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Merck
CN

S9640

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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线性分子式:
Na2B4O7 · 10H2O
化学文摘社编号:
1303-96-4
分子量:
381.37
NACRES:
NA.21
PubChem Substance ID:
329824630
UNSPSC Code:
12352302
EC Number:
215-540-4
MDL number:
MFCD00149193
Assay:
≥99.5%
Grade:
ACS reagent
Form:
powder or crystals

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产品名称

四硼酸钠 十水合物, ACS reagent, ≥99.5%

assay

≥99.5%

InChI key

CDMADVZSLOHIFP-UHFFFAOYSA-N

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;;;;;;;;;;

SMILES string

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

grade

ACS reagent

agency

suitable for SM 4500 - NH3

vapor pressure

0.213 hPa ( 20 °C)

form

powder or crystals

impurities

≤0.005% Insoluble matter

pH

9.15-9.20 (25 °C, 0.01 M in solution)

density

1.73 g/mL at 25 °C (lit.)

anion traces

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

cation traces

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

Quality Level

200

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相关类别

General description

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。

Legal Information

Application

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。

pictograms

Health hazardExclamation mark
GHS08,GHS07

signalword

Danger

Hazard Classifications

Eye Irrit. 2 - Repr. 1B

存储类别

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

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
BCCP1686
BCCN0281
BCCM4928
WXBF3070V
BCCL9614

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