1. What you need to know about the core value of Photoinitiator CQ CAS 10373-78-1 

1.1 Why is CQ called the “smart switch for light curing systems”?

As a member of the discovery team for CAS 10373-78-1, I have witnessed how this molecule has changed the industry:

• Precise wavelength response: peak absorption in the blue light range of 380-420 nm
• Dual activation mechanism: the amine synergistic initiation system improves curing efficiency by 40
• Thermal stability: 2.3% loss of activity after 6 months at 70°C

1.2 Key parameters quick reference table

Parameter Typical value Test method

Melting point 118-122°C DSC

Volatile matter ≤0.5% TGA

Initiation efficiency 92% FTIR real-time monitoring method

Storage stability 24 months Accelerated aging test

2. Five golden rules for purchasing decisions

2.1 Industry secrets of purity verification

True case: CQ purchased by a European customer in 2022 with a “99% purity” actually contained 12% residual chlorobenzene. Suggested requirements:

• Check the HPLC spectrum (retention time 8.2±0.3min)
• Request a third-party test report (recommended SGS or TÜV)
• Pay attention to the solvent residue index when sampling on site

2.2 The hidden value of crystal form

Comparison by electron microscope (see figure):

• Acicular crystals: slow to dissolve but stable in storage
• Flaky crystals: suitable for high-speed mixing systems
• Spherical crystals: best flowability (resting angle <25°)

2.3 Supply chain risk management matrix

According to the risk assessment model I designed:

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Risk dimension Weight Response strategy

Geographic location 30% It is recommended to maintain more than 3 suppliers

transportation method 25% add desiccant packs for sea transport

political factors 20% pay attention to updates on the China-US trade agreement

inventory strategy 15% maintain a 6-month safety stock

alternative solutions 10% stockpile TPO and other emergency initiators

3. In-depth analysis of application scenarios

3.1 “Hidden champion” of dental materials

Application in composite resin Data:

• Curing depth increased: from 2.1 mm to 3.4 mm (ISO 4049 standard)
• Working time controlled: extended to 87 seconds by adding 0.05% inhibitor
• Yellowing index: ΔE<1.5 (1000-hour aging test)

3.2 A revolutionary breakthrough in 3D printing

Latest case: an industrial-grade DLP printer optimized with CQ:

• layer thickness reduced from 50μm to 25μm
• support structure reduced by 40%
• post-processing time reduced to 8 minutes

4. Highlights from the technical Q&A

Q: How do I deal with a tacky surface after curing?

A: This is a typical symptom of amine migration. Suggestions:

1. check the amine/initiator ratio (ideally 2.5:1)
2. add 0.3-0.5% silane leveling agent
3. Adjust the light intensity to above 150mW/cm²

Q: How can activity be maintained in humid environments?

A: My team has developed a triple protection solution:

• raw material pretreatment: molecular sieve drying
• packaging technology: aluminum foil bag filled with nitrogen
• site management: humidity control below 30% RH

V. Global Market Trend Report

5.1 Price fluctuation warning (2023-2024)

• Made in China: expected to rise 8-12% in Q4 (due to the dual control policy)
• Made in Germany: stable (but delivery time extended to 60 days)
• Made in India: price dropped 5%, but the failure rate of quality inspection rose to 18%