Merck
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06203

Sigma-Aldrich

氢氧化钠

puriss., meets analytical specification of Ph. Eur., BP, NF, E524, 98-100.5%, pellets

Synonym(s):
‘苛性钠’
Linear Formula:
NaOH
CAS Number:
Molecular Weight:
40.00
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.21

蒸汽密度

>1 (vs air)

质量水平

蒸汽压

<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)

等级

puriss.

检测方案

98-100.5%

形式

pellets

质量

meets analytical specification of Ph. Eur., BP, NF, E524

杂质

≤0.0005% total nitrogen (N)
≤0.002% heavy metals (as Pb)
≤0.5% Na2CO3

mp

318 °C (lit.)

溶解性

water: soluble 1260 g/L at 20 °C

密度

2.13 g/cm3 at 20 °C

痕量阴离子

chloride (Cl-): ≤20 mg/kg
phosphate (PO43-): ≤10 mg/kg
silicate (as SiO2): ≤100 mg/kg
sulfate (SO42-): ≤30 mg/kg

痕量阳离子

Al: ≤10 mg/kg
As: ≤2 mg/kg
Ca: ≤10 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
K: ≤1000 mg/kg
Pb: ≤0.5 mg/kg

SMILES string

[OH-].[Na+]

InChI

1S/Na.H2O/h;1H2/q+1;/p-1

InChI key

HEMHJVSKTPXQMS-UHFFFAOYSA-M

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Related Categories

一般描述

氢氧化钠,也称为碱液和苛性钠,是一种强碱,作为中和剂广泛用于化学工业、造纸、石油炼制、清洁化合物和下水道清洁剂。

应用

氢氧化钠可用作:
  • 试剂,在金催化下甘油选择性氧化成甘油酸。
  • 催化剂,用于醇与氢硅烷的交叉脱氢偶联,以合成硅醚。
  • 碱,用于芳基卤化物和炔的无过渡金属 Sonogashira 型偶联,以 PEG 为相转移剂合成炔酮。

象形图

Corrosion

警示用语:

Danger

危险声明

危险分类

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

储存分类代码

8B - Non-combustible, corrosive hazardous materials

WGK

WGK 1

闪点(F)

Not applicable

闪点(C)

Not applicable


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