1.06469
Sodium hydroxide
pellets for analysis (max. 0.02% K) EMSURE® ACS,Reag. Ph Eur,ISO
Synonym(s):
‘Caustic soda’
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About This Item
Product Name
Sodium hydroxide, pellets for analysis (max. 0.02% K) EMSURE® ACS,Reag. Ph Eur,ISO
InChI
1S/Na.H2O/h;1H2/q+1;/p-1
SMILES string
[OH-].[Na+]
InChI key
HEMHJVSKTPXQMS-UHFFFAOYSA-M
grade
ACS reagent
agency
reag. ISO
reag. Ph. Eur.
vapor density
>1 (vs air)
vapor pressure
<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)
product line
EMSURE®
assay
99-100% (total alkilinity calculated as NaOH)
form
pellets
impurities
≤0.0003% Total nitrogen (N)
pH
>14 (20 °C, 100 g/L in H2O)
mp
318 °C (lit.)
solubility
water: 1090 g/L at 20 °C
density
2.13 g/cm3 at 20 °C
anion traces
carbonate (as Na2CO3): ≤0.5%
chloride (Cl-): ≤0.0005%
phosphate (PO43-): ≤0.0005%
silicate (as SiO2): ≤0.001%
sulfate (SO42-): ≤0.0005%
cation traces
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%
storage temp.
2-30°C
Quality Level
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Analysis Note
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 %
Application
- 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).
Other Notes
Legal Information
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
Storage Class
8A - Combustible corrosive hazardous materials
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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