Thiourea Dioxide
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Post Date:
Oct 11,2018
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Expiry Date:
Oct 11,2019
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Detailed Description:
Cas No. :1758-73-2
Specs:99% min
Payment Method: TT,LC,DP,DA
Thiourea Dioxide
High Quality
Earliest shipment
Competitive price
Professional Service
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
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CAS Registry Number:
1758-73-2
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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;
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Molecular Formula:
CH4N2O2S
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Molecular Weight:
108.1197
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Molecular Structure:
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Hazard Symbols:
Xn:Harmful;
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Risk Codes:
R22:;
R36/37/38:;
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Safety Description:
S24/25:;
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