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484024

Sodium hydroxide

Name: Sodium hydroxide
Brand: SIGALD

reagent grade, 97%, flakes

Synonym(s):

Caustic soda

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About This Item

Linear Formula:

NaOH

CAS Number:

1310-73-2

Molecular Weight:

40.00

NACRES:

NA.21

PubChem Substance ID:

329757371

UNSPSC Code:

12352316

EC Number:

215-185-5

MDL number:

MFCD00003548

Assay:

97%

Form:

flakes

Grade:

reagent grade

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Properties

grade

reagent grade

Quality Level

100

agency

suitable for DIN 38407-42, suitable for EPA 533, suitable for EPA 8327, suitable for EPA OTM-45

vapor density

>1 (vs air)

vapor pressure

<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)

assay

97%

form

flakes

technique(s)

titration: suitable

mp

318 °C (lit.)

solubility

water: soluble 1260 g/L at 20 °C

density

2.13 g/cm³

application(s)

PFAS testing

SMILES string

[OH-].[Na+]

InChI

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

InChI key

HEMHJVSKTPXQMS-UHFFFAOYSA-M

Description

General description

Sodium hydroxide also known as caustic soda is a water soluble base with a wide range of industrial applications. Purification of diatomite with NaOH enhances its ability to adsorb basic dyes. NaOH when coupled with thermal desorption is reported to improve the degradation of polychlorinated biphenyl (PCB) in PCB contaminated soil. The efficiency of the aqueous solution of sodium citrate (Na₃Ci) and sodium hydroxide (NaOH) to dissolve SO₂ has been investigated.

Application

Sodium hydroxide (NaOH) has been used to trap the hydrogen bromide gas released during the photo-bromination of 4-nitro-o-xylene.
It may be used in the following processes:

Boehm′s titration
dissolution testing
pH adjustment during the silver nanoparticles synthesis

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pictograms

GHS05

signalword

Danger

hcodes

H290,H314

pcodes

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

Hazard Classifications

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

Storage Class

8B - Non-combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

危险化学品

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Kinetics and equilibrium studies from the methylene blue adsorption on diatomite treated with sodium hydroxide.

Zhang J, et al.

Applied Clay Science, 83, 12-16 (2013)

Solubility of SO₂ in aqueous blend of sodium citrate and sodium hydroxide.

Mondal MK, et al.

Fluid Phase Equilibria, 349, 56-60 (2013)

Determination of kinetic and equilibrium parameters of the batch adsorption of Mn(II), Co(II), Ni(II) and Cu(II) from aqueous solution by black carrot (Daucus carota L.) residues.

Fuat Güzel et al.

Journal of hazardous materials, 153(3), 1275-1287 (2007-11-06)

In this study, the effect of temperature on the adsorption of Mn(II), Ni(II), Co(II) and Cu(II) from aqueous solution by modified carrot residues (MCR) was investigated. The equilibrium contact times of adsorption process for each heavy metals-MCR systems were determined.

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Global Trade Item Number

SKU	GTIN
484024-1KG	04061832390321
484024-10KG	04061833636947
484024-25KG	04061833636954