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Sigma-Aldrich 06203 Sodium hydroxide puriss., meets analytical specification of Ph. Eur., BP, NF, E524, 98-100.5%, pellets 5 kg
3.734,63 TL + VAT
4.481,55 TL
| Sigma-Aldrich 06203 Sodium hydroxide puriss |
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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: 329748217
NACRES: NA.21
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PROPERTIES
vapor density >1 (vs air)
Quality Level 200
vapor pressure <18 mmHg ( 20 °C) 3 mmHg ( 37 °C)
grade puriss.
Assay 98-100.5%
form pellets
quality meets analytical specification of Ph. Eur., BP, NF, E524
impurities
≤0.0005% total nitrogen (N)
≤0.002% heavy metals (as Pb)
≤0.5% Na2CO3
mp 318 °C (lit.)
solubility water: soluble 1260 g/L at 20 °C
density 2.13 g/cm3 at 20 °C
anion traces
chloride (Cl-): ≤20 mg/kg
phosphate (PO43-): ≤10 mg/kg
silicate (as SiO2): ≤100 mg/kg
sulfate (SO42-): ≤30 mg/kg
cation traces
Al: ≤10 mg/kg
As: ≤2 mg/kg
Ca: ≤10 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
K: ≤1000 mg/kg
Pb: ≤0.5 mg/kg
SMILES string [OH-].[Na+] InChI 1S/Na.H2O/h;1H2/q+1;/p-1
InChI key HEMHJVSKTPXQMS-UHFFFAOYSA-M
General description
Sodium hydroxide, also known as lye and caustic soda, is a strong base used universally as a neutralization agent in the chemical industry, paper making, petroleum refining, cleaning compounds, and drain cleaners.
Application
Sodium hydroxide can be used as:
A reagent in the gold-catalyzed selective oxidation of glycerol to glyceric acid.
A catalyst for the cross-dehydrogenative coupling of alcohols and hydrosilanes to synthesize silyl ethers.
A base in the transition-metal free Sonogashira-type couplings of aryl halides and alkynes to synthesize ynones in the presence of PEG as a phase-transfer agent
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