Sodium hydroxide, ACS reagent, pellets, 2.5KG

SKU:
221465-2.5KG
$216.00

Description

Sodium hydroxide, ACS reagent, ≥97.0%, pellets, 2.5KG

Synonym(s):
‘Caustic soda’
Linear Formula:
NaOH
CAS Number:
1310-73-2
Molecular Weight:
40.00
EC Number:
215-185-5
MDL number:
MFCD00003548
PubChem Substance ID:
329752270
NACRES:
NA.21

PROPERTIES

grade

ACS reagent

Quality Level

200

vapor density

>1 (vs air)

vapor pressure

<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)

assay

≥97.0%

form

pellets

technique(s)

cell culture | mammalian: suitable
titration: suitable

impurities

≤0.001% N compounds
≤0.02% NH4OH ppt.
≤1.0% Na2CO3

mp

318 °C (lit.)

solubility

water: soluble 1,260 g/L at 20 °C

density

2.13 g/cm3 at 20 °C

anion traces

chloride (Cl-): ≤0.005%
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤0.003%

cation traces

Fe: ≤0.001%
Hg: ≤0.1 ppm
K: ≤0.02%
Ni: ≤0.001%
heavy metals (as Ag): ≤0.002%

SMILES string

[OH-].[Na+]

InChI

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

InChI key

HEMHJVSKTPXQMS-UHFFFAOYSA-M

General description

Sodium hydroxide (NaOH) also known as caustic soda is a water soluble inorganic base with a wide range of industrial application such as titration,[1] dissolution testing[2] and in impinger to remove acidic gases.[3] It participates in the oxidation of glycerol catalyzed by Au/charcoal or Au/graphite.[4] It participates in solvent-free aldol condensation reaction.[5]

Application

Sodium hydroxide (NaOH) was used in the following processes:
  • Preparation of sodium 3,3′-bis(sulfonato)-4,4′-bis(chloroacetamido)azobenzene (BSBCA) that is utilized in protein cross-linking techniques.[6]
  • Preparation of electrolyte solution to study the effect of electrolyte composition on the conversion of CO2 to CO by electrochemical reduction.[7]
  • Preparation of CSK (cytoskeleton) buffer for the three-dimensional (3D) slide method of preserving the 3D chromatin structure of testicular germ cells.[8]
  • Synthesis of ZSMs (zeolite socony mobils).[9]
Sodium hydroxide may be employed for the deterimination of specific surface area of colloidal silica, via titration.[10] It may be employed for the direct oxidation of sodium borohydride, which was investigated by cyclic and linear voltammetry, chronoamperometry and chronopotentiometry.[11] It may be used to prepare citrate buffer and borate buffer.[12] It may be used in the synthesis of :
  • alkylaryl amidosulfobetaines[13]
  • (3 -[4-teroctylphenoxyethoxyethoxyethyl] dimethylammonio propane sulfonate (XOSB)[13]
  • trisulfobetaines (TriSBn)[13]
Sodium hydroxide may be used as a base in titration methods[1], dissolution testing[2], for adjusting pH[14] and in the impinger to remove acidic gases.[1]
It may be used in the following processes:
  • Conversion of glycerol to glyceric acid in the presence of gold catalyst.[15]
  • Palladium-catalyzed cross-coupling reaction between vinylalkoxysilanes and aryl bromides or chlorides to form styrenes.[16]

Packaging

25, 500, 6×500 g in poly bottle
1, 2.5 kg in poly bottle
12, 25, 50 kg in poly drum

Other Notes

Go to Redi-Dri™ Product Listing 795429

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

SAFETY INFORMATION

Pictograms

GHS05

Signal Word

Danger

Hazard Statements

H290 - H314

Precautionary Statements

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 Code

8B - Non-combustible, corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable