Vat Black 25

CAS NO.：4395-53-3
Empirical Formula: C45H22N2O5
Molecular Weight: 670.67
MDL number: MFCD00800443
EINECS: 224-519-9
SAFETY DATA SHEET (SDS)

What is Vat Black 25?

Preparation

1-Aminoanthracene-9,10-dione (2 Moore) and 3,9-Dibromo-7H-benzo[de]anthracen-7-one in boiling naphthalene, in copper oxide and Sodium carbonate under the existence of condensation,?And then boiling isobutanol cyclization with potassium hydroxide.

Properties and Applications

brown light grey. Brown powder. In concentrated sulfuric acid for green, dilution after black precipitation; In concentrated nitric acid for the red light brown. Alkaline reduction leuco for grey; Acid reduction leuco for dark olive. Mainly used in cotton fiber dyeing, generally not used for printing. Suitable for suspension pad dyeing, and other dye spell dyed all kinds of noise, leuco can dye cotton yarn, but also can be used for silk and wool dyeing, and have a good washing fastness and fastness to sunlight.

Standard	Ironing Fastness	Chlorine bleach	Light Fastness	Mercerized	Oxygen bleach	Soaping
Standard	Ironing Fastness	Chlorine bleach	Light Fastness	Mercerized	Oxygen bleach	Fading	Stain
ISO	4	4	8	5	4	4-5	5
AATCC	5	4	7-8	5	4-5

Properties of Vat Black 25

Density	1.527±0.06 g/cm3(Predicted)
pka	-2.72±0.20(Predicted)
CAS DataBase Reference	4395-53-3(CAS DataBase Reference)
EPA Substance Registry System	Anthra[2,1,9-mna]naphth[2,3-h]acridine-5,10,15(16H)-trione, 3-[(9,10-dihydro-9,10-dioxo-1-anthracenyl)amino]- (4395-53-3)