Formamidine disulfide dihydrochloride

Details:

THIOUREA DIOXIDE(TDO) 99% Purity 99%Min Promptly Shipment White crystal powderCompetitive price Qingdao port Thiourea DioxideFormula (NH2)2CSO2      CAS No 1758-73-2 or 4189-44-0Other name Formamidine Sulfinic Acid (FAS), TDO, TUD Melting point 126°C         PH 4 (1% Solution)UN No 3341               Dangerous Goods Class 4.2SpecificationItemsStandardAppearancewhite crystal powderPurity (%)≥99.0Thiourea (%)≤0.10Moisture (%)≤0.05Iron(PPM)≤10Sulphate (%)≤0.17Packing in 25kg woven bag, 50kg fiber drum, 500kg bags or as per customer's requests.Applications1. Pulper bleaching of recycled paper.2. Single stage bleaching of recycled paper.3. Sequential stage bleaching of recycled paper.4. Solubilizing Vat dyes.5. Clearing commercial dyes.6. Reductive bleaching of minerals (primarily Calcium Carbonate).7. Replacing sodium hydrosulfite in all above applications. Storage in a cool (below 30°C ), dry, well ventilated area away from all source of ignition and out of direct sunlight. Keep away from incompatible materials. Keep containers tightly closed. Do not store in unlabeled or mislabeled containers. Protect from moisture. Do not store near combustible materials. Keep containers well sealed, seal only with original vent cap. Ensure pressure relief and adequate ventilation. Store separately from organics and reducing materials. Avoid contamination which may lead to decomposition