Photo Initiator TPO (PI – TPO)

Photo Initiator TPO is a high-quality industrial chemical widely used in coatings, adhesives, inks, resins, plastics, and specialty formulations. It offers reliable performance, chemical stability, and consistent processing characteristics, making it suitable for modern manufacturing and advanced industrial applications.

Technical Specifications
Absorption 0.20%
Acid Value ≤ 0.5mg
Volatility Non-volatile
Packing Available 25kg bag
Melting Point 62°C
Appearance Clear to light yellow liquid
Odour Slight aromatic odour
Molecular Weight 348.37g/mol
Boiling Point –
Distillation Range 300°C
Freezing Point ~91 °C
Specific Gravity 1.25g/cm³
Refractive Index 1.506 at 20 °C
Flash Point 155°C
Specific Heat 1.2kJ/kg·K
Autoignition Temp –

Description

Photo Initiator TPO is a free-radical initiator/photoinitiator used to start polymerization, enabling controlled cure in UV/EB or thermal systems.

Uses

UV-curable coatings/inks/adhesives, especially for LED curing.

Benefits

High reactivity; good through-cure; low migration in many systems.

Safety, Compliance & Notes

Thermal Conductivity 0.21W/m·K.
Electrical Conductivity 0.000000001S/cm
Heat of Formation -790kJ/mol
Heat of Vaporization –
Structure C6H5-P(=O)(C6H5)-C6H5
CAS Number 75980-60-8
EINECS Number 278-355-8
Storage & Packaging Keep tightly closed in a cool, ventilated area; avoid shock/heat; follow SDS for segregation and transport classification. (Applicable to Photo Initiator TPO handling.)
Product Stewardship Implement GMP/chemical hygiene plans: exposure control, spill response, and responsible disposal; verify regulatory status for destination market before shipment. (For Photo Initiator TPO.)
Note Note: For Photo Initiator TPO, verify active content/assay, shelf life, and handling restrictions from the latest SDS/TDS before use.
Notice NOTICE: This sheet is a compilation aid; always rely on the latest supplier documentation and applicable legal requirements for safe handling and performance. (For Photo Initiator TPO.)

Additional information

Weight

1 kg, 10 kg, 30 kg, 200 kg