Vat Green 2

C.I. Vat Green 1 (C.I. 59825)??in the presence of sodium nitrite, bromide, fuming sulfuric acid, and avoid off meth.

An eye irritant. When heated to decomposition it emitsvery toxic fumes of Br^-.

brilliant green. Variegated dark green powder. Soluble in 1, 2, 3, 4 – Tetrahydronaphthalene, there are green fluorescent, slightly soluble in 2 – Chlorophenol, not soluble in Acetone, Etanol, Chloroform, Pyridine and Toluene. In concentrated sulfuric acid to dark purple. Alkaline reduction leuco for blue; Acid reduction leuco for blue light red. Mainly used for cotton dyeing and printing paper and coloring.

Standard	Ironing Fastness	Chlorine bleach	Light Fastness	Mercerized	Oxygen bleach	Soaping
						Fading	Stain
ISO	3	3	6-7	4-5	4-5	5	4
AATCC	5	4	6-7	4-5	4-5