China (Mainland)
Sodium sulfite CAS NO.7757-83-7
- Min.Order: 1 Metric Ton
- Payment Terms: L/C,T/T,Other
- Product Details
Keywords
- Sodium sulfite
- 7757-83-7
- Sodium sulfite anhydrous;SODIUM SULFITE, EXSICCATED;SODIUM SULPHITE;anhydroussodiumsulfite;disodiumsulfite;exsiccatedsodiumsulfite;natriisulphis;natriumsulfid
Quick Details
- ProName: Sodium sulfite
- CasNo: 7757-83-7
- Molecular Formula: Na2O3S
- Appearance: white crystals or powder
- Application: It is used in dyeing industry as deoxi...
- DeliveryTime: Within 15days after deposit
- PackAge: at your request
- Port: BeiJing/shanghai,China
- ProductionCapacity: 1000 Metric Ton/Year
- Purity: 98%min
- Storage: cool and dry place
- Transportation: By Sea,By Air,By Courier
- LimitNum: 1 Metric Ton
- Water Content: 0.01% max
- Grade: Industrial Grade,Food Grade,Pharma Gra...
Superiority
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Details
1. Good Sodium Sulfite 7757-83-7
2.Competitive Price&Good service
3.free sample and quick delivery
Product Description
Name: Good Sodium Sulfite 7757-83-7
Physical and chemical properties:
White crystalline or powder form; triangular prism crystal shape; alkaline water solution with pH at 9 – 9.5; The highest water solubility is about 28% with temperature at 33.4°C. When exposed to air, it is oxidized to form sodium sulfate. When heated to high temperature, it decomposes to form sodium sulfide; Density: 2.633(15.4°C), Refractive Index: 1.565; Molecular Weight: 126.04.
[Implementation of standards]:GB9005-88
| Item | Value | |
| Top-grade | First grade | |
| sodium sulfite(Na2SO3)%≥ | 98 | 97 |
| Fe,%≤ | 0.003 | 0.003 |
| water-Insoluble%≤ | 0.01 | 0.02 |
| Free alkali(as Na2CO3),%≤ | 0.001 | 0.1 |
| Sulfate(as Na2SO4),%≤ | 1.2 | 2.5 |
| Chloride(as NaCl),%≤ | 0.003 | 0.1 |
Application:
It is used in dyeing industry as deoxidizer and bleaching agent for a variety of cotton fabric treating and scouring, which can prevent fabrics from local oxidation and deterioration of fibre strength. In photographic industry it is used as a reagent. In organic industry it is used as reducing agent in production of m-phenylenediamine, 25 - bared oxazolone, amino salicylic acid, etc. Textile industry uses it as a stabilizer for synthetic fibre. Other applications include various uses in paper mills, electronic industry, water treatment, etc.