72064

Sodium hydroxide solution

49-51% in water, eluent for IC

• Linear Formula: NaOH
• CAS Number: 1310-73-2
• Molecular Weight: 40.00
• NACRES: NB.21
• PubChem Substance ID: 329763734
• UNSPSC Code: 12352316
• MDL number: MFCD00003548
• Concentration: 49-51% in water
• Form: liquid

Properties

• vapor pressure: 3 mmHg ( 37 °C)
• Quality Level: 100
• form: liquid
• concentration: 49-51% in water
• technique(s): ion chromatography: suitable
• impurities: ≤0.0005% total nitrogen (N), ≤0.01% ammonium hydroxide precipitate
• pH: 14.0
• solubility: water: soluble (completely miscible)
• anion traces: carbonate (as Na₂CO₃): ≤1000 mg/kg, chloride (Cl^-): ≤100 mg/kg, phosphate (PO₄^3-): ≤5 mg/kg, silicate (as SiO₂): ≤10 mg/kg, sulfate (SO₄^2-): ≤10 mg/kg
• cation traces: Al: ≤5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤100 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Ni: ≤5 mg/kg, Pb: ≤10 mg/kg, Zn: ≤5 mg/kg
• SMILES string: [OH-].[Na+]
• InChI: 1S/Na.H2O/h;1H2/q+1;/p-1
• InChI key: HEMHJVSKTPXQMS-UHFFFAOYSA-M

Description

General description

Sodium hydroxide solution is a strong alkaline solution which may be suitable to make dyes, drugs, cellophane, rayon and bleaches. It may also be suitable for petrochemical industry to remove impurities. This solution needs to be handled carefully, close proximity or ingestion could cause blindness, permanent scarring and sometimes can be fatal.

Application

Sodium hydroxide solution may be used to characterize the morphology of the produced colloids using UV-Visible spectroscopy and transmission electron microscopy. It may be used to measure specific heats using calorimeter. It may also be used to study the first stages of silver oxidation using voltammetry and ellipsometry.

Metrohm IC application note AN-P-055:Lactose residues in "lactose-free" milk.

Other Notes

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Safety Information

• pictograms: GHS05
• signalword: Danger
• hcodes: H290,H314
• pcodes: P234 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• Hazard Classifications: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Storage Class: 8B - Non-combustible corrosive hazardous materials
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter