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Biphenyl

CAS Number
92-52-4
EC Number
202-163-5
Chemical Formula
C12H10
Molecular Weight
154.21 g/mol

Description

Biphenyl (CAS 92-52-4 ), also known as diphenyl and approved as E230 in food applications, is an aromatic hydrocarbon used industrially as a heat transfer medium and chemical intermediate. Its stability at elevated temperatures and antimicrobial activity make it a practical functional input across food packaging, chemical synthesis, and high-temperature processing. As E230, it is applied to citrus fruits. This application suppresses mold growth during storage and transport, which is a critical function for importers managing long-haul fresh produce logistics. In heat transfer systems, it is blended with diphenyl oxide. These formulations create high-temperature thermal fluids used in chemical reactors and industrial heating circuits. Biphenyl also serves as a key intermediate in the synthesis of liquid crystal polymers and pharmaceuticals. In fragrance formulation, it contributes a subtle floral-geranium note and is registered under FEMA 3129 for flavor use. Biphenyl is supplied as white to pale yellow crystalline flakes or powder. Standard commercial grades include technical grade for industrial and heat transfer applications, and food/ FCC -grade material for use under E230 regulatory frameworks. Purity levels typically range from 99% upward. Contact us for supply of Biphenyl Request Quote

Other Names (Synonyms)

E230 | diphenyl | 1,1′-biphenyl | Bibenzene | Lemonene | Xenene | 1,1'-Diphenyl | Phenador-X

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point69-71 °C
Boiling Point254-255 °C
Density1.041 g/cm³ @ Temp: 20 °C
Flash Point113 °C
AppearanceBiphenyl is a combustible, white flakes or crystalline solid. Pleasant, characteristic odor.
ColorWhite to faint yellow
Odorpleasant odor
FormCrystalline Powder, Crystals or Flakes
Water Solubilityinsoluble
Vapor Pressure9.46 mm Hg ( 115 °C)
Refractive Index1.475
Log P4.008 at 25℃

Safety & Handling

Warning
GHS07· IrritantGHS09· EnvironmentGHS06· ToxicGHS08· Health Hazard

Hazard Statements

H303May be harmful if swallowed
H313May be harmful in contact with skin
H315Causes skin irritation
H316Causes mild skin irritation
H319Causes serious eye irritation
H320Causes eye irritation
H330Fatal if inhaled
H335May cause respiratory irritation
H350May cause cancer
H351Suspected of causing cancer
H372Causes damage to organs through prolonged or repeated exposure
H373May causes damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P284In case of inadequate ventilation wear respiratory protection.
P316Get emergency medical help immediately.
P318IF exposed or concerned, get medical advice.
P319Get medical advice/attention if you feel unwell.
P320Specific treatment is urgent (see … on this label).
P321Specific treatment (see … on this label).
P391Collect spillage.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P233Store in a well-ventilated place. Keep container tightly closed.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29029030
UN Number3077
ADR Class9
Packing GroupIII
Storage Class13 - Non Combustible Solids
WGK (Germany)2