1 - 20 metric ton
21 - 50 metric ton
51 - 100 metric ton
group nameSodium metabisulfite
Min Order1 metric ton
modelSodium Metabisulphite
payment methodL/C, D/P, Western Union, T/T
update timeMon, 21 Mar 2022 10:08:22 GMT
Place of Origin Hunan, China (Mainland)
Brand name Rongda
Mol wt 190.10
Type Dyestuff Intermediates, Flavor & Fragrance Intermediates, Syntheses Material Intermediates
Melting point 300℃
Hs code 28321000
Density 1.48
Other application water treatment
Application2 Printing and Dyeing Fertilizer
Shipping time 7-15days after ordering
Weight1000.00kg / metric ton
Min Order1 metric ton
96% sodium metabisulphite
1. Chemical formula:Na2S2O5
2. Standard:Industrial Grade:HG/T2826—2008,Food Grade:GB1893—2008
3. Physical appearance:White or slightly yellow crystal powder.
4. Product Specification:
| Index | ||
Technical Grade | Food Grade | ||
| Special | First | |
Na2S2O5 % ≥ | 96.5 | 95.0 | 96.5 |
Iron (Fe) ≤ | 50ppm | 100ppm | 30ppm |
Clear degree | — | — | Through the test |
Water-fast material % ≤ | 0.05 | 0.05 | — |
Heavy metal(Pb) % ≤ | — | — | 5ppm |
Arsenic(As) ≤ | 1ppm | — | 1ppm |
Item | Standard | Result | |||
Na2S2O5 | 97%min | 97.27% | |||
Heavy Metals | 0.0015%max | ≤0.001% | |||
Arsenic | 0.0002%max | ≤0.0002% | |||
Iron | 0.0050%max | ≤0.0020% | |||
Water insoluble | 0.05%max | ≤0.01% | |||
PH value | 4-4.6 | 4.5 |
5. Package:Compound plastic woven bag with polyethylene liner, net weight 25kg or 50kg each.
6. Notice: Store it in aeration and shady place . Not put it together with strong acids, oxidants. Avoid the
wrappage being perforated and prevent from water and moisture when conveyed. Exposure to moisture
will make it to be oxidized easily to release SO2. Do not store it for long time.
7. Aplication: Bleaching agent for textiles. Dechlorination agent for Bleached textiles. Bleaching agent
for paper pulps. Bactericide and antiseptic in food industries. Disposal agent for waste water,etc.
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