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Sodium Metabisulfite for Industrial Use:
Test Item | Standard Request. | Results of Test | Individual Result |
| Appearance | White or light yellowcrystalline powder | Meet the demand | Pass |
| Content (Na2S2O5%) | ≥95% | 97.26% | Pass |
| SO2% | 65% | 65.55% | Pass |
| Fe% | ≤0.005% | 0.003% | Pass |
| Insoluble substancein water% | ≤0.05% | 0.01% | Pass |
| Heavy metal (Pb)% | ≤0.002% | 0.001% | Pass |
| As% | ≤0.0002% | <0.0001% | Pass |
| PH | 4.0-4.6 | 4.3 | Pass |
Main uses:Mordant of printing and dyeing;Dechlorinate of textile after bleaching;Sulphonated agent and reducer of chemical industry and pharmacy;Bleach of paper pulp, bamboo and timber bleach of stapk;Treatment agent of waste water;Rubber solidifying agent Perfume industry is served as hydrocarbon perfume aldehyde;The hide profession employ to do to molt dose and pliable dose and wearproof dose ;The sensitize industry is served as the developing agent reductant and the protection of fixing bath dose and so on;sewage treatment. etc
Packing: in polythene plastic bag with a polypropylene overbag, paper-plastic composite bag, Kraft bag, etc.
Net weight: 25,50,1000 kilograms per bag or following your demand.
HS code:2832100000
sodium metabisulfite/smbs