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30620-M

氢氧化钠

Name: 氢氧化钠
Brand: SIAL

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

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:

1310-73-2

分子量:

40.00

NACRES:

NA.21

PubChem Substance ID:

329753547

UNSPSC Code:

12352302

EC Number:

215-185-5

MDL number:

MFCD00003548

Assay:

≥98%

Form:

pellets

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属性

Quality Segment

100

agency

reag. Ph. Eur.

vapor density

>1 (vs air)

vapor pressure

<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)

grade

ACS reagent, puriss. p.a.

assay

≥98%

form

pellets

technique(s)

titration: suitable

impurities

≤0.0003% total nitrogen (N), ≤0.002% heavy metals (as Ag), ≤1.0% Na₂CO₃, ≤5 ppm heavy metals (as Pb)

mp

318 °C (lit.)

solubility

water: soluble 1260 g/L at 20 °C

density

2.13 g/cm³

anion traces

chloride (Cl^-): ≤0.005%, silicate (as SiO₂): ≤0.01%, phosphate (PO₄^3-): ≤0.0005%, sulfate (SO₄^2-): ≤30 ppm

cation traces

Ca: ≤0.002%, Fe: ≤ 0.0010%, Pb: ≤0.001%, Al: ≤0.0005%, As: ≤0.0001%, Cu: ≤0.0005%, Hg: ≤0.05 ppm, K: ≤0.02%, Mg: ≤0.0005%, Ni: ≤0.0005%, Zn: ≤0.0005%

SMILES string

[OH-].[Na+]

InChI

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

InChI key

HEMHJVSKTPXQMS-UHFFFAOYSA-M

说明

General description

Sodium hydroxide is an inorganic base. It participates in the oxidation of glycerol, catalyzed by Au/charcoal or Au/graphite. It also participates in solvent-free aldol condensation reaction.

Application

Sodium hydroxide may be employed for determination of specific surface area of colloidal silica, via titration. It may be employed for direct oxidation of sodium borohydride, which was investigated by cyclic and linear voltammetry, chronoamperometry and chronopotentiometry. It may be used to compose citrate buffer and borate buffers.
It may be used in the synthesis of following compounds:

alkylaryl amidosulfobetaines
(3 -[4-teroctylphenoxyethoxyethoxyethyl] dimethylammonio propane sulfonate (XOSB)
trisulfobetaines (TriSBn)

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象形图

GHS05

警示词

Danger

危险代码

H290,H314

预防性声明

P234 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338

Hazard Classifications

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

怎么回事？

WGK 1

闪点 (F)

Not applicable

闪点 (°C)