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Sodium sulfite CAS NO.7757-83-7
- Min.Order: 100 Metric Ton
- Payment Terms: L/C,T/T,Other
- Product Details
Keywords
- 7757-83-7
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Quick Details
- ProName: Sodium sulfite
- CasNo: 7757-83-7
- Molecular Formula: Na2SO3
- Appearance: white powder
- Application: used as analytical reagent; used in ph...
- DeliveryTime: Within 3-7 days after receipt of your ...
- PackAge: As customer request
- Port: QINGDAO CHINA
- ProductionCapacity: 100 Metric Ton/Day
- Purity: 98%min
- Storage: Store in a cool,dry place and keep awa...
- Transportation: Common products:Sea/Air/Courier Dange...
- LimitNum: 100 Metric Ton
Superiority
Product name: sodium metabisulfite / sodium metabisulphite
Molecular weight: 190.10
Specification: 25Kg woven bag
Quality guarantee period: 6 months
Details
Basic information
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Product Name: |
Sodium sulfite |
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Synonyms: |
Sodium sulfite anhydrous;SODIUM SULFITE, EXSICCATED;SODIUM SULPHITE;anhydroussodiumsulfite;disodiumsulfite;exsiccatedsodiumsulfite;natriisulphis;natriumsulfid |
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CAS: |
7757-83-7 |
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MF: |
Na2O3S |
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MW: |
126.04 |
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Product Categories: |
Inorganic Chemicals;Inorganics;Water Ttreatment Chemicals;Analytical Reagents for General Use;Disulfide Bridge Cleavage Reagents;Denaturation;Synthetic Reagents;ACS GradeBiochemicals and Reagents;Synthetic Reagents;inorganic compound;Paper, glass, printing and dyeing |
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Mol File: |
7757-83-7.mol |
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Chemical Properties |
|
melting point |
500 °C |
|
density |
2.63 |
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refractive index |
1,484 |
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storage temp. |
Store at RT. |
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solubility |
H2O: 1 M at 20 °C, clear, colorless |
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Water Solubility |
23 g/100 mL (20 ºC) |
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Sensitive |
Hygroscopic |
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Stability |
Stable. Incompatible with strong acids. Moisture and air sensitive. |
Technical specification
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Specification Index name |
Analytically pure-AR |
Chemical pure-CP |
High purity |
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Content(Na2SO3) |
≥97.0 |
≥95.0 |
≥96.0 |
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Clarity test |
Qualified |
Qualified |
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Water insoluble |
≤0.005 |
≤0.01 |
≤0.03 |
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Sulphurous acid( counted by Na2HSO3 ) |
Qualified |
Qualified |
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Free alkali( counted by Na2CO3 ) |
≤0.1 |
≤0.3 |
≤0.5 |
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Chloride(Cl) |
≤0.005 |
≤0.02 |
≤0.05 |
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Thiosulfuric acid(S2O3) |
≤0.01 |
≤0.02 |
≤0.04 |
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Ferrum(Fe) |
≤0.0005 |
≤0.002 |
≤0.003 |
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Heavy metal(counted by Pb) |
≤0.001 |
≤0.002 |
≤0.003 |
|
Arsenic(As) |
≤0.0001 |
≤0.0005 |
≤0.001
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