| Typical physical properties Photoinitiators | Chemical class | Chemical identity | Appearance | Freezing point (FP, 0 С)
Melting point (МР, 0 С) Boiling point (ВР, 0 С) |
Specific
gravity (water = 1) |
UV/VIS
Absorption peaks (nm) in methanol |
|
IRGACURE 18 4 |
a- Hydroxyketone |
1-Hydroxy-cyclohexyl- pheny l-ketone |
white to off-white crysta lline powde r |
МР 45-4 9°С |
1.1- 1.2 |
246,280,333 |
| IRGACURE 500 | a-Hydroxyketone | IRGACURE 184 (50 wto/o),
Benzophenone (50 wto/o) |
clear, pale yellow liq u id | FP< 0 °C
recrysta llization below 18°С |
1.1 | 250, 332 |
| DAROCUR 1173 | a-Hydroxyketone | 2-Hydroxy-2-methyl-1- p heny l-1-ргорапо пе | clear, lig h t yellow liquid | liqu id at room tem p. МР 4°С, ВР 80- 81°С | 1.1 | 245, 280, 331 |
| IRGACURE 2959 | a-Hydroxyketone | 2-Hydroxy-1-[4-(2-hydroxyet hoxy) pheny l]-2-met hyl-1-propanone | off-white powder | МР 86- 90°С | 1.3 | 276 |
| DAROCUR MBF | Phenylglyoxylate | Met hylbenzoylformate | clear liquid | liq uid at room temp. М Р 17 °С
ВР 246-248 °С |
1.2 | 255, 325 |
| IRGACURE 75 4 | Phenylglyoxylate | oxy-p heny l-acetic acid 2-[2 охо-2 pheny l-acetoxy-eht oxy]-ethy l ester and oxy -phenyl-acetic 2-
[2-hydroxy-ethoxy]-ethyl este r |
light yellow liquid | liquid at room tem p. МР < -22 °С | 1.2 | 255, 325 |
| IRGACURE 651 | Benzyldimethyl-ketal | Alpha, alp ha-di methoxy-
alp h a-phenylacetophenone |
white to light yellow powder | МР 64- 67°С | 1.2 | 250, 340 |
| IRGACURE 369 | a-Aminoketo ne | 2-Benzyl-2-(dimethy lamino)-1-[4-
(4-morpholinyl) phenyl]-1-butanone |
slig h t ly yellow p owder | МР 110- 114 °С | 1.2 | 233, 324 |
| IRGACURE 907 | a-Am inoketone | 2-Met hyl-1-[4 -(met hylthio)phenyl]
-2-(4-morpholinyl)-1-propanone |
white to light beige pow der | МР 70- 75°С | 1.2 | 230, 304 |
| IRGACURE 1300 | a-Aminoketone | IRGACURE 369 (30 wto/o) +
IRGACURE 651 (70 wto/o) |
light yellow powder | МР 55- 60°С | 1.2 | 251, 323 |
| DAROCUR ТРО | Мопо Acyl
Ph osp hine (МАРО) |
Diphenyl (2,4,6-trimethylbenzoyl)- phosph ine oxide | light yellow powde r | МР 88- 92°С | 1.2 | 295, 368, 380, 393 |
| DAROCUR 4265 | МАРО/
a-Hydroxyketone |
DAROCUR ТРО (50 wto/o) +
DAROCUR 1 173 (50 wto/o) |
light yellow viscous li q uid | liquid at room temp. | 1.1 | 240, 272, 380 |
| IRGACURE 819 | Bis Acyl Ph osph ine (ВАРО) | Ph osp h ine oxide, phenyl Ьis (2,4,6 -trimet hyl benzoyl) | light yellow powder | МР 127- 133 °С | 1.2 | 295, 370 |
| IRGACURE 819DW | ВАРО Dispe rsio n | IRGACURE 819 (45% act ive)
dispe rsed in water |
light yellow liquid | liquid dispe rsio n at room temp. | 1.1 | 295,370 |
| IRGACURE 2022 | ВАРО/
a-Hydroxyketone |
IRGACURE 819 (20 wto/o) +
DAROCUR 1 173 (80 wto/o) |
light yellow liq u id | liquid at room tem p. | 1.1 | 246, 282, 370 |
| IRGACURE 2100 | Ph osp hin e oxide |
— |
light yellow viscous li q uid | liquid at room tem p. | 1.1 | 275, 370 |
| IRGACURE 784 | Meta llocene | Bis (eta 5-2,4-cyclopentadien-1-yl) Bis [2,6-difluoro-3-(1 H-py rrol-1-yl) pheny l]titaniu m | orange powde r | МР 160- 170 °С | > 1 | 398, 470 |
| IRGACURE 250
1 |
lodonium salt | lodo nium, (4-methylphenyl) [4-(2-methylpropyl) phenyl]-, h exafluorophosphat e(l -) | yellow to brownish liquid | 75% so lu t ion
liquid at room temp. Storage below 30°С. |
1.5 | 242 |