Place of Origin : Beijing,China
Sodium Sulphide Red Flake
Na2S: ≥ 60 %
Fe:≤ 0.15 % (1500ppm)
≤ 0.12 % (1200ppm)
≤ 0.08 % (800ppm)
≤ 0.015 % (150ppm)
Na2CO3:≤ 5.0 %
Water insoluble :≤ 0.4 %
Sodium Sulphide Yellow Flake low Iron
Na2S:≥ 60 %
Fe :≤ 0.012 % (120ppm)
≤ 0.01 % (100ppm)
≤ 0.008 % (80ppm)
≤ 0.005 % (50ppm)
≤0.003 % (30ppm)
Na2CO3:≤ 5.0 %
Water insoluble :≤ 0.4 %