Sulphur Black BR.B200%

C.I.Sulphur Black 1

Properties:

Bright-black flack or grain,insoluble in water and alcohol.It is the green-black color when it soluble in the solution of sodium sulfide.

Quality standard:HG/T3427-2001

1. Appearance:Bright-black flake or grain.
2. Shade:no difference as the standard.
3. Strength,score:100 as the standard product.

4.Moistness,%:≦6

5.Insoluble matters inthe solution of sodium sulfide,%:≦0.3