Home Categories Organic Chemistry Diphenyl ether
A3327812

Diphenyl ether , ≥99.9%(GC) , 101-84-8

Synonym(s):
Diphenyl ether;Diphenyl oxide;Phenyl ether;Phenyl ether, Diphenyl oxide

CAS NO.:101-84-8

Empirical Formula: C12H10O

Molecular Weight: 170.21

MDL number: MFCD00003034

EINECS: 202-981-2

Pack Size Price Stock Quantity
5ML RMB62.40 In Stock
25ML RMB158.40 In Stock
100ml RMB446.40 In Stock
others     Enquire
Update time: 2022-07-08

PRODUCT Properties

Melting point: 26 °C
Boiling point: 259 °C(lit.)
Density  1.073 g/mL at 25 °C(lit.)
vapor density  >5.86 (25 °C, vs air)
vapor pressure  <1 mm Hg ( 20 °C)
FEMA  3667 | DIPHENYL ETHER
refractive index  n20/D 1.579(lit.)
Flash point: >230 °F
storage temp.  Store below +30°C.
solubility  alcohol: soluble(lit.)
form  Colorless liquid
Specific Gravity 1.073
color  White or Colorless to Almost white or Almost colorless
Relative polarity 2.8
Odor Weak geranium.
explosive limit 0.8-1.5%(V)
Odor Threshold 0.1ppm
Odor Type green
Water Solubility  insoluble
FreezingPoint  27℃
Merck  14,7288
JECFA Number 1255
BRN  1364620
Henry's Law Constant 2.13 at 20 °C (approximate - calculated from water solubility and vapor pressure)
Exposure limits NIOSH REL: TWA 1 ppm (7 mg/m3), IDLH 100 ppm; OSHA PEL: TWA 1 ppm; ACGIH TLV: TWA 0.1, STEL 2 ppm (adopted).
Dielectric constant 3.7(30℃)
InChIKey USIUVYZYUHIAEV-UHFFFAOYSA-N
LogP 4.21 at 25℃

Description and Uses

Diphenyl ether (diphenyl oxide) is a colorless liquid with a floral odor. It is a white, crystalline solid at temperatures below 80ºF (27ºC). It has low volatility, low solubility in water, and is stable at high temperatures. Avoid contact with oxidizing materials.
Liquid diphenyl oxide is used primarily in industry. It is used in the industrial setting as a heat transfer fluid. It is the major component of Dowtherm A® (an eutectic mixture of phenyl ether and biphenyl) and further as a chemical intermediate in the production of surface-active agents and hightemperature lubricants, and in perfumery due to its geranium-like odour (ACG99b). It is also used as a chemical intermediate in the manufacture of surfactants and fire retardants.
Diphenyl oxide (DPO) is manufactured using the direct phenol method.

Diphenyl ether is widely used as a heat transfer agent and a dye carrier. It can be used alone or as a mixture with other materials. Because of its reactivity, It can also be used as a raw material or chemical intermediate to produce commercial products. Diphenyl ether is used in the production of:

  1. Diphenyl ether is employed as a processing aid in the production of polyesters. It acts as a chemical intermediate in the production of surface active agents and high temperature lubricants, fire retardants like polybrominated diphenyl ethers (PBDEs) and fragrance for detergents.
  2. Heat transfer media – like DOWTHERMTM fluids used for heating industrial processes
  3. Alkylated diphenyl oxides – used to make surfactants, greases and lubricants
  4. Halogenated diphenyl oxides – used in insecticides, wood preservatives, and flame retardants for appliance casings in consumer electronic products
  5. High temperature solvents
  6. Coatings
  7. Textile dye labeling
  8. Plastics – like ethylene-propylene-diene monomer (EPDM) rubber that is used for membrane roofing materials
  9. Diphenyl ether plays a vital role in the Ferrario reaction to produce phenoxathiin, which finds application in polyamide and polyimide production. Involving similar reactions, diphenyl ether is a significant side product in the high-pressure hydrolysis of chlorobenzene in the production of phenol.
  10. Diphenyl ether is found in alcoholic beverages. Diphenyl ether is present in muscat grapes, green tea, vanilla, lemon balm, buckwheat, potato chips and grilled beef. Diphenyl ether is a flavouring ingredient.

Safety

Symbol(GHS) 
GHS07,GHS09
Signal word  Warning
Hazard statements  H319-H410
Precautionary statements  P264-P273-P280-P305+P351+P338-P337+P313-P391
Hazard Codes  N,Xi,T
Risk Statements  51/53-36/37/38-39/23/24/25-23/24/25-36/38-36
Safety Statements  60-61-57-37/39-26-45-36/37
OEB B
OEL TWA: 1 ppm (7 mg/m3)
RIDADR  UN 3077 9/PG 3
WGK Germany  2
RTECS  KN8970000
Autoignition Temperature 610 °C
TSCA  Yes
HS Code  2909 30 10
HazardClass  9
PackingGroup  III
Toxicity LD50 orally in Rabbit: 2450 mg/kg LD50 dermal Rabbit > 7940 mg/kg
IDLA 100 ppm

RELATED PRODUCTS