In the field of organosilicon materials, Octaphenylcyclotetrasiloxane (IOTA AKT) has become an indispensable key raw material in many industries due to its unique properties and wide - range of applications. Its product grade is AKT, with the Chinese name being Octaphenylcyclotetrasiloxane, the English name Octaphenylcyclotetrasiloxane, the CAS number 546 - 56 - 5, the molecular formula C48H40O4Si4, the chemical structure formula [(C6H5)2SiO]4, and the molecular weight 793.18.

In terms of physical and chemical properties, it appears as a white powdery crystal, with a purity of ≥99.0%. The melting point ranges from 160 - 205°C, the boiling point is 334°C, and the flash point is 200°C. Regarding solubility, it is insoluble in water but soluble in general chemical solvents.

Octaphenylcyclotetrasiloxane has a wide range of uses. It is an important raw material for synthesizing intermediates and can be used to synthesize high - temperature - resistant phenyl silicone oil and other polymer compounds. In many practical cases, it plays a significant role. For example, in a heat - dissipation coating formula, it works together with other components to give the coating good heat - dissipation performance, strong adhesion, high stability, and no toxic side effects.