Merck
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157953

Sigma-Aldrich

连二亚硫酸钠

technical grade

Synonym(s):
亚硫酸氢钠, 连二亚硫酸钠
Linear Formula:
NaO2SSO2Na
CAS Number:
Molecular Weight:
174.11
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.21

等级

technical grade

质量水平

200

测定

≥82.5% (iodometric)

形式

powder

pH值(酸碱度)

7-9 (20 °C, 50 g/L)

溶解性

water: soluble(lit.)

痕量阳离子

heavy metals: ≤0.002%

SMILES string

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

InChI

1S/2Na.H2O4S2/c;;1-5(2)6(3)4/h;;(H,1,2)(H,3,4)/q2*+1;/p-2

InChI key

JVBXVOWTABLYPX-UHFFFAOYSA-L

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一般描述

连二亚硫酸钠(Na2S2O4)是白色结晶钠盐。它在大气氧存在下分解产生硫酸氢钠。它是由锌还原亚硫酸溶液中的亚硫酸氢钠制备的。它广泛用于纺织工业中布料染色前的脱色。

应用

在研究中,连二亚硫酸钠可用作还原剂,用于还原氧化石墨。
连二亚硫酸钠被用作通过产生不对称纳米颗粒包封多核苷酸中的荧光猝灭剂。它还以缓冲液的形式用于洗脱参与质谱法(MS)鉴定共价激酶抑制剂细胞靶标的探针标记蛋白。

包装

5, 100 g in glass bottle
2 kg in glass bottle

象形图

FlameExclamation mark

警示用语:

Danger

危险声明

危险分类

Acute Tox. 4 Oral - Eye Irrit. 2 - Self-heat. 1

补充剂危害

储存分类代码

4.2 - Pyrophoric and self-heating hazardous materials

WGK

WGK 1

闪点(F)

Not applicable

闪点(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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