6448-96-0 Usage
Description
Pigment Red 31, with the CAS number 6448-96-0, is an organic azo dye that is characterized by its red powder appearance and a bluish shade. It exhibits a high tinting strength of 100-105% and possesses properties such as heat resistance up to 180°C, light fastness rated 6-7, and moderate resistance to acids and alkalis with a rating of 5. Additionally, it has a fastness to bleeding rating of 4, an oil absorption rate of 40-50%, a specific surface area of 28 m2/g, a density of 1.40 g/cm3, and a maximum residue of 5.0% on 80 mesh. The water solubility of Pigment Red 31 is limited to a maximum of 1.0%.
Uses
Used in Printing Industry:
Pigment Red 31 is used as a colorant and pigment in inkjet printer ink, providing a vibrant red hue for high-quality printing applications.
Used in Analytical Chemistry:
Pigment Red 31 is used as a component in the formation of a hydrophobic fluorescent organic pigment when interacting with Laponite RD. This combination serves as a useful analytical reagent in various chemical analyses and research applications.
Flammability and Explosibility
Notclassified
TEST ITEMS
SPECIFICATION
HEAT RESISTANCE
180 °C min
LIGHT FASTNESS
6~7
ACID RESISTANCE
5
ALKALI RESISTANCE
5
FASTNESS TO BLEEDING
4
OIL ABSORPTION
40-50%
SPECIFIC SURFACE
28 m
2
/g
DENSITY
1.40 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 6448-96-0 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 6 respectively.
Calculate Digit Verification of CAS Registry Number 6448-96:
(6*6)+(5*4)+(4*4)+(3*8)+(2*9)+(1*6)=120
120 % 10 = 0
So 6448-96-0 is a valid CAS Registry Number.
InChI:InChI=1/C31H23N5O6/c1-42-27-15-14-20(30(38)32-21-9-3-2-4-10-21)17-26(27)34-35-28-24-13-6-5-8-19(24)16-25(29(28)37)31(39)33-22-11-7-12-23(18-22)36(40)41/h2-18,34H,1H3,(H,32,38)(H,33,39)/b35-28-
6448-96-0Relevant articles and documents
Compound, compound containing a pigment dispersant, a colored composition for color filter (by machine translation)
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Paragraph 0124; 0125, (2019/01/06)
[Problem] high dispersing performance, sharpness (contrast), naphthol azo pigment to both heat performance of the compounds, the compound containing a pigment composition, pigmented composition, and the color filter. (1) Represented by the formula [a], naphthol azo-based compound, and the compound containing a pigment dispersant, a pigment composition and colored composition. (R1 - R5 are each independently H, halogen atom, nitro group, an alkyl group such as C1 c 4)[Drawing] no (by machine translation)
