Appearance: Colorless transparent liquid


Chroma, Hazen : <20


Turbidity,NTU : <4


Viscosity 25 ℃, mm2 / s :  3.9


Density, 25 ℃:  0.95


Heavy metal content (Pb indicate), :  <5


Mineral oil content, mg / kg  :  <0.1


Surface tension, 25 ℃, mN / m, : 18.3


Odor:  slight odor odorless


Flash point (closed cup), ℃: 80


Boiling point, 101.3kpa, ° C:  210


Crystallization point, ℃, about  :  -40


The vapor pressure, 20 ℃, KPa : 0.025


Evaporation Rate (g/ min), NF30 -302, at 80℃:  0. 075


Volatile Time (sec), DIN 5 3 -: 170, at 23℃ 8400


Refractive index, 2 5 ℃, about: 1. 395


Octamethyl cyclotetrasiloxane (D 4) content,%:  <0. 9


Decamethyl cyclopentasiloxane (D5) content,%:  ≥97


Decamethyl cyclopentasiloxane (D5) + twelve methylcyclohexyl six siloxane (D6) content,% : ≥99.7


Acid value (NaOH 0.01N / 2g, ml) : <0.15


IOTA D5 Cyclopentasiloxane-IOTA (phenylsilicone.com)