Phenylethyl phenyl ethane(PEPE) Phenylethyl phenyl ethane, insulating oil ,PEPE

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Phenylethyl phenyl ethane(PEPE)

Phenylethyl phenyl ethane insulating oil is generally called pepe oil,
with excellent physical and chemical dielectric capacity

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Phenylethyl phenyl ethane insulating oil is generally called pepe oil,
with excellent physical and chemical dielectric capacity

Name of product	Phenylxylylethane(PXE)	Phenylethyl phenyl ethane(PEPE)
Components	Phenyl xylyl ethane	Phenyl ethyl phenyl ethane
Molecular formula	C₁₆H₁₈	C₁₆H₁₈
Molecular weight	210	210
Synthesis	Synthesize it with styrene and orthoxylene as raw material through purification and distillation and refining.	Synthesize it with styrene and orthoxylene as raw material through purification and distillation and refining.
Structural formula
Explanation	PXE and PEPE is isomer
Name of index	PXE	PEPE
Appearance	Colorless or pale yellow transparent liquid,no suspended matter,no precipitation,no mechanical impurity	Colorless or pale yellow transparent liquid,no suspended matter,no precipitation,no mechanical impurity
Density,20g/cm³	0.960-0.990	0.960-0.999
Refractive index,n²⁵_D	1.5600~1.5700	1.5500~1.5700
Dispersive index,25	>180	>185
Acid number,mg KOH/g	< 0.015	< 0.015
Flash point(closed cup),	≥140	≥135
Freezing point,	< -40	< -60
Kinetic viscosity(cst),mm²/s,40	≤5.0	≤4.0
Dielectric strength,50Hz,kv/2.5mm	≥55	≥60
Dielectric loss factor,tg δ ,90,50Hz	≤0.001	≤0.0010
Volume resistivity,pv,Ω·m,90	≥1x1012	≥1x1012
Relative dielectric constant,ε,50Hz,25	2.5~2.6	2.45~2.6`
Mosisture,ppm	<100	<100
Property of evolved gas(speed of evolved gas )method A,μl/min	<-100	<-100