Search This Supplers Products:We're running chemical product, mining product(except special approval), feed additive, agriculturalthe exporting of sodidum sulfite anhydrous ,ronggalite lump/powdersodium hydrousufite , sodium fluosilicatesodium metabisulfite , sodium formate, calcium formatezinc sulphate mono/hepta ,zinc oxidesodium carbonate, ferrous sulfate
US $310.001 - 10 metric ton
Paramtents
Place of Origin: Hunan, China (Mainland)
Brand name Rongda
Mol wt: 190.10
Type: Dyestuff Intermediates, Flavor & Fragrance Intermediates, Syntheses Material Intermediates
Packging & Delivery
Min Order1 metric ton
Briefing
Detailed
Commodity name : Sale Sodium metabisulfite
1. Chemical formula:Na2S2O5
2.Standard:Industrial Grade:HG/T2826—2008,Food Grade:GB1893—2008
Physical appearance:White or slightly yellow crystal powder.
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 |
3. Package:Compound plastic woven bag with polyethylene liner, net weight 25kg or 50kg each.
4. 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.
5. 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.
6. Quality-keep time:6 months.
Pictures:
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