C.I. 12385

Name	Pigment Red 12
Synonyms	12385 C.I. 12385 pigment red 12 Pigment Red 12 C.I.PigmentRed12 Pigment -- Pigment Red 12 Pigment Permanent Bordeaux F2R 3-hydroxy-4-(2-methyl-4-nitro-phenyl)azo-N-(o-tolyl)naphthalene-2-carboxamide 3-Hydroxy-4-[(2-methyl-4-nitrophenyl)azo]-N-(o-tolyl)naphthalene-2-carboxamide 3-hydroxy-4-[(2-methyl-4-nitrophenyl)azo]-n-(2-methylphenyl)-2-naphthalenecarboxamide 3-dydroxy-4-[(2-methyl-4-nitrophenyl)azo]-N-(2-methylphenyl)-2-Naphthalenecarboxamide 2-Naphthalenecarboxamide, 3-hydroxy-4-(2-methyl-4-nitrophenyl)azo-N-(2-methylphenyl)- (4Z)-4-[2-(2-methyl-4-nitrophenyl)hydrazinylidene]-N-(2-methylphenyl)-3-oxo-3,4-dihydronaphthalene-2-carboxamide
CAS	6410-32-8
EINECS	229-102-5
InChI	InChI=1/C25H20N4O4/c1-15-7-3-6-10-21(15)26-25(31)20-14-17-8-4-5-9-19(17)23(24(20)30)28-27-22-12-11-18(29(32)33)13-16(22)2/h3-14,30H,1-2H3,(H,26,31)

Molecular Formula	C25H20N4O4
Molar Mass	440.45
Density	1.32
Boling Point	632.7±55.0 °C(Predicted)
Flash Point	336.5°C
Water Solubility	4.6μg/L at 23℃
Vapor Presure	0Pa at 25℃
pKa	12.02±0.70(Predicted)
Refractive Index	1.665
Physical and Chemical Properties	solubility: Red Violet in concentrated sulfuric acid, red precipitate after dilution; Large red solution in concentrated nitric acid; No change in aqueous sodium hydroxide solution. hue or color light: Red blue-red powder. Melting point 292 °c. It is purple in concentrated sulfuric acid, Red solution after dilution, and red solution in concentrated nitric acid. No discoloration in sodium hydroxide.
Use	The pigment is red, there are two crystal forms, in the dry powder grinding or in the presence of halogenated hydrocarbons, ketones, can lead to unstable red jujube into Red stable, with a high intensity of coloring. Mainly used in offset printing ink and packaging printing ink, light resistance 5-6 (SD), 4 (1/25SD); Can also be used for air self-drying paint coloring; Fabric printing light fastness 6-7. There are 18 types of commercial dosage forms on the market. It is mainly used for coloring of coatings and inks.

LogP	2.44 at 23℃
EPA chemical substance information	information provided by: ofmpeb.epa.gov (external link)
Application	is mainly used for coloring coatings and inks. for printing ink, paint printing paste, painting pigments, cultural and educational supplies

Last Update：2024-04-09 15:16:52

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