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Sigma-Aldrich

Sodium hydroxide

beads, 16-60 mesh, reagent grade, 97%

Synonym(s):

‘Caustic soda’

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About This Item

Linear Formula:
NaOH
CAS Number:
1310-73-2
Molecular Weight:
40.00
EC Number:
215-185-5
MDL number:
MFCD00003548
UNSPSC Code:
12352106
PubChem Substance ID:
329755477
NACRES:
NB.22

grade

reagent grade

Quality Level

100

vapor density

>1 (vs air)

vapor pressure

<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)

assay

97%

form

beads

technique(s)

titration: suitable

particle size

16-60 mesh

mp

318 °C (lit.)

solubility

water: soluble 1260 g/L at 20 °C

density

2.13 g/cm3

SMILES string

[OH-].[Na+]

InChI

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

InChI key

HEMHJVSKTPXQMS-UHFFFAOYSA-M

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General description

Sodium hydroxide also known as caustic soda is a water soluble base with a wide range of industrial applications.

Application

Sodium hydroxide may be used in the following processes:
  • Titration methods.
  • Dissolution testing.
  • As a base for adjusting pH.
  • As a reducing agent to initiate the synthesis of resin-supported silver nanoparticles.
  • As an alternative to sodium hydride in the carbon-11 methylation reaction in the synthesis of [11C]diprenorphine.
  • Preparation of bead cellulose loaded with iron oxyhydroxide (BCF).
  • Synthesis of polyethyleneimine-sodium xanthogenate (PEX).
  • Pretreatment of thickened waste activated sludge during anaerobic digestion.
  • Struvite precipitation recycling technology.
  • Production of sewage-sludge-based activated carbons.
  • Preparation of β-cyclodextrin (β-CD)/cellulose hydrogels.
  • Prion inactivation during industrial decontamination procedure.
  • Pretreatment of sugarcane bagasse for the sugar recovery.
  • In the Impinger to remove acidic gases.

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H290,H314

Hazard Classifications

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

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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