Sodium Metabisulfite/Sodium Pyrosulfite industrial grade for wood and paper fiber
Product Description
1.Specification：HG/T 2826-2008
| Item | Index | |
| Superior quality | First class | |
| Main content(Na2S2O4),% ≥ | 96.5 | 95 |
| Iron(Fe),% ≤ | 0.005 | 0.01 |
| Water-insoluble,% ≤ | 0.05 | 0.05 |
| Arsenic(As) ,% ≤ | 0.0001 | --- |
2.Uses
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1) Printing and dyeing mordant
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2) Antichlor in after fabric bleaching
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3) Chemical and medicine reducer and sulfonating agent
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4) Bleaching agent of bamboo
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5) Wood and paper fiber
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6) Nonferrous metal dressing agent
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7) Waste water finishing agent
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8) Rubber coagulator
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9) Alkyl spice aldeheyde in spice industry
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10) Depilating agent
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11) Softening agent and anti-wear agent in leather industry
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12) Reducer of developer and protective agent of fixative in sensitization industry
3.Packing and Transport
Packing：25/50/1000kg bag
Transport: should be protected from rain and sunlight.It is strictly prohibited to store and transport with acids,oxidants and harmful and toxic substances.
Storage: Should be stored in a dry,clean warehouse.The package should be sealed to prevent air oxidation.Guard against moisture.