Name | Benzidine Yellow G |
Synonyms | C.I. 21090 Pigment Yellow 12 Benzidine Yellow G C.I. Pigment Yellow 12 Pigment Yellow 12 (21090) C.I. Pigment Yellow 12 (VAN) (8CI) 2,2'-[(3,3'-dichlorobiphenyl-4,4'-diyl)di(E)diazene-2,1-diyl]bis(3-oxo-N-phenylbutanamide) (2E,2E)-2,2'-[(3,3'-dichlorobiphenyl-4,4'-diyl)di(1E)hydrazin-2-yl-1-ylidene]bis(3-oxo-N-phenylbutanamide) 2-[2-chloro-4-[3-chloro-4-[2-oxo-1-(phenylcarbamoyl)propyl]azo-phenyl]phenyl]azo-3-oxo-N-phenyl-butanamide |
CAS | 6358-85-6 15541-56-7 |
EINECS | 228-787-8 |
InChI | InChI=1/C32H26Cl2N6O4/c1-19(41)29(31(43)35-23-9-5-3-6-10-23)39-37-27-15-13-21(17-25(27)33)22-14-16-28(26(34)18-22)38-40-30(20(2)42)32(44)36-24-11-7-4-8-12-24/h3-18,29-30H,1-2H3,(H,35,43)(H,36,44) |
Molecular Formula | C32H26Cl2N6O4 |
Molar Mass | 629.5 |
Density | 1.34g/cm3 |
Melting Point | 312-320℃ |
Boling Point | 805.4°C at 760 mmHg |
Flash Point | 440.9°C |
Water Solubility | <0.1 g/100 mL at 22℃ |
Solubility | <0.1 G/100 ML AT 22°C |
Vapor Presure | 5.64E-26mmHg at 25°C |
pKa | 8.33±0.59(Predicted) |
Storage Condition | Room Temprature |
Refractive Index | 1.65 |
Physical and Chemical Properties | Melting Point: 312-320°C water-soluble <0.1g/100 mL at 22°C solubility: insoluble in water, slightly soluble in ethanol; Red-orange in concentrated sulfuric acid, diluted Brown yellow precipitation; In concentrated nitric acid for Brown yellow. hue or shade: Yellow density/(g/cm3):1.4 Bulk density/(lb/gal):9.3-13.6 melting point/℃:317-322 average particle size/μm:0.10-0.21 particle shape: rod-like specific surface area/(m2/g):21;63 Ph/(10% slurry):5.0-8.5 oil absorption/(g/100g):25-80 hiding power: translucent/transparent diffraction curve: reflection curve: <1 mg src = http://images.chemnet.com/service/c_product/100013_4.jpg align = center> yellow powder, melting point 317 °c. It was heated at 150 °c for 20min to slightly turn green. Density 1.24~1.53g/cm3. In concentrated sulfuric acid, it is red light detection color, and after dilution, it is Brown light red; In concentrated nitric acid, it is Brown light yellow. Compared with C. I. Pigment Yellow 1, this product has strong anti-solvent and anti-migration properties, high coloring power, good heat resistance and transparency. |
Use | Used for printing ink, paint, rubber, plastic, paint printing paste, cultural and educational supplies coloring There are 159 kinds of the varieties and formulations. Neutral yellow, in line with the color standard of four-color plate printing; High coloring strength and brightness and transparency (lucitia yellow 2JRT specific surface area of 44 m2/g); Medium solvent resistance, shows a tendency to recrystallize; Light and weather fastness is low, grade 3 and Grade 2 at 1/1, 1/3 standard depth, compared to other yellow pigments (P.Y.13,83,127,176) low grade 1-2. Widely used in printing ink, can be used for packaging printing ink, the United States with the water squeeze phase inversion color paste dosage form; Can also be used for pigment printing and plastic coloring, soft PVC has a certain mobility, good heat resistance makes it used for polyurethane foam coloring. |