1.06469

Sodium hydroxide

pellets for analysis (max. 0.02% K) EMSURE^® ACS,Reag. Ph Eur,ISO

• Synonim(y): ‘Caustic soda’
• Wzór liniowy: NaOH
• Numer CAS: 1310-73-2
• Masa cząsteczkowa: 40.00
• Numer MDL: MFCD00003548
• Kod UNSPSC: 12352305
• Numer indeksu EC: 215-185-5
• NACRES: NA.21

Właściwości

• klasa czystości: ACS reagent
• Poziom jakości: 300
• agency: reag. ISO; reag. Ph. Eur.
• gęstość pary: >1 (vs air)
• ciśnienie pary: <18 mmHg ( 20 °C); 3 mmHg ( 37 °C)
• linia produktu: EMSURE^®
• Próba: 99-100% (total alkilinity calculated as NaOH)
• Postać: pellets
• zanieczyszczenia: ≤0.0003% Total nitrogen (N)
• pH: >14 (20 °C, 100 g/L in H₂O)
• mp: 318 °C (lit.)
• rozpuszczalność: water: 1090 g/L at 20 °C
• gęstość: 2.13 g/cm³ at 20 °C
• ślady anionów: carbonate (as Na₂CO₃): ≤0.5%; chloride (Cl^-): ≤0.0005%; phosphate (PO₄^3-): ≤0.0005%; silicate (as SiO₂): ≤0.001%; sulfate (SO₄^2-): ≤0.0005%
• ślady kationów: Al: ≤0.0005%; As: ≤0.0001%; Ca: ≤0.0005%; Cu: ≤0.0002%; Fe: ≤0.0005%; Hg: ≤0.00001%; K: ≤0.020%; Mg: ≤0.0005%; Ni: ≤0.0005%; Pb: ≤0.0005%; Zn: ≤0.001%; heavy metals (as Ag): ≤0.0005%; heavy metals (as Pb): ≤0.0005%
• temp. przechowywania: 2-30°C
• ciąg SMILES: [OH-].[Na+]
• InChI: 1S/Na.H2O/h;1H2/q+1;/p-1
• Klucz InChI: HEMHJVSKTPXQMS-UHFFFAOYSA-M

Opis

Zastosowanie

• Biosorbent derived from coffee husk for efficient removal of toxic heavy metals from wastewater.: Researchers developed a biosorbent from coffee husk to remove heavy metals from wastewater. Sodium hydroxide plays a critical role in the chemical activation of the coffee husk, enhancing its adsorption capacity (Quyen et al., 2021).


• Development of Advanced Chemometric-Assisted Spectrophotometric Methods for the Determination of Cromolyn Sodium and Its Alkaline Degradation Products.: This paper presents advanced spectrophotometric methods for analyzing cromolyn sodium and its degradation products. Sodium hydroxide is used to induce the degradation of cromolyn sodium, allowing for the study of its breakdown products (El Zahar et al., 2020).


• High resolution and high throughput analytical methods for d-tagatose and process related impurities using capillary electrophoresis.: The study develops capillary electrophoresis methods for analyzing d-tagatose and its impurities. Sodium hydroxide is employed as an electrolyte to enhance the separation and resolution in the electrophoresis process (Surapureddi et al., 2020).


• Phosphorus in recycling fertilizers - analytical challenges.: This research addresses the analytical challenges in determining phosphorus in recycling fertilizers. Sodium hydroxide is used to adjust the pH of samples, which is crucial for accurate phosphorus quantification (Krüger and Adam, 2017).

Powiązanie

Replaces: SX0590; SX0590-20

Komentarz do analizy

Assay (acidimetric,NaOH): 99 - 100 %
Assay (total alkalinity calc. as NaOH): 99 - 100 %
Identity: passes test
Appearance of solution: passes test
Carbonate (as Na₂CO₃): ≤ 0.5 %
Chloride (Cl): ≤ 0.0005 %
Phosphate (PO₄): ≤ 0.0005 %
Silicate (SiO₂): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.0005 %
Total nitrogen (N): ≤ 0.0003 %
Heavy metals (as Ag): ≤ 0.0005 %
Heavy metals (as Pb): ≤ 0.0005 %
Al (Aluminium): ≤ 0.0005 %
As (Arsenic): ≤ 0.0001 %
Ca (Calcium): ≤ 0.0005 %
Cu (Copper): ≤ 0.0002 %
Fe (Iron): ≤ 0.0005 %
Hg (Mercury): ≤ 0.00001 %
K (Potassium): ≤ 0.020 %
Mg (Magnesium): ≤ 0.0005 %
Ni (Nickel): ≤ 0.0005 %
Pb (Lead): ≤ 0.0005 %
Zn (Zinc): ≤ 0.001 %

Informacje prawne

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

This page may contain text that has been machine translated.

Informacja o środkach bezpieczeństwa

• Piktogramy: GHS05
• Hasło ostrzegawcze: Danger
• Zwroty wskazujące rodzaj zagrożenia: H290,H314
• Zwroty wskazujące środki ostrożności: P234 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Klasyfikacja zagrożeń: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Kod klasy składowania: 8A - Combustible corrosive hazardous materials
• Klasa zagrożenia wodnego (WGK): WGK 1
• Temperatura zapłonu (°F): Not applicable
• Temperatura zapłonu (°C): Not applicable