dye|World dye variety

Name:C.I.Direct Brown 1,C.I.30045

Molecular Structure: trisazo class

C.I.Direct Brown 1,C.I.30045,CAS 3811-71-0,680.60,C31H22N8Na2O6S,Direct Brown D3G,Direct Brown D3GE,Direct Brown MD

Molecular Formula:C₃₁H₂₂N₈Na₂O₆S

Molecular Weight: 680.60

CAS Registry Number:3811-71-0

Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding, first coupled with 2-Hydroxybenzoic acid, again and 4-Aminobenzenesulfonic acid diazo, in acid conditions and Benzene-1,3-diamine coupled to a product matches.

Properties and Applications: brown. Brown evenly powder. Soluble in water for orange brown, soluble in ethanol, slightly soluble in acetone and soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid in the dark for the light purple to violet black, diluted into a brown; In nitric acid partly dissolved for red light brown, to orange brown. The dye solution to join 10% sodium hydroxide solution for yellow brown. Cellulose fiber of dyeing, dye well after sex is good, temperature in 100 ℃, affinity is the largest. Discharge of more sensitive to that fights. Copper ions in dyeing and dark colored light yellow, meet iron ion to yellow. Mainly used for cotton, such as glue of cellulose fiber dyeing, also can be used for silk, polyamide fiber, Sticky/brocade fabric dyeing, can also be used for the pulp and leather color.

List of Suppliers:

Direct Brown D3GE,Direct Brown MD

JinZhou Dyestuffs Plant Hebei

Bitamine Direct Brown CN ( Bharat Texdyes Industries )

Brown N-D3G (Sinochem Liaoning Import & Export Corporation)

Classic Direct Brown 1 (Classic Dyestuffs Inc)

Condirec Brown A (Concord Commerce Company)

Direct Brown D3G( Multicrom SA )

Direct Chrome Brown G( KCA Ltd )

Orcomine Direct Brown 3GTA-2S(Classic Dyestuffs Inc)

Rifa Direct Brown 3G(Rifa Industrial Co Ltd)

Rifa Direct Brown 3GS( Rifa Industrial Co Ltd )