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Merck
CN

229946

Sigma-Aldrich

四硼酸钠

99.998% trace metals basis

别名:

Borax,熔融

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About This Item

线性分子式:
Na2B4O7
CAS号:
分子量:
201.22
EC 号:
MDL编号:
UNSPSC代码:
12352302
PubChem化学物质编号:
NACRES:
NA.22
方案:
99.998% trace metals basis
表单:
powder

质量水平

方案

99.998% trace metals basis

表单

powder

mp

741 °C (lit.)

密度

2.367 g/mL at 25 °C (lit.)

SMILES字符串

[Na+].[Na+].[O-]B1Ob2ob([O-])ob(O1)o2

InChI

1S/B4O7.2Na/c5-1-7-3-9-2(6)10-4(8-1)11-3;;/q-2;2*+1

InChI key

UQGFMSUEHSUPRD-UHFFFAOYSA-N

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应用

四硼酸钠也称为硼砂(Na2B4O7),可用作以下反应的催化剂:
  • 以H2O2为氧化剂将将烷基和芳基硫化物化学选择性氧化为亚砜和砜。
  • 通过Knoevenagel缩合和Michael 加成途径合成吡啶、二烯、苯胺和二氢吡喃并[3,2-c]色烯。
  • 1,2-环氧化物硫解生成β-羟基硫化物。

法律信息

象形图

Health hazardExclamation mark

警示用语:

Danger

危险声明

危险分类

Eye Irrit. 2 - Repr. 1B

储存分类代码

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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访问文档库

Borax-catalyzed thiolysis of 1, 2-epoxides in aqueous medium
Gao P, et al.
Tetrahedron Letters, 49(46), 6536-6538 (2008)
Borax-Catalyzed and pH-Controlled Selective Oxidation of Organic Sulfides by H2O2: An Environmentally Clean Protocol
Hussain S, et al.
European Journal of Organic Chemistry, 2009(20), 3319-3322 (2009)
Borax catalyzed domino reactions: synthesis of highly functionalised pyridines, dienes, anilines and dihydropyrano [3, 2-c] chromenes
Molla A and Hussain S
Royal Society of Chemistry Advances, 4(56), 29750-29758 (2014)
Shuai Liu et al.
Journal of the American Heart Association, 9(8), e014757-e014757 (2020-04-21)
Background The protective effects of polyamines on cardiovascular disease have been demonstrated in many studies. However, the roles of spermidine, a natural polyamine, in abdominal aortic aneurysm (AAA) disease have not been studied. In this study, we investigated the influence
Tatiana S Fukuji et al.
Journal of pharmaceutical and biomedical analysis, 51(2), 430-438 (2009-06-24)
In this work, the separation of nine phenolic acids (benzoic, caffeic, chlorogenic, p-coumaric, ferulic, gallic, protocatechuic, syringic, and vanillic acid) was approached by a 3(2) factorial design in electrolytes consisting of sodium tetraborate buffer (STB) in the concentration range of

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