跳轉至內容
Merck
全部照片(3)

文件

229946

Sigma-Aldrich

四硼酸钠

99.998% trace metals basis

同義詞:

Borax,熔融

登入查看組織和合約定價


About This Item

線性公式:
Na2B4O7
CAS號碼:
分子量::
201.22
EC號碼:
MDL號碼:
分類程式碼代碼:
12352302
PubChem物質ID:
NACRES:
NA.22

化驗

99.998% trace metals basis

形狀

powder

mp

741 °C (lit.)

密度

2.367 g/mL at 25 °C (lit.)

SMILES 字串

[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 密鑰

UQGFMSUEHSUPRD-UHFFFAOYSA-N

尋找類似的產品? 前往 產品比較指南

應用

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。

法律資訊

象形圖

Health hazardExclamation mark

訊號詞

Danger

危險聲明

危險分類

Eye Irrit. 2 - Repr. 1B

儲存類別代碼

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

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

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


分析證明 (COA)

輸入產品批次/批號來搜索 分析證明 (COA)。在產品’s標籤上找到批次和批號,寫有 ‘Lot’或‘Batch’.。

已經擁有該產品?

您可以在文件庫中找到最近購買的產品相關文件。

存取文件庫

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)
Borax-catalyzed thiolysis of 1, 2-epoxides in aqueous medium
Gao P, et al.
Tetrahedron Letters, 49(46), 6536-6538 (2008)
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

我們的科學家團隊在所有研究領域都有豐富的經驗,包括生命科學、材料科學、化學合成、色譜、分析等.

聯絡技術服務