Description
85% 88% 90% Sodium Hydrosulphite Used for Textile and Leather
Sodium Hydrosulfite (powder type)CAS No.:7775-14-6
Chemical Formula:Na2S2O4
Odor:Odorless or with a slight odor of sulfur dioxide
Appearance:Free-flowing white crystalline powder
Pacgage: 50kg,100kg,200kg iron drums with double polyethylene liners; 500kg,1200kgintermediate bluk container(IBC)
Technical Specification:| Index | Technical Grade | Food Additive |
| Na2S2O4 | ≥ 90% | ≥ 88% | ≥ 85% | ≥ 88% |
| Iron (Fe) | ≤20ppm | ≤ 20ppm | ≤ 20ppm | ≤ 20ppm |
| Zinc (Zn) | ≤ 1ppm | ≤ 1ppm | ≤ 1ppm | ≤ 1ppm |
| solution appearance | clear | clear | clear | clear |
| EDTA | / | / | / | qualified |
| Arsenic(As) | / | / | / | ≤ 1ppm |
| Other heavy metal( As Pb) | ≤ 1ppm | ≤ 1ppm | ≤ 1ppm | ≤ 1ppm |
| Formate (As HCHO) | / | / | / | ≤ 0.05% |
| water insolubles | ≤ 0.05% | ≤ 0.05% | ≤ 0.05% | / |
| Cadmium (Cd) | / | / | / | ≤ 2ppm |
| Plumbum (Pb) | / | / | / | ≤ 5ppm |
Sodium Hydrosulfite Usage : 1. Sodium Hydrosulfite/SHS is widely used in the textile industry for reducing dyeing, reducing cleaning, printing and decolorizing, and for the bleaching of fabrics such as silk, wool, and nylon. Since it does not contain heavy metals, the fabric after bleaching is very bright and not easy to fade.
2. Sodium Hydrosulfite/SHS can also be used for bleaching foods, such as gelatin, sucrose, candied fruit, and bleaching of soaps, animal oils, bamboo utensils, and china clay.c
3. Sodium Hydrosulfite/SHS can also be applied to organic synthesis, such as dyes, pharmaceuticals as reducing agents or bleaches.
4. Sodium Hydrosulfite/SHS is the most suitable bleach for wood pulp.
Sodium Hydrosulfite Packing and Loading : (1) Packing: 50kg net/Drum
(2) Loading quantity :420Drums(21MT)/20'container
Complaint
