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Product information

M F: (NH2)2CSO2

CAS No. 1758-73-2, 4189-44-0

EINECS No.: 217-517-8

UN NO. 3341

Dangerous Class: 4.2

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

Appearance:
White crystal powder

Packing:
25kg plastic woven bags/25kg kraft bags, 50kg fiber drums with double inner plastic 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