SULPHUR BLACK BR & B
SULPHUR BLACK BR & B 1 (CAS: 1326-82-5) is a kind of polymer compound based on sulfur, which is widely used in textile dyeing field.
1. Core Parameters and Classification
1. Basic information
Chemical formula: C Q H H H H H N O (
CAS No.: 1326-82-5
Appearance: black scaly solid or powder
Solubility:
Insoluble in water, ethanol
Soluble in sodium sulfide solution is dark green leuco body
Soluble in hot concentrated sulfuric acid is greenish blue, after dilution to generate black precipitate
2. Product Categories
Ordinary black sulfide: need sodium sulfide to dissolve, used for cotton, linen, viscose fiber dyeing
Water soluble black sulfide: solubility enhancement, suitable for pad dyeing, dip dyeing process
Anti-brittle black sulfide: add formaldehyde and urea to reduce fiber brittle damage after dyeing
Environmentally friendly liquid black sulfide: patented formula (water 44%, sodium hydroxide 3%, sodium hydrosulfide 12%, cosolvent 1%, powdered black sulfide 40%) to reduce wastewater treatment costs
Depth Resolution of Sulfide Black (updated April 2026)
1. Core Parameters and Classification
1. Basic information
Chemical formula: C, H, H, N, O (some data show that it is a sulfur-containing polymer compound with disulfide bond and polysulfide bond in its structure)
CAS No.: 1326-82-5
Appearance: black scaly solid or powder
Solubility:
Insoluble in water, ethanol
Soluble in sodium sulfide solution is dark green leuco body
Soluble in hot concentrated sulfuric acid is greenish blue, after dilution to generate black precipitate
2. Product Categories
Ordinary black sulfide: need sodium sulfide to dissolve, used for cotton, linen, viscose fiber dyeing
Water soluble black sulfide: solubility enhancement, suitable for pad dyeing, dip dyeing process
Anti-brittle black sulfide: add formaldehyde and urea to reduce fiber brittle damage after dyeing
Environmentally friendly liquid black sulfide: patented formula (water 44%, sodium hydroxide 3%, sodium hydrosulfide 12%, cosolvent 1%, powdered black sulfide 40%) to reduce wastewater treatment costs
2. Application Scenarios and Markets
1. Core applications
Textile dyeing:
Black dyeing of cotton, linen, viscose and their fabrics (dyeing rate> 90%, excellent leveling).
Denim fabric warp dyeing (interwoven with white yarn into black denim).
It is dyed with vulcanized reduced black CLG to obtain a black effect.
Leather and Paper:
Leather is dyed after tanning to improve light fastness.
High-grade paper dyeing (such as art paper, wrapping paper).
