Merck
All Photos(3)

30620

Sigma-Aldrich

氢氧化钠

puriss. p.a., ACS reagent, reag. Ph. Eur., K ≤0.02%, ≥98%, 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

等级

ACS reagent
puriss. p.a.

质量水平

Agency

reag. Ph. Eur.

蒸汽密度

>1 (vs air)

蒸汽压

<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)

检测方案

≥98%

形式

pellets

technique(s)

titration: suitable

杂质

≤0.0003% total nitrogen (N)
≤0.0005% heavy metals (as Pb)
≤1% 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-): ≤10 mg/kg
phosphate (PO43-): ≤5 mg/kg
silicate (as SiO2): ≤10 mg/kg
sulfate (SO42-): ≤30 mg/kg

痕量阳离子

Al: ≤5 mg/kg
As: ≤1 mg/kg
Ca: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Hg: ≤0.05 mg/kg
K: ≤200 mg/kg
Mg: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤2 mg/kg
Zn: ≤5 mg/kg

储存温度

15-25°C

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

氢氧化钠是无机碱。它参与由 Au/木炭或 Au/石墨催化的甘油氧化。它还参与无溶剂羟醛缩合反应。

应用

氢氧化钠可用于通过滴定测定胶体二氧化硅的比表面积。它可用于硼氢化钠的直接氧化,其通过循环和线性伏安法、计时电流法和计时电位法进行研究。它可用于组成柠檬酸盐缓冲液和硼酸盐缓冲液。
它可用于以下化合物的合成:
  • 烷基芳基氨基磺基甜菜碱
  • 3-[4-辛基苯氧基乙氧基乙氧基乙基]二甲基氨基丙磺酸盐(XOSB)
  • 三磺基甜菜碱(TriSBn)

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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