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Merck

S9640

Sigma-Aldrich

四硼酸钠 十水合物

ACS reagent, ≥99.5%

别名:

硼砂 十水合物, 硼酸钠 十水合物

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About This Item

线性分子式:
Na2B4O7 · 10H2O
CAS号:
分子量:
381.37
EC 号:
MDL编号:
UNSPSC代码:
12352302
PubChem化学物质编号:
NACRES:
NA.21

等级

ACS reagent

Agency

suitable for SM 4500 - NH3

蒸汽压

0.213 hPa ( 20 °C)

方案

≥99.5%

表单

powder or crystals

杂质

≤0.005% Insoluble matter

pH值(酸碱度)

9.15-9.20 (25 °C, 0.01 M in solution)

密度

1.73 g/mL at 25 °C (lit.)

痕量阴离子

chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤0.005%

痕量阳离子

Ca: ≤0.005%
Fe: ≤5 ppm
heavy metals (as Pb): ≤0.001%

SMILES字符串

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

InChI

1S/B4O7.2Na.10H2O/c5-1-7-3-9-2(6)10-4(8-1)11-3;;;;;;;;;;;;/h;;;10*1H2/q-2;2*+1;;;;;;;;;;

InChI key

CDMADVZSLOHIFP-UHFFFAOYSA-N

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相关类别

一般描述

十水合四硼酸钠是一种天然存在的材料,可用作许多有机转化的催化剂或添加剂,如内夫反应、克内文纳格尔缩合反应、取代、加成、邻二醇的选择性甲基化和三甲基硅基炔酮的脱硅基化。

应用

十水四硼酸钠可作为催化剂用于:
  • 使用硫醇合成 β-羟基硫化物,对 1,2-环氧化合物进行区域选择性硫解。
  • 硫醇与缺电子烯烃的杂 Michael 加成,以合成相应的 β-加合物。
  • 无溶剂 Biginelli 反应,以合成 3,4-二氢嘧啶-2(1H)-酮。
还可作为添加剂制备具有高介电性能的聚吡咯-硼砂复合材料。

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


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

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