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Thiourea Dioxide

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  Post Date: Oct 11,2018
  Expiry Date: Oct 11,2019
  Detailed Description: Cas No. :1758-73-2 Specs:99% min
Payment Method: TT,LC,DP,DA
Thiourea Dioxide

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Formula (NH2)2CSO2 CAS No 1758-73-2 or 4189-44-0
Other name Formamidine Sulfinic Acid (FAS), TDO, TUD
Melting point 126°C 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/500kg/1000kg woven bags, 25kg kraft 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°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

  CAS Registry Number:

1758-73-2
  Synonyms: ;Aminoiminomethanesulphinic acid;Thiourea dioxide;Thiurea Dioxide;Formamidinesulphinic acid;Formamidine sulfinic acid;(E)-amino(imino)methanesulfinic acid;Thiourea S,S-dioxide;(E)-amino(imino)methanesulfinate;1-(dioxido-lambda~6~-sulfanylidene)methanediamine;
  Molecular Formula: CH4N2O2S
  Molecular Weight: 108.1197
  Molecular Structure: 1758-73-2 Formamidinesulfinic acid
  Hazard Symbols:  Xn:Harmful;
  Risk Codes: R22:;
R36/37/38:;
  Safety Description: S24/25:;

  Company: Sinoright International Trade Co. Ltd.     [ China ]          
  Contact: Harry Du
  Tel: 0086-411-86596755 39210844 130
  Fax: 0086-411-86596060 39210855
  Email: harry.du@sinoright.net
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