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Merck
CN

1.06498

氢氧化钠

pellets for analysis EMSURE®

别名:

‘苛性钠’

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关于此项目

线性分子式:
NaOH
化学文摘社编号:
分子量:
40.00
NACRES:
NA.21
EC Index Number:
215-185-5
UNSPSC Code:
12352305
MDL number:
Assay:
≥99% NaOH basis (acidimetric)
Form:
pellets
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产品名称

氢氧化钠, pellets for analysis EMSURE®

InChI

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

SMILES string

[OH-].[Na+]

InChI key

HEMHJVSKTPXQMS-UHFFFAOYSA-M

agency

suitable for SM 4500 - NH3

vapor density

>1 (vs air)

vapor pressure

<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)

product line

EMSURE®

assay

≥99% NaOH basis (acidimetric)

form

pellets

impurities

≤0.0003% Total nitrogen (N)

pH

>14 (20 °C, 100 g/L in H2O)

mp

318 °C (lit.)

solubility

1090 g/L

density

2.13 g/cm3 at 20 °C

anion traces

carbonate (as Na2CO3): ≤1%
chloride (Cl-): ≤0.012%
phosphate (PO43-): ≤0.0005%
silicate (as SiO2): ≤0.001%
sulfate (SO42-): ≤0.010%

cation traces

Al: ≤0.0005%
As: ≤0.0001%
Ca: ≤0.0005%
Cu: ≤0.0002%
Fe: ≤0.0005%
K: ≤0.05%
Mg: ≤0.0005%
Ni: ≤0.00025%
Pb: ≤0.0005%
Zn: ≤0.001%
heavy metals (as Pb): ≤0.0005%

storage temp.

2-30°C

Quality Level

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Analysis Note

含量测定(酸度,NaOH): ≥ 99.0 %
碳酸盐(以 Na₂CO₃ 计): ≤ 1.0 %
氯化物(Cl): ≤ 0.012 %
磷酸盐(PO₄): ≤ 0.0005%
硅酸盐(SiO₂): ≤ 0.001 %
硫酸盐(SO₄): ≤ 0.010 %
总氮(N): ≤ 0.0003 %
重金属(以铅计): ≤ 0.0005 %
Al(铝): ≤ 0.0005 %
As(砷): ≤ 0.0001 %
Ca(钙): ≤ 0.0005 %
Cu(铜): ≤ 0.0002 %
Fe(铁): ≤ 0.0005%
K(钾): ≤ 0.05
Mg(镁): ≤ 0.0005 %
Ni(镍): ≤ 0.00025 %
Pb(铅): ≤ 0.0005 %
Zn(锌): ≤ 0.001 %

Application

氢氧化钠可用作:
  • 脱质子剂,以合成沸石咪唑骨架(ZIF-94)的纳米颗粒。
  • 沉淀剂,以使用硝酸镍合成NiO(氧化镍)纳米颗粒。
  • pH控制剂,以采用硝酸锌和硝酸铬通过水热法合成氧化铬锌(ZnCr2O4)粉末。

General description

氢氧化钠(苛性钠)是氢氧化物离子的无机来源,可用于烷基化酚、醇、醛和酮。氢氧化钠还可用于将酰胺转化为胺,生产二氯羰基,以及皂化羧酸衍生物。

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

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

存储类别

8A - Combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

法规信息

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