Name | Pigment Red 179 |
Synonyms | trone LT-S925 C.I71130 c.i. 71130 vat red 23 C.I. 71130 c.i.vatred23 caledonred2g caledonred2gn ponsol red yf caledon red 2g Pigment Red 179 C.I. Vat Red 23 pigment red 179 perylene maroon caledon red 2gn perylene bordeaux c.i.pigmentred179 paliogen red 4120 indanthren red gg palanthrene red gg hostaperm red p 2gl variogen maroon 3920 paliogen maroon 3920 C.I. Pigment Red 179 paliogen maroon l 3920 paliogen maroon l 4020 pigment bordeaux perylene N,N'-dimethyl-3,4,9,10-perylenedicarboximide N,N'-DIMETHYL-PERYLENE-TETRACARBONIC ACID - DIAMIDE |
CAS | 5521-31-3 |
EINECS | 226-866-1 |
InChI | InChI=1/C26H14N2O4/c1-27-23(29)15-7-3-11-13-5-9-17-22-18(26(32)28(2)25(17)31)10-6-14(20(13)22)12-4-8-16(24(27)30)21(15)19(11)12/h3-10H,1-2H3 |
Molecular Formula | C26H14N2O4 |
Molar Mass | 418.4 |
Density | 1.594±0.06 g/cm3(Predicted) |
Melting Point | >400°C |
Boling Point | 694.8±28.0 °C(Predicted) |
Flash Point | 341.1°C |
Water Solubility | 5.5μg/L at 23℃ |
Vapor Presure | 3.72E-19mmHg at 25°C |
Appearance | powder |
Color | Orange to Brown to Dark purple |
Maximum wavelength(λmax) | ['550nm(H2SO4)(lit.)'] |
pKa | -2.29±0.20(Predicted) |
Storage Condition | Room Temprature |
Refractive Index | 1.904 |
Physical and Chemical Properties | solubility: slightly soluble in tetrahydronaphthalene and xylene; Purple in concentrated sulfuric acid, brown-red precipitate after dilution; Purplish red in alkaline sodium hydrosulfite solution, turning dark orange in case of acid. hue or shade: Dark Red relative density: 1.41-1.65 Bulk density/(lb/gal):11.7-13.8 average particle size/μm:0.07-0.08 specific surface area/(m2/g):52-54 oil absorption/(g/100g):17-50 hiding power: transparent diffraction curve: reflection curve: |
Use | Used in industrial construction, automotive coatings, printing ink, polyvinyl chloride plastic and other coloring The pigment is the most industrially valuable pigment varieties in perylene Red series, giving bright red, mainly used for automotive primer (OEM) and repair paint, and other inorganic/organic pigment color matching, the quinacridone hue is extended to the yellow red area. The pigment has excellent light resistance and weather fastness, even better than substituted quinacridone, heat stability of 180-200 ℃, good solvent resistance and Varnish performance. There are 29 types of products put on the market. |
Hazard Symbols | Xi - Irritant |
Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
WGK Germany | 3 |
RTECS | CB1590000 |
LogP | -0.033 at 23℃ |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
Overview | Pigment Red 179 is a perylene pigment, which mainly refers to a class of perylene tetracarboxylic acid diimide compounds obtained by condensation of perylene tetracarboxylic acid or perylene tetracarboxylic acid anhydride with different amine compounds. Red to brown perylene pigments are a type of high-performance organic pigments with extremely high organic solvent resistance and thermal stability, excellent light fastness, weather fastness, color permeability and migration fastness, etc. It is widely used as high-end industrial coatings such as automotive original topcoats and repair paints, as well as high-end plastic colorants for vinyl polymers, polyethylene, polypropylene, and fiber plastics. |
Use | Used for coloring industrial buildings, automotive coatings, printing inks, polyvinyl chloride plastics, etc. |
production method | method 1: melt N-methyl -1, 8-naphthalimide with potassium hydroxide.. Method 2: Methylation of 3,4,9,10-perylene tetramethyldiimide (C.I.Pigment Brown 26, 71129).. |