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Merck
CN

31454

亚硫酸钠

puriss. p.a., reag. Ph. Eur., anhydrous, 98-100.0% (iodometric)

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关于此项目

线性分子式:
Na2SO3
化学文摘社编号:
分子量:
126.04
EC 号:
MDL编号:
UNSPSC代码:
12352302
PubChem化学物质编号:
NACRES:
NA.21
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Agency

USP/NF
reag. Ph. Eur.

质量水平

等级

puriss. p.a.

方案

98-100.0% (iodometric)

表单

solid

杂质

≤0.001% heavy metals (as Pb)
≤0.02% thiosulfate (S2O3)

pH值(酸碱度)

9.0-10.5 (25 °C, 126 g/L)

痕量阴离子

chloride (Cl-): ≤50 mg/kg

痕量阳离子

As: ≤0.2 mg/kg
Ca: ≤50 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Pb: ≤5 mg/kg
Se: ≤10 mg/kg
Zn: ≤10 mg/kg

SMILES字符串

[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

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一般描述

亚硫酸钠是一种无机钠盐。已经提出了快速混合方法来研究氧与亚硫酸钠之间反应的动力学。

应用

亚硫酸钠被用于制备基于小麦面筋的薄膜。

补充剂危害

储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Barron CH and O'Hern HA.
Chemical Engineering Science, 21(5), 397-404 (1966)
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Irissin-Mangata J, et al.
European Polymer Journal, 37(8), 1533-1541 (2001)
Amber R Boles et al.
Biotechnology and bioengineering, 109(3), 637-646 (2011-10-22)
A novel sulfur-utilizing perchlorate reducing bacterial consortium successfully treated perchlorate (ClO₄⁻) in prior batch and bench-scale packed bed reactor (PBR) studies. This study examined the scale up of this process for treatment of water from a ClO ₄⁻ and RDX contaminated
Jingang Wang et al.
Chemosphere, 91(3), 351-357 (2012-12-26)
This paper presents a simple, easy and reliable method for determination of EDTA (ethylenediaminetetraacetic acid) in aqueous system. Using EDTA chelating with ferric irons, an excessive amount of Fe(3+) was added to EDTA solution, and Fe(3+) in excess was reduced
Fabian Leinisch et al.
Chemical research in toxicology, 24(12), 2217-2226 (2011-10-19)
Nitrone spin traps such as 5,5-dimethyl-1-pyrroline-N-oxide (DMPO) are commonly used for free radical detection. Though proven examples are rare, artifact formation must be considered. For example, the Forrester-Hepburn mechanism yields the same radical adduct as that formed by genuine radical

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