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367176

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:
Molecular Weight:
40.00
EC Number:
MDL number:
UNSPSC Code:
12352106
PubChem Substance ID:
NACRES:
NB.22

grade

reagent grade

Quality Level

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

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

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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Qingli Qian et al.
Langmuir : the ACS journal of surfaces and colloids, 28(1), 736-740 (2011-11-15)
Microemulsions are often used in the synthesis of nanoparticles in solution. In this work, we put forward the concept of a "hard microemulsion", which is based on the differential partitioning of water and ethanol solvent molecules inside functional polymer matrices.
Removal of arsenic by bead cellulose loaded with iron oxyhydroxide from groundwater.
Guo X and Chen F.
Environmental Science & Technology, 39(17), 6808-6818 (2005)
Determination of Cr (III) and Cr (VI) in environmental waters by derivative flame atomic absorption spectrometry using flow injection on-line preconcentration with double-microcolumn adsorption.
Sun HW, et al.
Journal of the Iranian Chemical Society, 1(1), 40-46 (2004)
Michael Fairclough et al.
Journal of labelled compounds & radiopharmaceuticals, 57(5), 388-396 (2014-04-03)
[6-O-Methyl-(11)C]diprenorphine ([(11)C]diprenorphine) is a positron emission tomography ligand used to probe the endogenous opioid system in vivo. Diprenorphine acts as an antagonist at all of the opioid receptor subtypes, that is, μ (mu), κ (kappa) and δ (delta). The radiosynthesis
Ravi Bhardwaj et al.
Journal of the Air & Waste Management Association (1995), 59(11), 1331-1338 (2009-12-02)
The impact of different fly ash samples on mercury speciation in simulated flue gas at 140 degrees C was evaluated in this study. Experiments were conducted in a fixed bed reactor to determine the impact of fly ash morphological characteristics

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