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Cas:7757-83-7
ProductName:SODIUM SULPHITE
Purity: 99% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
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| Company Name: |
|
| Tel: |
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| Email: |
sales@anjibio.in |
| Products Intro: |
Cas:7757-83-7
ProductName:Sodium sulphite
Purity: 98% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
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- Sodium Sulphite
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2026-09-10
- CAS:7757-83-7
- Min. Order: 1000KG
- Purity: 99.99%
- Supply Ability: 20TON
- Sodium sulphite
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2021-11-15
- CAS:7757-83-7
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: 200000pcs
- Sodium Sodium
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- $35.00
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2020-11-25
- CAS:69388-84-7
- Min. Order: 100KG
- Purity: 99%
- Supply Ability: 20
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| | Sodium Sulphite Chemical Properties |
| Melting point | 500 °C | | density | 2.63 | | bulk density | 1480kg/m3 | | refractive index | 1,484 | | storage temp. | Store at +5°C to +30°C. | | solubility | H2O: 1 M at 20 °C, clear, colorless | | form | Solid | | Specific Gravity | 2.633 | | color | White to slightly yellow | | Odor | Odorless | | PH Range | 9.0 - 10.5 at 126 g/l at 25 °C | | PH | 9.0-10.5 (25℃, 1M in H2O) | | Water Solubility | 23 g/100 mL (20 ºC) | | Specific Heat Capacity | Cp(crystal): 0.95 J/(g·K), at 25℃ | | Sensitive | Hygroscopic | | Merck | 14,8682 | | Stability: | Stable. Incompatible with strong acids. Moisture and air sensitive. | | Cosmetics Ingredients Functions | REDUCING
ANTIOXIDANT
HAIR WAVING OR STRAIGHTENING | | InChI | 1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2 | | InChIKey | GEHJYWRUCIMESM-UHFFFAOYSA-L | | SMILES | [Na+].[Na+].[O-]S([O-])=O | | CAS DataBase Reference | 7757-83-7(CAS DataBase Reference) | | NIST Chemistry Reference | sodium sulfite(7757-83-7) | | EPA Substance Registry System | Sodium sulfite (7757-83-7) | | Absorption | cut-off at 265nm in H2O at 1M |
| | Sodium Sulphite Usage And Synthesis |
| Chemical Properties | Upon contact with strong or weak acids, Na2SO3 undergoes decomposition, liberating gaseous sulphur dioxide.
Sodium sulfite reacts with aldehydes to yield a bisulfite adduct. However, sulfonic acids are produced from their reaction with ketones.
Solutions of sodium sulfite are oxidised by atmospheric oxygen, yielding sodium sulphate.
This compound is insoluble in ammonia and chlorine.
| | Uses |
sodium sulphite is a white, water-soluble solid and used commercially as an antioxidant and preservative. It is also suitable for the softening of lignin in the pulping and refining processes of wood and lignocellulosic materials.
| | Preparation |
Sodium sulfite can be prepared by treating a solution of sodium hydroxide with sulfur dioxide. When conducted in warm water, Na2SO3 initially precipitates as a white solid. With more SO2, the solid dissolves to give the disulfite, which crystallizes upon cooling.
| | Structure and conformation | According to X-ray crystallography sodium sulfite heptahydrate features pyramidal SO32- centers. The S-O distances are 1.50 and the O-S-O angles are near 106º. | | Toxicity evaluation | Sodium sulfite produces toxic and corrosive fumes. It is a strong reducing agent. It reacts violently with oxidants.
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| | Sodium Sulphite Preparation Products And Raw materials |
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