C.I.Pigment Orange 71
Pigment Yellow 168
CAS: 71832-85-4
Molecular Formula: C32H24CaCl2N8O14S2
C.I.Pigment Orange 71 - Names and Identifiers
| Name | Pigment Yellow 168 |
| Synonyms | P.O.71 C.I. 13960 Yellow WGP Pigment Yellow 168 Plasco yellow 168 C.I.Pigment Orange 71 Irgazin DPP Orange 398 Pigment yellow 168 (C.I. 13960) Bis-(p-butyl-phenyl)-1,4-diketopyrrolo(3,4-c)pyrrole calcium bis[4-[[1-[[(2-chlorophenyl)amino]carbonyl]-2-oxopropyl]azo]-3-nitrobenzenesulphonate] |
| CAS | 71832-85-4 |
| EINECS | 276-057-2 |
| InChI | InChI=1/C16H13ClN4O7S.Ca/c1-9(22)15(16(23)18-12-5-3-2-4-11(12)17)20-19-13-7-6-10(29(26,27)28)8-14(13)21(24)25;/h2-8,15H,1H3,(H,18,23)(H,26,27,28);/q;+2/p-1/b20-19+ |
C.I.Pigment Orange 71 - Physico-chemical Properties
| Molecular Formula | C32H24CaCl2N8O14S2 |
| Molar Mass | 919.69216 |
| Density | 1.6[at 20℃] |
| Water Solubility | 1.697-1.7mg/L at 23℃ |
| Physical and Chemical Properties | hue or color light: bright green light yellow diffraction curve:  reflection curve:  hue or hue: bright orange diffraction curve:  reflectance curve:  hue or shade: bright orange |
| Use | The pigment variety is with C.I. Pigment yellow 61 and pigment yellow 62 are structurally similar calcium salt lakes, giving a slightly green yellow tone, between C.I. Pigment Yellow 1 and pigment yellow 3; Good solvent resistance and migration resistance of aliphatic hydrocarbons and aromatic hydrocarbons, mainly used for coloring of coatings and plastics, good migration resistance in plastic PVC, slightly low color strength, the light fastness is grade 6, and the dimensional deformation occurs in HDPE. It is mainly recommended for the coloring of LDPE. The non-transparent orange DPP pigment sold by Swiss Ciba fine company in recent years is suitable for high-grade industrial coatings, such as automotive paint (OEM), solvent-based color baking enamel, powder Coatings and coil coatings, but the solvent resistance and light resistance, fastness to climate is not the same type of C.I. Pigment Red |
C.I.Pigment Orange 71 - Reference Information
| LogP | -0.59 at 23℃ |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | pigment yellow 168 is mainly used for coloring of coatings and plastics, and has good migration resistance in plastic PVC. Pigment yellow 168 can be obtained from 2-nitro-4-sulfoaniline by diazotization reaction with O-chloroacetanilide. |
| Application | pigment yellow 168 is mainly used for coloring of coatings and plastics, and has good migration resistance in plastic PVC, the color strength is slightly low, the light fastness is grade 6, and the size deformation occurs in HDPE. It is mainly recommended for the coloring of LDPE. |
| preparation | the preparation method of pigment yellow 168, including the following steps:(1) 2-nitro-4-sulfonylaniline is dissolved in hydrochloric acid;(2) the solution is cooled to less than 5 degrees Celsius in an ice bath;(3) Sodium nitrite is added and stirred thoroughly, form the diazonium salt solution;(4) after mixing the sodium hydroxide solution, water and O-Chloroacetyl acetanilide and fully stirring, add the acetic acid solution and stir, until the formation of suspended particles, keep stirring;(5) add the solution of step (3) to the solution of step (4) for coupling, and fully stir, while cooling with an ice bath, so that the temperature of the mixture is less than 2 degrees Celsius;(6) add calcium oxide, and heated to 30 to 45 degrees Celsius; Heat 20 minutes; Make it fully precipitated as a lake (7) after filtering, washing, drying to obtain pigment yellow 168; After grinding, the pigment yellow 168 powder was obtained. |
Last Update：2024-04-09 19:05:14
