6041-94-7 Usage
Uses
Used in Paint Industry:
Pigment Red 2 is used as a colorant for providing a bluish red shade in paint formulations. Its heat resistance of at least 140°C and light fastness rating of 5-6 make it suitable for various paint applications.
Used in Plastic Industry:
Pigment Red 2 is used as a pigment in the plastic industry to impart a bluish red color to plastic materials. Its acid and alkali resistance ratings of 4 ensure stability in different environments.
Used in Textile Industry:
Pigment Red 2 is used as a dye in the textile industry to color fabrics with a bluish red hue. Its fastness to bleeding rating of 5 indicates good colorfastness on textiles.
Used in Cosmetic Industry:
Pigment Red 2 is used as a color additive in cosmetic products, such as lipsticks and blushes, to provide a bluish red tint. Its water solubility of 1.0% max allows for easy incorporation into cosmetic formulations.
Used in Ink Industry:
Pigment Red 2 is used as a pigment in ink formulations to achieve a bluish red color. Its oil absorption of 40-45% and specific surface area of 25 m2/g contribute to its performance in ink applications.
Used in Coating Industry:
Pigment Red 2 is used as a colorant in coating formulations to provide a bluish red appearance. Its properties, such as heat resistance and light fastness, make it suitable for various coating applications.
Used in Paper Industry:
Pigment Red 2 is used as a pigment in paper manufacturing to impart a bluish red color to paper products. Its performance characteristics, including acid and alkali resistance, make it suitable for paper applications.
Used in Rubber Industry:
Pigment Red 2 is used as a colorant in the rubber industry to provide a bluish red hue to rubber products. Its heat resistance and light fastness contribute to its performance in rubber applications.
Used in Food Industry:
Pigment Red 2 is used as a color additive in the food industry to provide a bluish red color to food products, such as candies and beverages. Its water solubility and heat resistance make it suitable for food applications.
Used in Pharmaceutical Industry:
Pigment Red 2 is used as a colorant in pharmaceutical products, such as tablets and capsules, to provide a bluish red appearance. Its properties, including acid and alkali resistance, make it suitable for pharmaceutical applications.
Air & Water Reactions
Azo dyes can be explosive when suspended in air at specific concentrations. Insoluble in water.
Reactivity Profile
Pigment Red 2 is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides.
Fire Hazard
Flash point data for Pigment Red 2 are not available, however Pigment Red 2 is probably combustible.
Flammability and Explosibility
Notclassified
TEST ITEMS
SPECIFICATION
HEAT RESISTANCE
140 °C min
LIGHT FASTNESS
5~6
ACID RESISTANCE
4
ALKALI RESISTANCE
4
FASTNESS TO BLEEDING
5
OIL ABSORPTION
40-45%
SPECIFIC SURFACE
25 m
2
/g
DENSITY
1.60 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 6041-94-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,0,4 and 1 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 6041-94:
(6*6)+(5*0)+(4*4)+(3*1)+(2*9)+(1*4)=77
77 % 10 = 7
So 6041-94-7 is a valid CAS Registry Number.
InChI:InChI=1/C23H15Cl2N3O2/c24-15-10-11-19(25)20(13-15)27-28-21-17-9-5-4-6-14(17)12-18(22(21)29)23(30)26-16-7-2-1-3-8-16/h1-13,29H,(H,26,30)/b28-27+
6041-94-7Relevant 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)
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.
