SIRIUS YELLOW GC Property

Boiling point:

245℃[at 101 325 Pa]

Density 

0.906[at 20℃]

Colour Index 

29000

form 

powder to crystal

color 

Orange to Brown to Dark red

Water Solubility 

9.49g/L at 20℃

LogP

-2.87 at 23℃

EPA Substance Registry System

C.I. Direct Yellow 44 (8005-52-5)

Safety

HS Code 

3204.14.5000

Hazard and Precautionary Statements (GHS)

Signal word

Warning

SIRIUS YELLOW GC Chemical Properties,Usage,Production

Uses

Direct yellow 44 (CAS# 8005-52-5) is a water-soluble organic azo dye and water pollutant.

Preparation

3-Aminobenzenesulfonic acid diazo, and (2-Methoxyphenylamino)methanesulfonic acid coupling. Then the water with sulfonic acid base, compounds (A) (coupling components is O-Anisidine with Formaldehyde?and sodium sulfite and processing); 4-Nitrobenzenamine diazo, coupled with 2-Hydroxybenzoic acid, and then will the nitro reduction, compound (B). Finally the molecular A and B mixture light gasification.

Flammability and Explosibility

Not classified

Properties and Applications

yellow. Brown powder. Soluble in water for green light yellow, slightly soluble in alcohol. The strong sulfuric acid dyes for red, diluted into shallow purple. The dye solution to join strong hydrochloric acid into Red sauce, accompanied by precipitation; Add thick sodium hydroxide solution to brown light orange, precipitation. Water-soluble, a little sensitive fights. In 90 ℃ the solubility of 60 g/L. For tender yellow light. In dye bath of copper ions in a little turned dark colored light and red (3 class); Iron ion in slightly turned dark colored light and red (category 4). For A class SDC classification. Used for cotton, viscose, silk, polyamide, polyester/cotton blended fabric dyeing and printing directly, can also be used for leather, paper and ink color.