Sodium Sulphite
- CAS No.
- 7757-83-7
- Chemical Name:
- Sodium Sulphite
- Synonyms
- SODIUM SULPHITE;Sodium sulfite anhydrous;SODIUM SULPHITE ANHYDROUS;natriumsulfid;natriumsulfit;anhydroussodiumsulfite;SULPHITES;natriisulphis;disodiumsulfite;sulfitedesodium
- CBNumber:
- CB00128035
- Molecular Formula:
- Na2O3S
- Molecular Weight:
- 126.04
- MDL Number:
- MFCD00003503
- MOL File:
- 7757-83-7.mol
- MSDS File:
- SDS
Melting point | 500 °C |
---|---|
Density | 2.63 |
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 |
PH | 9.0-10.5 (25℃, 1M in H2O) |
Odor | Odorless |
PH Range | 9.0 - 10.5 at 126 g/l at 25 °C |
Water Solubility | 23 g/100 mL (20 ºC) |
Sensitive | Hygroscopic |
Merck | 14,8682 |
Stability | Stable. Incompatible with strong acids. Moisture and air sensitive. |
CAS DataBase Reference | 7757-83-7(CAS DataBase Reference) |
FDA 21 CFR | 182.3798; 582.3798; 177.1200 |
Substances Added to Food (formerly EAFUS) | SODIUM SULFITE |
SCOGS (Select Committee on GRAS Substances) | Sodium sulfite |
EWG's Food Scores | 1-2 |
NCI Dictionary of Cancer Terms | sodium sulfite |
FDA UNII | VTK01UQK3G |
NIST Chemistry Reference | sodium sulfite(7757-83-7) |
EPA Substance Registry System | Sodium sulfite (7757-83-7) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | GHS07 |
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Hazard statements | H315-H319-H335 | |||||||||
Precautionary statements | P233-P260-P261-P264-P271-P280-P302+P352-P304-P304+P340-P305+P351+P338-P312-P321-P332+P313-P337+P313-P340-P362-P403-P403+P233-P405-P501 | |||||||||
Hazard Codes | Xn | |||||||||
Risk Statements | 31-36/37/38-22-40-36/38 | |||||||||
Safety Statements | 24/25-36-26-22 | |||||||||
WGK Germany | 1 | |||||||||
RTECS | WE2150000 | |||||||||
F | 3-10 | |||||||||
TSCA | Yes | |||||||||
HS Code | 28321000 | |||||||||
Toxicity | LD50 i.v. in mice: 175 mg/kg, Hoppe, Goble, J. Pharmacol. Exp. Ther. 101, 101 (1951) | |||||||||
NFPA 704 |
|
Sodium Sulphite price More Price(55)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich | SX0785 | Sodium Sulfite anhydrous, Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS | 7757-83-7 | 500g | $74.7 | 2024-03-01 | Buy |
Sigma-Aldrich | SX0785 | Sodium Sulfite anhydrous, Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS | 7757-83-7 | 2.5kg | $280 | 2024-03-01 | Buy |
Sigma-Aldrich | SX0785 | Sodium Sulfite anhydrous, Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS | 7757-83-7 | 12kg | $386 | 2024-03-01 | Buy |
Sigma-Aldrich | 901916 | Sodium sulfite anhydrous, Redi-Dri?, reagent grade, ≥98% | 7757-83-7 | 250G | $50.5 | 2024-03-01 | Buy |
Sigma-Aldrich | 901916 | Sodium sulfite anhydrous, Redi-Dri?, reagent grade, ≥98% | 7757-83-7 | 1KG | $92.2 | 2024-03-01 | Buy |
Sodium Sulphite Chemical Properties,Uses,Production
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.
Sodium Sulphite Preparation Products And Raw materials
Raw materials
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Preparation Products
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Supplier | Tel | Country | ProdList | Advantage | |
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Shandong Deshang Chemical Co., Ltd. | +86-0531-8875-2665 +8613153039501 | info@deshangchem.com | China | 656 | 58 |
Hebei Andu Technology Com.,Ltd | +86-86-17798073498 +8617798073498 | admin@hbandu.com | China | 255 | 58 |
Hebei Mojin Biotechnology Co., Ltd | +86 13288715578 +8613288715578 | sales@hbmojin.com | China | 12495 | 58 |
Hebei Chuanghai Biotechnology Co,.LTD | +86-13131129325 | sales1@chuanghaibio.com | China | 5895 | 58 |
Hebei Dangtong Import and export Co LTD | +86-13910575315 +86-13910575315 | admin@hbdangtong.com | China | 1005 | 58 |
Henan Bao Enluo International TradeCo.,LTD | +86-17331933971 +86-17331933971 | deasea125996@gmail.com | China | 2503 | 58 |
Anhui Ruihan Technology Co., Ltd | +8617756083858 | daisy@anhuiruihan.com | China | 994 | 58 |
Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3002 | 58 |
Qingdao RENAS Polymer Material Co., Ltd. | +86-0532-86867058 +86-18562606086 | sales@qdrenas.com | China | 356 | 58 |
Hebei Shengyang Water Conservancy Engineering Co., Ltd. | +8615373025980 | clara@hbshengyang.com | China | 874 | 58 |
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View Lastest Price from Sodium Sulphite manufacturers
Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
---|---|---|---|---|---|---|---|---|
2021-11-15 | Sodium sulphite
7757-83-7
|
US $0.00 / KG | 1KG | 99% | 200000pcs | Qiuxian Baitai New Material Co., LTD | ||
2020-12-22 | Sodium sulphite
7757-83-7
|
US $100.00 / KG | 1KG | 99.9% | 20 tons | Hebei Guanlang Biotechnology Co., Ltd. | ||
2020-11-25 | Sodium Sodium
69388-84-7
|
US $35.00 / KG | 100KG | 99% | 20 | Hebei Henghe Import and Export Trading Co. LTD |
- Sodium sulphite
7757-83-7
- US $0.00 / KG
- 99%
- Qiuxian Baitai New Material Co., LTD
- Sodium sulphite
7757-83-7
- US $100.00 / KG
- 99.9%
- Hebei Guanlang Biotechnology Co., Ltd.
- Sodium Sodium
69388-84-7
- US $35.00 / KG
- 99%
- Hebei Henghe Import and Export Trading Co. LTD
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