亚硫酸钠，Sodium sulfite；≥98%

图片 亚硫酸钠，Sodium sulfite；≥98%
线性分子式: Na2SO3 CAS号: 7757-83-7 分子量: 126.04 EC 号: 231-821-4 MDL编号: MFCD00003503 PubChem化学物质编号: 329824427 NACRES: NA.55
制造商品牌: 西格玛 Sigma-Aldrich
货号（SKU）: S0505
CAS号: 7757-83-7
MDL号: MFCD00003503
签订合同 √ 正规发票 √ 技术支持 √ 质量保障 √ 全程可追溯 √
¥507.31

说明

亚硫酸钠是一种水溶性无机盐，通常用作磺化和磺甲基化反应的试剂。此外，它还用作漂白、脱硫和脱氯剂。

一般描述

Sodium sulfite is a water-soluble inorganic salt that is commonly used as a reagent for sulfonation and sulfomethylation reactions. Additionally, it is also used as a bleaching, de-sulfurizing, and dechlorinating agent.
 

应用

Sodium sulfite can be used as:      
  • A source of sulfur dioxide (SO2) in the synthesis of 1,4 diazabicyclo[2.2.2]octane bis(sulfur dioxide) (DABSO).      
  • A reducing agent in the photocatalytic cyclization of 2-isocyanoaryl thioethers to synthesize 2-CF2/CF3-containing benzothiazoles in the presence of Ir-based catalyst.     
  • A reagent in the selective synthesis of 2-amino-1-iodonaphthalene from 2-naphthylamine in the presence of NaIO3/HCl.
In combination with carboxylic acids, it forms an effective system for the reductive acylation of aromatic nitro compounds.
 
 

属性

质量水平

100

测定

≥98%

形式

powder or crystals

pH值（酸碱度）

9.0-10.5 (25 °C, 126 g/L)

SMILES string

[Na+].[Na+].[O-]S([O-])=O

InChI

1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2

InChI key

GEHJYWRUCIMESM-UHFFFAOYSA-L

 

安全信息

补充剂危害

EUH031

储存分类代码

13 - Non Combustible Solids

WGK

WGK 1

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储存温度 Storage temp.常温阴凉避光
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