Sulphur Black 2BR 200% 521 , Sulphur Black B 200%, Solubilised Sulphur Black etc.
Sulphur Black 200% (521/522)
Color Index: C.1.Sulfur Black 1(53185)
Standard:GB:2374-80
Original Name: Sulfur Black
Properties: Bright black flake-granulars.It is slightly insoluble in water. It is soluble in sodium sulfide with a green-black color.
Composion:Dinitrochlorbenzne by hydrolysis then sulfurates with sodium polysulfide,and then oxidized.
Standard:GB:2374-80
Original Name: Sulfur Black
Properties: Bright black flake-granulars.It is slightly insoluble in water. It is soluble in sodium sulfide with a green-black color.
Composion:Dinitrochlorbenzne by hydrolysis then sulfurates with sodium polysulfide,and then oxidized.
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Color Index No.:
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C.I.Sulphur Black 1(53185)
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Standard of identity:
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HG/T3427-2001
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Appearance
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Flashing Black Flakes or Granules
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Strength (with the standard )
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100%
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Shade
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Approximate to the Standard
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Moisture, % ≤
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6.0
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Insoluble matter in Sodium Sulfide, % ≤
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0.5
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Mainly used dyeing on cotton, also used dyeing on cambric, viscose and vinylon.
Storage and transportation
It must be store in drying and ventilation preventing from sunlight directly,
moisture or hot. Must be careful with it and prevent from damaging the packing.
moisture or hot. Must be careful with it and prevent from damaging the packing.