硼酸，Boric acid；ACS reagent, ≥99.5%

图片 硼酸，Boric acid；ACS reagent, ≥99.5%
线性分子式: H3BO3 CAS号: 10043-35-3 分子量: 61.83 EC 号: 233-139-2 MDL编号: MFCD00011337 eCl@ss: 38120104 PubChem化学物质编号: 329773111 NACRES: NA.21
制造商品牌: 西格玛 Sigma-Aldrich
货号（SKU）: B0394
CAS号: 10043-35-3
MDL号: MFCD00011337
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说明

一般描述

Boric acid is a weak monobasic Lewis acid(electron pair acceptor), which finds application in the areas of glass making,fire retardant, lubrication agent, antiseptic agent, fertilizer, buffer, and neutronabsorber.
 

应用

Boric acid can be used as a catalyst to synthesize:
  • N-substituted cinnamamides via amidation reaction between cinnamic acid and benzylamines.
  • β-Aminoalcohols through the regioselective epoxides ring opening with aromatic amines in the presence of glycerol as a co-catalyst.
  • Organosulfur compounds via thia-Michael addition of thiols to α, β-unsaturated compounds.
It can also be used as an activator for the solvent-free reduction of aldehydes and ketones to alcohols in the presence of sodium borohydride.
 
 

属性

等级

ACS reagent

质量水平

200

蒸汽压

2.6 mmHg ( 20 °C)

测定

≥99.5%

形式

powder

technique(s)

PCR: suitable

杂质

≤0.005% Insoluble in methanol
≤0.05% Nonvolatile with methanol

mp

160 °C (dec.) (lit.)

溶解性

water: soluble

密度

1.440 g/cm3

痕量阴离子

chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤0.01%

痕量阳离子

Ca: ≤0.005%
Fe: ≤0.001%
heavy metals: ≤0.001% (by ICP)

SMILES string

OB(O)O

InChI

1S/BH3O3/c2-1(3)4/h2-4H

InChI key

KGBXLFKZBHKPEV-UHFFFAOYSA-N

 

安全信息

象形图

Health hazard
GHS08

警示用语：

Danger

危险声明

H360FD

危险分类

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

商品规格
属性名称属性值
储存温度 Storage temp.常温阴凉避光
全球实时库存 Availability √美国St. Louis ≥ 20 | 欧洲Eur. ≥ 16 | 東京Tokyo ≥ 5 | 香港与北京 ≥ 20
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