CAS NO 2243-76-7 Mordant Orange 1 Powder

CAS NO 2243-76-7 Mordant Orange 1 powder​

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Product Name:	Mordant Orange 1
Synonyms:	MORDANT ORANGE 1;P-NITROBENZENEAZOSALICYLIC ACID SODIUM SALT;ORANGE R;TIMTEC-BB SBB008990;SODIUM P-NITROBENZENEAZOSALICYLATE;SODIUM 5-(P-NITROPHENYLAZO)SALICYLATE;synchromateorangeaor;terracotta2rn
CAS:	2243-76-7
MF:	C13H9N3O5
MW:	287.23
EINECS:	218-818-3
Product Categories:	Azo;Analytical Chemistry;Indicator (pH);pH Indicators
Mol File:	2243-76-7.mol

Melting point	250°C
Boiling point	429.53°C (rough estimate)
density	1.3681 (rough estimate)
refractive index	1.5600 (estimate)
solubility	Soluble in water, ethanol; slightly soluble in acetone
form	powder
Colour Index	14030
pka	11.2(at 25℃)
color	Orange-brown
PH Range	10(Yellow)-12(Violet)
Water Solubility	SOLUBLE
λmax	385nm
Merck	14,255
BRN	962365
Major Application	Display device, photoresist, nanoparticles, sensors, image-recoring materials, photoconductive materials, photography, electrorheological materials, copying materials, optical engineering applications, monitoring oil degradation, lubricant, flame luminosity enhancing agent, coloring zinc, method for polymerization of vinyl chloride, determination of OH groups on resins, cosmetics, diapers, food storage, measurement of acidity injuice, assay for aldehyde contents, determination of albumin, agent for plaque, method for counting leukocytes, antifungal agent
InChIKey	ZHFPEICFUVWJIS-BGWNKZQTSA-M
CAS DataBase Reference	2243-76-7(CAS DataBase Reference)
EPA Substance Registry System	Benzoic acid, 2-hydroxy-5-[(4-nitrophenyl)azo]- (2243-76-7)

Chemical Properties	brown powder
Preparation	4-Nitrobenzenamine diazotization, and 2-Hydroxybenzoic acid?coupling.
Properties and Applications	dark yellow orange and brown. Dye soluble in water and Etanol be golden yellow, slightly soluble in Acetone and Cellosolve, insoluble in other organic solvent. In concentrated sulfuric acid to red light yellow, shallow green light yellow after diluted produce precipitation; In concentrated nitric acid for yellow to amber solution. Dye aqueous solution to join concentrated hydrochloric acid have green yellow precipitation; Add Sodium hydroxide solution for red wheat brown. Mainly used for wool, silk, nylon dyeing, also can be in wool and silk printing. Can also be used in electrochemical silver, biological coloring and indicator, wall paper and leather tinting. Standard Ironing Fastness Light Fastness Fulling Persperation Fastness Soaping Water Alkali Acid ISO 2 4 4 1-2 5 4-5 4-5 AATCC Dry 2,wet 5 4 4   4 4 3-4
Purification Methods	The free acid is precipitated by adding HCl to an aqueous solution of the Na salt. After 2 recrystallisations from aqueous AcOH, it has m 255o(dec); [m 253-254o(dec) was reported by Hewitt & Fox J Chem Soc 79 49 1901]. The free acid recrystallises from dilute AcOH as orange brown needles. The Na salt changes colour from yellow to red when the pH is increased from 10.2 to 12.0. [Woodland et al. J Am Chem Soc 75 5835 1953, Beilstein 16 IV 372.]