CAS 7681-57-4

Pirosulfito de sodio

Descripción:

Pirosulfito de sodio, también conocido como metabisulfito de sodio, es un compuesto inorgánico con la fórmula química Na2S2O5. Aparece como un polvo cristalino blanco a amarillento y es altamente soluble en agua, produciendo una solución que es ácida por naturaleza. Este compuesto se utiliza comúnmente como conservante y antioxidante en las industrias de alimentos y bebidas, particularmente en el vino y las frutas secas, debido a su capacidad para inhibir el crecimiento microbiano y la oxidación. Pirosulfito de sodio libera dióxido de azufre cuando se disuelve en agua, lo que contribuye a sus propiedades conservantes. Además, encuentra aplicaciones en varios procesos industriales, incluyendo la fotografía, la fabricación textil y como agente reductor en reacciones químicas. Aunque generalmente se considera seguro en cantidades reguladas, la exposición a altas concentraciones puede causar irritación respiratoria y reacciones alérgicas en individuos sensibles. El manejo y almacenamiento adecuados son esenciales para mitigar cualquier peligro potencial asociado con este compuesto.

Fórmula: H₂O₅S₂·2Na

InChI: InChI=1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)

Clave InChI: InChIKey=ZBVPOSMABOMSMZ-UHFFFAOYSA-N

SMILES: S(S(=O)O)(=O)(=O)O.[Na]

Sinónimos:

• Campden Tablets
• Colorstrip Catalyst 100
• Dinatriumdisulfit
• Disodium Disulphite
• Disodium disulfite
• Disodium metabisulfite
• Disodium pyrosulfite
• Disodium pyrosulfite (Na2S2O5)
• Disodium pyrosulfite (Na₂S₂O₅)
• Disulfite de disodium
• Disulfito De Disodio
• Disulfurous acid, sodium salt (1:2)
• E 223
• Fertisilo
• NSC 158277
• NSC 227243
• Natriumdisulfite
• Natriummetabisulfit
• Pyrosulfurous acid, disodium salt
• Sobis
• Sobisu
• Sodium Disulfite
• Sodium Metabisulfite
• Sodium Metabisulphite AR (1LB/BT)
• Sodium disulfite (Na2S2O5)
• Sodium disulfite (Na₂S₂O₅)
• Sodium metabisulfite (Na2S2O5)
• Sodium metabisulfite (Na₂S₂O₅)
• Sodium metabisulphite
• Sodium pyrosulfite
• Sodium pyrosulfite (Na2S2O5)
• Sodium pyrosulfite (Na₂S₂O₅)
• Sodium sulfur oxide (Na₂S₂O₅)
• Sodium disulphite
• Sodium pyrosulphite
• Sodium Metabisulfite (Food Grade)
• Disulfurous acid, disodium salt
• disodium oxidosulfanesulfonate oxide
• Metabisulfite Sodium

Sodium metabisulfite, ACS, 97% min

CAS: 7681-57-4

Sodium metabisulfite is used as an active ingredient in campden tablets, as a cleaning agent for potable water reverse osmosis membranes, as a preservative and an antioxidant in food. It also acts as a corrosion inhibitor in oil and gas industry, as a bleaching agent in the production of coconut cr

Fórmula: Na₂O₅S₂

Pureza: 97%

Peso molecular: 190.09

Ref: 02-040115

Sodium metabisulfite, 97%

CAS: 7681-57-4

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Sci

Fórmula: Na₂O₅S₂

Pureza: 97%

Forma y color: White to pale cream or pale yellow, Crystals or powder or crystalline powder

Peso molecular: 190.09

Ref: 02-A17351

Sodium metabisulfite, SO{2} 58.5% min

CAS: 7681-57-4

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Sci

Fórmula: Na₂O₅S₂

Peso molecular: 190.09

Ref: 02-033375

Sodium Metabisulfite

CAS: 7681-57-4

Sodium sulfites

Fórmula: Na₂S₂O₅

Forma y color: White Powder

Peso molecular: 189.89825

Ref: 45-1614396

Sodium metabisulfite

CAS: 7681-57-4

Fórmula: Na₂O₅S₂

Pureza: 96%

Forma y color: Solid

Peso molecular: 190.1065

Ref: IN-DA0035LQ

Sodium metabisulfite

CAS: 7681-57-4

Fórmula: Na₂O₅S₂

Pureza: ≥ 95.0%

Forma y color: White to off-white crystalline powder

Peso molecular: 190.10

Ref: 7W-GK1356

Sodium metabisulfite

CAS: 7681-57-4

Sodium metabisulfite

Fórmula: HO₃S·Na

Pureza: ≥95%

Forma y color: white crystalline powder

Peso molecular: 104.06g/mol

Ref: 54-IN3247

Sodium metabisulfite

CAS: 7681-57-4

Pureza: 97.0%

Forma y color: Solid, Crystalline Powder or Powder

Peso molecular: 190.08999633789062

Ref: 10-F044703

Sodium Metabisulfite

CAS: 7681-57-4

Fórmula: Na·O₅S₂

Forma y color: Off-White

Peso molecular: 190.11

Ref: TR-S667060

Sodium Metabisulphite extrapure AR, 98%

CAS: 7681-57-4

Fórmula: Na₂S₂O₅

Pureza: min. 98%

Forma y color: White, Crystalline compound, Clear, Colourless

Peso molecular: 190.10

Ref: SR-21705

Sodium Metabisulphite extrapure AR, ACS, ExiPlus, Multi-Compendial, 98%

CAS: 7681-57-4

Fórmula: Na₂S₂O₅

Pureza: min. 98%

Forma y color: White, Crystalline powder, Clear, Colourless

Peso molecular: 190.10

Ref: SR-52693

Sodium Disulfite

CAS: 7681-57-4

Fórmula: H₂O₅S₂·Na

Peso molecular: 146.13 22.99

Ref: 4Z-S-175004

Sodium metabisulfite

CAS: 7681-57-4

Sodium metabisulfite is a preservative used to inhibit microbial growth in food and drinks. This chemical has been shown to cause bronchoconstriction in animals, but the mechanism for this effect is not well understood. Sodium metabisulfite may also cause anaphylactic reactions in humans. There are no toxicity studies available for sodium metabisulfite injection solutions, but it has been shown that anhydrous sodium metabisulfite can be toxic at high doses. The effects of sodium metabisulfite on human cells have been studied using a surface methodology and cytotoxicity assay. These experiments showed that sodium metabisulfite significantly reduced cellular viability and had significant cytotoxic effects on cells. The mechanism of this cell death was found to be due to the enzyme activity of sulfite oxidase, which produces hydrogen peroxide as a by-product. This hydrogen peroxide causes oxidative stress and leads to the production of reactive oxygen species (ROS) that induce DNA damage

Fórmula: Na₂S₂O₅

Pureza: Min. 97%

Forma y color: Powder

Peso molecular: 190.11 g/mol

Ref: 3D-FS40910