CAS:1326-82-5分子式: N/A产品通用描述：No. Specifications Standard 1 Appearance Black crystal grains 2 Strength 200%±3% 3 Free sulfur content% ≤ 0.5 4 Insoluble(In Na2S solution)% ≤ 0.7 Usage: Mainly used dyeing on cotton, also used dyeing on cambric, viscose and vinyl on.
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