Sodium metabisulfite - Wikipedia
网页Sodium metabisulfite or sodium pyrosulfite (IUPAC spelling; Br. E. sodium metabisulphite or sodium pyrosulphite) is an inorganic compound of chemical formula Na 2 S 2 O 5. The substance is sometimes referred to as disodium metabisulfite. It is used as a disinfectant, antioxidant, and preservative agent. [2]
Disulfite - Wikipedia
网页A disulfite, commonly known as metabisulfite or pyrosulfite, is a chemical compound containing the ion S 2 O 2− 5. It is a colorless dianion that is primarily marketed in the form of sodium metabisulfite or potassium metabisulfite. When dissolved in water, these salts release the hydrogensulfite HSO − 3 anion.
焦亚硫酸钠 - 百度百科
网页配制：取 硫代硫酸钠 26g与 无水碳酸钠 0.20g，加新沸过的冷水适量使溶解成1000mL，摇匀，放置1个月后滤过。. 标定：取在120℃干燥恒重的基准 重铬酸钾 约0.15g，精密称定，置碘瓶中，加水50mL使溶解，加碘化钾2.0g ，轻轻振摇使溶解，加稀硫酸40mL，摇匀，密塞 ...
Pyrosulfate - Wikipedia
网页In chemistry, disulfate or pyrosulfate is the anion with the molecular formula S. 2O2−. 7. Disulfate is the IUPAC name. [1] . It has a dichromate -like structure and can be visualised as two corner-sharing SO 4 tetrahedra, with a bridging oxygen atom. [2] . In this anion, sulfur has an oxidation state of +6.
Pyrosulfite-Involved Synthesis of Sulfides by Palladium-Catalyzed ...
网页2023年7月11日 · Abstract. The decarboxylative coupling using carboxylic acid and potassium metabisulfite, promoted by a palladium catalyst, is reported for the generation of sulfides. The coupling is performed using the easily available carboxylic acid and environmentally friendly inorganic sulfides as a divalent inorganic sulfur source.
SODIUM METABISULFITE, SODIUM PYROSULFATE - Water …
网页Description: White to slight yellow crystals with a sulfurous odor. When in solution, sodium metabisulfite is formed. It has a solubility in water of 54 g/100 ml at 20°C and is avail able at a commercial strength of 97.5-99.0% sodium meta bisulfite. Use: Used to remove chlorine and other oxidants. Purity Requirements:
Sodium disulfite CAS 7681-57-4 | 106528 - Merck
网页Sodium disulfite MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents. CAS #: 7681-57-4 EC Number: 231-673-0 Molar Mass: 190.11 g/mol Hill Formula: Na₂O₅S₂ Grade: ACS,Reag. Ph Eur.
Sodium metabisulfite - MilliporeSigma
网页Sodium metabisulfite anhydrous, free-flowing, Redi-Dri™, ReagentPlus®, ≥99%; CAS Number: 7681-57-4; EC Number: 231-673-0; Synonyms: Sodium disulfite,Sodium pyrosulfite; Linear Formula: Na2S2O5; find Sigma-Aldrich-799343 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich.
Electronic spectra, photochemistry, and autoxidation mechanism …
网页Electronic spectra, photochemistry, and autoxidation mechanism of the sulfite-bisulfite-pyrosulfite systems. SO2-, SO3-, SO4-, and SO5- radicals. E. Hayon, A. Treinin, and ; J. Wilf
Sodium metabisulfite - Sodium disulfite, Sodium pyrosulfite
网页Synonym (s): Sodium disulfite, Sodium pyrosulfite, Sodium metabisulfite. Linear Formula: Na2S2O5. CAS Number: 7681-57-4. Molecular Weight: 190.11. EC Number:
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