... : Colourless,transparent oily liquid,b.p.216oc(4mmHg),viscosity 14 c.p.(20oc),refractive index 1.4434(20oc). Tri-iso-octyl ... oily liquid,b.p.216°C(4mmHg),viscosity 14 c.p.(20°C),refractive index 1.4434(20°C).Specification:SpecificationSuper GradeFirst GradeColourity(Pt-Co ... /cm30.924±0.003Content,% ≥99.098.5Flash point,°C ≥192190Surface tension(20~25°C),mN/m≥18.018.0Uses:It is now ...