Sodium metabisulfite
Inquiry
| Post Date: | Jul 09,2025 |
| Expiry Date: | Jan 05,2026 |
| Detailed Description: |
Cas No. :7681-57-4
Molecular Formula:Na2S2O5
Molecule Weight:190.10 Appearance:White or light yellow crystalline powder Quality standard:GB1983——1998 Company standard Item Index Content (as Na2S2O5) ≥ 97.5 Iron(as Fe) % ≤ 0.001 Clarify degree clearly Heavy metals(as Pb) % ≤0.0005 Arsenic(as As) % ≤ 0.0001 Chinese Standard Item Country index Content (as Na2S2O5) ≥ 95.0 Iron(as Fe) % ≤ 0.003 Clarify degree A little turbid Heavy metals(as Pb) % ≤0.0005 Arsenic(as As) % ≤ 0.0001 Main uses: Bleach agent (e.g.candies, cake, bamboo shoots, etc); Loose agent (e.g.bread, cracker etc); Antiseptic and germicide (e.g.fruit juice, tinned food ，brews, the cereals food is defended storage etc); Inhibitor and freshen agent (e.g.day lily, seafood, fruit and vegetable etc) Quality standard:HG/T2826——1997 Company Standard Item Value Content(as Na2S2O5 ) % ≥ 97.0 Fe % (as Fe) % ≤ 0.0015 water-Insoluble % ≤ 0.01 Arsenic(as As) % ≤ 0.0001 Chinese standard Item Value Top-grade First grade Qualified product Content(asNa2S2O5 ) % ≥ 96.0 ≥ 94.0 ≥ 92.5 Fe %(as Fe) ≤ 0.005 ≤ 0.010 ≤ 0.015 water-Insoluble % ≤ 0.05 ≤ 0.05 ≤ 0.10 Arsenic(as As) % ≤ 0.0001 — — 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. |
| CAS Registry Number: | 7681-57-4 |
| Synonyms: | ;Sodium pyrosulfite;disodium disulphite;Sodium metabisulphite;Sodium disulphite;Sodium pyrosulphite;SODIUM DISULFITE;disodium oxidosulfanesulfonate oxide;Sodium Metabi;Metabisulfite Sodium;Sodium Metabisulfite (Food Grade); |
| Molecular Formula: | Na2S2O5 |
| Molecular Weight: | 190.1065 |
| Molecular Structure: | 
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| Hazard Symbols: |  Xn:Harmful; |
| Risk Codes: | R22:; R31:; R41:; |
| Safety Description: | S26:; S39:; S46:; |
| Company: | WeiFang Kailong Chemical Industry Co.,Ltd. [ China ] |
| Contact: | Mr.Tian |
| Tel: | 0086-536-5317817/9 |
| Fax: | 0086-536-5339779 |
| Email: | info@klong.cn |
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