Photoinitiator ITX with Cas 5495-84-1
What is Photoinitiator ITX?
Photoinitiator ITX (Isopropylthioxanthone) is a highly efficient Type II photoinitiator widely utilized in ultraviolet (UV) curing applications, prized for its strong absorption in the medium to long-wave UV spectrum. Its primary function is to absorb UV light energy and, in the presence of a co-initiator (typically an amine), generate free radicals that initiate the polymerization of monomers and oligomers. This mechanism makes ITX a cornerstone technology for producing high-performance, solvent-free coatings and inks with rapid cure speeds and enhanced physical properties.
The appearance of Photoinitiator ITX is a slightly yellow crystalline powder, stable at room temperature, and needs to be stored in a dark sealed container. This substance belongs to the class of thioanthrone photoinitiators, with a maximum absorption wavelength of 382nm, matched with mercury lamp light source. It is mainly used in the fields of UV curable coatings, inks, and photoresists, which can reduce yellowing of the curing system and extend storage life.
Runtai Chemical is a professional and reliable China manufacturer of Photoinitiator ITX with Cas 5495-84-1 with higher purity and lower price. If you interest our Photoinitiator ITX , PLS free to contact us for free sample!
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Dosage:(exact dosage should be subject to customer’s finial product formulation.)
Photoinitiator ITX Description
- Chemical Name:Photoinitiator ITX
- CAS No.: 5495-84-1
- EINECS: 226-827-9
- Molecular Formula: C16H14OS
- Molecular weight: 254.35
- Appearance: Light yellow Crystal
- Assay: 99%min
- Synonyms:2-Isopropylthioxanthone;;Irgacure ITX;QUANTACURE ITX;SPEEDCURE 2-ITX;2-Isopropylthioxanthon;Photocure-Itx;SPEEDCURE ITX;2-Isopropylthioxanthen-9-one;2-(1-Methylethyl)-;Isopropyl Thioxanthone (Mixture of 2 IsoMers and 4 IsoMers)
Photoinitiator ITX Typical Properties
| Item | Specification | Results |
| Appearance | Light yellow Crystal | Conforms |
| Assay | ≥99% | 99.52% |
| Melting Point | 73.0-76.0°C | 73.0-74.5°C |
| Volatiles | ≤0.2% | 0.02% |
| Ash | ≤0.1% | 0.01% |
| Color of solution(450min) | ≥90% | 95.2% |
| Color of solution(500min) | ≥95% | 98% |
| Conclusion | The results conforms with enterprise standards | |
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Photoinitiator ITX Applications
- Photoinitiator ITX (Isopropylthioxanthone) is a vital Type II photoinitiator extensively used in ultraviolet (UV) curing technologies. Its primary function is to absorb UV light and, in conjunction with an amine co-initiator, generate free radicals that rapidly polymerize formulations, transforming liquid resins into solid, cross-linked networks in seconds.
- The most prominent application of ITX is in the printing industry. It is a key component in UV-curable inks for offset, flexographic, and screen printing on various substrates, including paper, cardboard, plastics, and metals. These inks cure instantaneously under UV lamps, enabling high-speed production, superior print quality, and durable, scratch-resistant finishes. Beyond printing, ITX is essential in protective wood and plastic coatings. It provides hard, high-gloss, and chemically resistant surfaces for furniture, flooring, and consumer electronics.
- Furthermore, ITX finds specialized use in electronics, particularly in the solder masks that protect printed circuit boards (PCBs), ensuring precise patterning and insulation. Its efficiency and performance make ITX indispensable for achieving fast, high-quality, and environmentally friendly solvent-free industrial finishes.
Photoinitiator ITX Package & Storage
- Package:20kg/carton
- Storage: Store in a cool place and keep it sealed to avoid direct sunlight.
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