg/m3; OSHA PEL: TWA 0.2 ppm; ACGIH TLV: TWA 0.2 ppm. |
| Dielectric constant | 20.0（Ambient） |
| Stability | Stable. Combustible. Incompatible with strong oxidising agents. |
| InChIKey | ZUOUZKKEUPVFJK-UHFFFAOYSA-N |
| LogP | 4.008 at 25℃ |
| CAS DataBase Reference | 92-52-4(CAS DataBase Reference) |
| NIST Chemistry Reference | Biphenyl(92-52-4) |
| EPA Substance Registry System | Biphenyl (92-52-4) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS07,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335-H410 | |||||||||
| Precautionary statements | P261-P264-P271-P273-P302+P352-P305+P351+P338 | |||||||||
| Hazard Codes | Xi,N,Xn,F,T | |||||||||
| Risk Statements | 36/37/38-50/53-67-65-62-48/20-11-39/23/24/25-23/24/25-52/53 | |||||||||
| Safety Statements | 23-60-61-62-36/37-33-29-16-9-45 | |||||||||
| OEB | C | |||||||||
| OEL | TWA: 1 mg/m3 (0.2 ppm) | |||||||||
| RIDADR | UN 3077 9/PG 3 | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | DU8050000 | |||||||||
| Autoignition Temperature | 570 °C | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 9 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29029030 | |||||||||
| Toxicity | LD50 orally in rats: 3280 mg/kg (Deichmann) | |||||||||
| IDLA | 100 mg/m3 | |||||||||
| NFPA 704 |
|
Biphenyl price More Price(24)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | W312908 | Biphenyl ≥99% | 92-52-4 | 1SAMPLE | ₹4880.63 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | W312908 | Biphenyl ≥99% | 92-52-4 | 1KG | ₹6987 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | B34656 | Biphenyl ReagentPlus?, 99.5% | 92-52-4 | 30MG | ₹642.19 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | B34656 | Biphenyl ReagentPlus?, 99.5% | 92-52-4 | 1KG | ₹1880.33 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | PHR2358 | Biphenyl Pharmaceutical Secondary Standard; Certified Reference Material | 92-52-4 | 1G | ₹16131.75 | 2022-06-14 | Buy |
Biphenyl Chemical Properties,Uses,Production
Description
Biphenyl, also called diphenyl, consists of two benzene rings joined by a single bond. It exists as colorless to yellowish crystals, has a distinctive odor, and occurs naturally in oil, natural gas, and coal tar.
Chemical Properties
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 biphenyls, and dye carriers for textile dyeing. It is also used as a mold retardant in citrus fruit wrappers, in the formation of plastics, optical brighteners, and hydraulic fluids.
Physical properties
White scales with a pleasant but peculiar odor. Odor threshold concentration is 0.83 ppb (quoted, Amoore and Hautala, 1983).
Occurrence
Reported found in coal tar, bilberry, carrots, peas, potato, bell pepper, rum, cocoa, tomato, coffee, roasted peanuts, olive (Olea europae), buckwheat and tamarind (Tamarindus indica L).
Uses
Biphenyl is used as an antifungal agent to preserve citrus fruit, in citrus wrappers to retard mold growth, in heat transfer fluids, in dye carriers for textiles and copying paper, as a solvent in pharmaceutical production, in optical brighteners, and as an intermediate for the production of a wide range of organic compounds.
Preparation
By thermal dehydrogenation of benzene.
Definition
ChEBI: A benzenoid aromatic compound that consists of two benzene rings connected by a single covalent bond. Biphenyl occurs naturally in coal tar, crude oil, and natural gas. Formerly used as a fungicide for citrus crops.
General Description
A clear colorless liquid with a pleasant odor. Flash point 180°F. Insoluble in water. Vapors are heavier than air. Used to manufacture other chemicals and as a fungicide.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
Biphenyl is incompatible with oxidizers.
Health Hazard
Exposures to 1,1’-biphenyl cause acute effects with symptoms that include, but are not limited to, polyuria, accelerated breathing, lacrimation, anorexia, weight loss, muscular weakness, coma, fatty liver cell degeneration, and severe nephrotic lesions. Exposure to biphenyl fumes for short periods of time causes nausea, vomiting, irritation of the eyes and respiratory tract, and bronchitis. Breathing small amounts of 1,1’-biphenyl over long periods of time causes damage to the liver and the nervous system of exposed workers. Breathing the mists, vapors, or fumes may irritate the nose, throat, and lungs. Depending on the concentration and duration of exposure, the symptoms include, but are not limited to, sore throat, coughing, labored breathing, sneezing, a burning sensation, and the effects of CNS depression. Symptoms may include headache, excitation, euphoria, dizziness, incoordination, drowsiness, light-headedness, blurred vision, fatigue, tremors, convulsions, loss of consciousness, coma, respiratory arrest, and death, depending on the concentration and duration of exposure
Fire Hazard
Combustible. Emits toxic fumes under fire conditions.
Safety Profile
Poison by intravenous route.Moderately toxic by ingestion. A powerful irritant byinhalation in humans. Human systemic effects byinhalation of very small amounts: flaccid paralysis, nauseaor vomiting, and other unspecified gastrointestinal effects.Que
Potential Exposure
Biphenyl is a fungicide (pesticide). It is also used as a heat transfer agent, dye carrier, and as an intermediate in organic synthesis.
Metabolic pathway
Biphenyl is a stable compound. It has a restricted use as a fungistat applied to citrus packing material. This has generated studies on its toxicity and metabolism in mammals and residue studies in stored fruit. Only limited information on its environmental fate has been published.
storage
1,1’-Biphenyl should be kept stored in tightly closed containers in a cool, dry, isolated, and properly ventilated area, away from heat, sources of ignition, incompatibles, and contact with strong oxidizers.
Shipping
UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1—Poisonous materials, Technical Name Required.
Purification Methods
Crystallise biphenyl from EtOH, MeOH, aqueous MeOH, pet ether (b 40-60o) or glacial acetic acid. Free it from polar impurities by passage through an alumina column in *benzene, followed by evaporation. The residue has been purified by distillation in a vacuum and by zone refining. Treatment with maleic anhydride removes anthracene-like impurities. It has been recrystallised from EtOH followed by repeated vacuum sublimation and passage through a zone refiner. [Taliani & Bree J Phys Chem 88 2351 1984, Beilstein 5 H 576, 5 I 271, 5 II 479, 5 III 1726, 5 IV 1807.]
Incompatibilities
Mist may form explosive mixture with air. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides.
Waste Disposal
Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.
Precautions
Occupational workers should be careful during use and chemical management because the fi nely dispersed particles of 1,1’-biphenyl form explosive mixtures in air
Biphenyl Preparation Products And Raw materials
Raw materials
1of2
chevron_rightPreparation Products
1of7
chevron_right| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| GLR Innovations | +91 9891111994 | New Delhi, India | 4542 | 58 | Inquiry |
| ANJI BIOSCIENCES | +91-9000100077 +91-9000100077 | Hyderabad, India | 430 | 58 | Inquiry |
| Zuhhad international | +91-8454840801 +91-8454840801 | Mumbai, India | 21 | 58 | Inquiry |
| HJ AROCHEM | +91-8690768060 +91-9724420086 | Ahmedabad, India | 171 | 58 | Inquiry |
| JSK Chemicals | +919879767970 | Gujarat, India | 3756 | 58 | Inquiry |
| Otto Chemie Pvt Ltd | +91-2222070099 +91-2266382599 | Maharashtra, India | 429 | 58 | Inquiry |
| LANXESS India Pvt. Ltd. | +91-8356878763 +91-8356878763 | Maharashtra, India | 190 | 58 | Inquiry |
| Molychem | 08048372666Ext 559 | Mumbai, India | 577 | 58 | Inquiry |
| Sisco Resech Laboratories Private Limited | +91-22-4268 5800 | Mumbai, India | 655 | 58 | Inquiry |
| Innovative Synthetic Molecules | +91 40-24111684 | Hyderabad, India | 527 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| GLR Innovations | 58 |
| ANJI BIOSCIENCES | 58 |
| Zuhhad international | 58 |
| HJ AROCHEM | 58 |
| JSK Chemicals | 58 |
| Otto Chemie Pvt Ltd | 58 |
| LANXESS India Pvt. Ltd. | 58 |
| Molychem | 58 |
| Sisco Resech Laboratories Private Limited | 58 |
| Innovative Synthetic Molecules | 58 |
Related articles
- The unique characteristics of biphenyl
- Biphenyl is an organic compound with chemical formula of C12H10. It is a white crystalline powder, insoluble in water.
- Apr 15，2022