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    • Qingdao Starco Chemical Co., Ltd. Follow
      • Urea 46%,Industry Urea 46%,Automotive Grade Urea Prilled,AdBlue Grade Urea,DEF Grade Urea
      Rm. 0811, Century Mansion, No. 39, Donghai West Road, Shinan Dist., Qingdao, Shandong, China (Mainland)
      Totally has 1 empolyees in Tradesns

    Thiourea dioxide/TDO(Cas no:1758-73-2)
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    • Classification：
      Thiourea Dioxide
    • CAS No.：
      1758-73-2
    • Other Names：
      Formamidine sulfinic acid
    • MF：
      CH4N2SO2
    • EINECS No.：
      217-157-8
    • Place of Origin：
      Shandong, China (Mainland)
    • Grade Standard：
      Industrial Grade
    • Purity：
      99%
    • Appearance：
      white crystal powder
    • Application：
      used in textile and paper making
    • Deliverability： 70000 Kilogram/Kilograms per Month
    • Port： SHANGHAI PORT
    • US $ 2.25-2.29/Kilogram（Minimal Quantities 18000Kilogram）
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    Qingdao Starco Chemical Co., Ltd.
    China Shandong
    Trading Company
    Less than 5 People
    Export Model:Have Own Export License
    Export Identification:Test Report
    Main Products:Urea 46%,Industry Urea 46%,Automotive Grade Urea Prilled,AdBlue Grade Urea,DEF Grade Urea
    • Products Description
    • Review List
      Quick Details
    • Classification：
      Thiourea Dioxide
    • CAS No.：
      1758-73-2
    • Other Names：
      Formamidine sulfinic acid
    • MF：
      CH4N2SO2
    • EINECS No.：
      217-157-8
    • Place of Origin：
      Shandong, China (Mainland)
    • Grade Standard：
      Industrial Grade
    • Purity：
      99%
    • Appearance：
      white crystal powder
    • Application：
      used in textile and paper making
    ? ? ? Thiourea Dioxide
    • Formula: (NH2)2CSO2????? CAS No: 1758-73-2 or 4189-44-0

    • Other name: Formamidine Sulfinic Acid (FAS), TDO, TUD?

      ?PH: 4 (1% Solution)
      UN No: 3341?????????????? Dangerous Goods Class: 4.2
      Specification:


      Items

      Standard

      Appearance

      white crystal powder

      Purity :(%)

      ≥99.0

      Thiourea: (%)

      ≤0.10

      Moisture: (%)

      ≤0.05

      Iron(PPM)

      ≤10

      Sulphate: (%)

      ≤0.17

      ?Packing:50kg fiber drums, 25kg/ woven bags,
      Applications:
      1. 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 ), 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.
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