(diphenylphosphoryl)(2,4,6-trimethylphenyl)methanone
diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide
CAS: 75980-60-8
Molecular Formula: C22H21O2P
(diphenylphosphoryl)(2,4,6-trimethylphenyl)methanone - Names and Identifiers
(diphenylphosphoryl)(2,4,6-trimethylphenyl)methanone - Physico-chemical Properties
| Molecular Formula | C22H21O2P |
| Molar Mass | 348.37 |
| Density | 1.12g/mLat 25°C(lit.) |
| Melting Point | 88-92°C(lit.) |
| Boling Point | 519.6±60.0 °C(Predicted) |
| Flash Point | >230°F |
| Water Solubility | 3.4mg/L at 20℃ |
| Solubility | soluble in Methanol |
| Vapor Presure | 0Pa at 25℃ |
| Appearance | White Crystal |
| Color | Light yellow to Yellow to Green |
| Maximum wavelength(λmax) | ['400nm(DMF)(lit.)'] |
| Storage Condition | Sealed in dry,Room Temperature |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Refractive Index | n20/D 1.475(lit.) |
| MDL | MFCD00192110 |
| Physical and Chemical Properties | White crystals. |
| Use | Used for white system, can be used for UV curing coating, printing ink, UV curing adhesive, optical fiber coating, etc |
(diphenylphosphoryl)(2,4,6-trimethylphenyl)methanone - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R62 - Possible risk of impaired fertility R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S36/37 - Wear suitable protective clothing and gloves. |
| UN IDs | UN 3077 9 / PGIII |
| WGK Germany | 2 |
| RTECS | SZ0395000 |
| HS Code | 29319090 |
| Hazard Class | 9 |
| Packing Group | III |
(diphenylphosphoryl)(2,4,6-trimethylphenyl)methanone - Introduction
It is a photoinitiator, mainly used for silk screen printing ink, lithographic printing ink, flexo printing ink and wood coating.
Last Update：2022-10-16 17:28:27
(diphenylphosphoryl)(2,4,6-trimethylphenyl)methanone - Reference Information
| LogP | 3.1 at 23℃ |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | photoinitiator TPO is an efficient free radical (1)-type, highly efficient photoinitiator with absorption in the long wavelength range. Due to its wide absorption range, the effective absorption peak is 350 ~ 400nm, and the absorption peak is about 420nm, which is longer than that of the conventional initiator, after the light can be generated benzoyl and phosphoryl two free radicals, can initiate polymerization, so the light curing speed is fast, it also has a photo bleaching effect, suitable for thick film Deep curing and coating characteristics of no yellow, with low volatility, suitable for water-based. |
| application field | used for white system, can be used for UV curing coating, printing ink, UV curing adhesive, optical fiber coating, photoresist, photopolymerization printing plate, stereolithography resin, composite material, tooth filling material, etc. |
| Application | is a photoinitiator, which is mainly used for screen printing ink, lithographic printing ink, flexo printing ink and wood coating. TPO in the white or high titanium dioxide pigment surface can be completely cured. Widely used in a variety of coatings, because of its excellent absorption properties, making it particularly suitable for silk printing ink, lithography, flexo printing ink, wood coating. No yellowing of coating, low post-polymerization effect and no residue. It can also be used for transparent coatings, especially for products with low odor requirements. When used alone in unsaturated polyesters of styrene-containing systems, it has a high initiation efficiency. For the acrylate system, especially the colored system, usually need to be used with amine or acrylamide, at the same time and other photo initiator compound, in order to achieve the complete curing of the system is particularly suitable for low yellowing, curing of White systems and thick film layers. The photoinitiator TPO can be used in combination with the PDB 240 or CBP 393 to improve the curing efficiency. It is the best extraction solvent for Petroleum aromatic hydrocarbon plant, and is also used as formylation reagent in fine chemical industry. This product is the best extraction solvent for a Petroleum aromatic hydrocarbon plant; The mixed solution of N-formylmorpholine and morpholine (1:1) is the extraction solvent for a methyl ethyl ketone plant. It is also used as formylation reagent photoinitiator in the field of fine chemical industry, mainly used for screen printing ink, lithographic printing ink, flexo printing ink, wood coating Photo initiator, used in a variety of ink industry for white system, can be used for UV-curing coatings, printing inks, UV-curing adhesives, UV-curable coatings and inks UV-curable coatings and inks |
| physical properties | 64% appearance light yellow solid absorption wavelength 273,370 nm melting point 91-94°C content ≥ 99% |
| Application | The photoinitiator TPO is mainly used for silk-screen printing ink, lithographic printing ink, flexo printing ink and wood coating. |
| storage | attention should be paid to keep the seal and at low temperature, storage under dry conditions |
Last Update：2024-04-09 02:00:11
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