6448-95-9 Usage
Description
Pigment Red 22 is a red powder with a yellowish shade, characterized by its heat resistance of at least 140°C, light fastness rating of 6, and moderate acid and alkali resistance with a rating of 4. It has a fastness to bleeding rating of 4, oil absorption of 40-50%, a specific surface area of 28 m2/g, a density of 1.50 g/cm3, and a maximum residue of 5.0% on an 80 mesh screen. Additionally, it has a water solubility of 1.0% max and a volatile content of 1.0% max at 105 °C. It is used to increase the solubility of industrial azo pigments for NMR spectra and assignments of their NMR peaks.
Uses
Used in Industrial Applications:
Pigment Red 22 is used as a pigment for increasing the solubility of industrial azo pigments for NMR spectra and assignments of their NMR peaks. This enhances the analysis and understanding of the pigment's properties and behavior in various applications.
Used in Colorant Industry:
Pigment Red 22 is used as a colorant due to its red powder appearance and yellowish shade. Its properties, such as heat resistance, light fastness, and resistance to acids and alkalis, make it suitable for various coloring applications in the colorant industry.
Used in Paint and Coating Industry:
The heat resistance, light fastness, and resistance to acids and alkalis of Pigment Red 22 make it an ideal pigment for use in the paint and coating industry. It provides stable and long-lasting color in various coatings and paints.
Used in Plastics and Polymer Industry:
Pigment Red 22's properties, such as its resistance to heat and light, make it suitable for use in the plastics and polymer industry. It can be used to color various types of plastics and polymers while maintaining the desired color properties over time.
TEST ITEMS
SPECIFICATION
HEAT RESISTANCE
140 °C min
LIGHT FASTNESS
6
ACID RESISTANCE
4
ALKALI RESISTANCE
4
FASTNESS TO BLEEDING
4
OIL ABSORPTION
40-50%
SPECIFIC SURFACE
28 m
2
/g
DENSITY
1.50 g/cm
3
RESIDUE ON 80 MESH
5.0% max
VOLATITE 105 °C
1.0% max
Check Digit Verification of cas no
The CAS Registry Mumber 6448-95-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,4 and 8 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 6448-95:
(6*6)+(5*4)+(4*4)+(3*8)+(2*9)+(1*5)=119
119 % 10 = 9
So 6448-95-9 is a valid CAS Registry Number.
InChI:InChI=1/C24H18N4O4/c1-15-11-12-18(28(31)32)14-21(15)26-27-22-19-10-6-5-7-16(19)13-20(23(22)29)24(30)25-17-8-3-2-4-9-17/h2-14,29H,1H3,(H,25,30)
6448-95-9Relevant articles and documents
Synthesis and properties of azonaphtharylamide pigments having arylamide groups at 2- and 7-positions
Otani, Junji,Kikuchi, Takeshi,Higashida, Suguru,Harada, Takashi,Matsumura, Michio
, p. 28 - 35 (2015/02/19)
We studied two azonaphtharylamide pigments having arylamide groups at the 2- and 7-positions on the naphthol ring. Presence of the 7-substited amide group distinguishes the pigments from conventional azonaphtharylamide pigments derived from 3-hydroxy-2-naphthoic acid. The 7-substituent caused a hyperchromic effect but did not produce bathochromic shift in the optical absorption spectra in solution compared with the corresponding 7-unsubstituted counterparts. Molecular geometry optimizations through semi-empirical MO calculations showed that extent of the chromophore systems in the pigments with and without the 7-substituent is nearly the same, which is consistent with absence of the bathochromic shift. The MO calculations also showed that the MOs localized in the 7-substituents are involved in the electronic transitions in the longest wavelength bands of the pigments, which is responsible for the hyperchromic effect. The 7-substituted pigments exhibited better resistivity to light and heat than the 7-unsubstituted ones.
