Molecular formula: C10H8NO7S2Na Molecular weight: 341.30 CAS NO: 90-20-0 Molecular formula: C10H8NO7S2Na Molecular weight: 341.30 CAS NO: 90-20-0 Quality index: Appearance:greyish white to light grey powder H-acid monosodium salt % ≥85.0 Content of the alkali insolubles (100%) % ≤0.2 Allochromatic acid disodium salt(100%) % ≤2 T-acid disodium salt(100%) % ≤0.5 Moisture Content % ≤5 Property: Grey powder,slightly dissolves in water,can dissolve in the sodium carbonate solution.Dilute the H-acid monosodium salt will present blue and red fluorescent xxxxx with the nitrous acid will turn into the yellow crystalline diazo xxxxx with the ferric chloride presents reddish brown;it is red and purple when dissolves in the sodium carbonate solution;dark green in saline solution,apt to dissolves in hot water. Use: Mainly used in the producting acid,direct and reactive dye, also applied in medicine. Packing: Net weight 25kg iron drum or woven bag, plastic bag inner, or according to customer's enquiry. Transport: Avoid impact or rain. Storage: In cool. dry and airy place, avoid moisture.

H Acid