HS Code: 32041911 CAS: 1326-82-5 Colour Index No.: C.I.Sulphur Black 1(53185) Standard of identity: HG/T3427-2001 Appearance: Flashing Black Flakes or Granules Strength (with the standard ) : 100% Shade: Approximate to the Standard Moisture, % ≤ : 6.0 Insoluble matter in Sodium Sulfide, % ≤: 0.5 Packing: In 25 kgs net woven bag / carton / iron drum.