医药化工产品

Other Name: Acid Black S-RL,Acid Black LDN,Acid Black M-R,Acid Black S-DL,Neutral Black S-BL,Neutral Black 2S-RL,Neutral Black BR,Neutral Black D-SL,Neutral Black LD,Neutral Black M-SRL,Neutral Black RS-BLN,Neutral Complex Black S-RL,Neutral Complex Black LDN
Molecular Formula: C₄₀H₂₀CrN₆Na₃O₁₄S₂
Molecular Weight: 993.71
Manufacturing Methods : 4-Amino-3-hydroxynaphthalene-1-sulfonic aciddiazo, and Naphthalen-2-ol coupling, and then translate into 1:2 chromium complex.
Properties and Applications: black. Dark brown powder, soluble in water. Used for wool, polyamide fiber, silk and their blended fabric dyeing and printing directly, also can used for leather dyeing.

Standard	Light Fastness	Soaping		Persperation Fastness	Oxygen bleaching		Fastness to seawater
Standard	Light Fastness	Fading	Stain	Persperation Fastness	Fading	Stain	Fading	Stain
ISO	7	4-5		5			5

  .Remark: products patented are for R&D only and are permitted under 35 USC 271(e).
  .Patent products cannot be offered to the countries where patent law is in force.
   Final responsibility lies with the buyer exclusively.

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