1.08849

Zinc oxide

for analysis EMSURE^® ACS,Reag. Ph Eur

• Synonym(s): Zinc oxide
• Empirical Formula (Hill Notation): OZn
• CAS Number: 1314-13-2
• Molecular Weight: 81.39
• MDL number: MFCD00011300
• UNSPSC Code: 12352303
• EC Index Number: 215-222-5
• NACRES: NA.21

Properties

• grade: ACS reagent
• Quality Level: 300
• Agency: reag. Ph. Eur.
• product line: EMSURE^®
• Assay: ≥99.0% (complexometric); 99.0-100.5% ZnO basis (complexometric)
• form: solid
• potency: >5000 mg/kg LD₅₀, oral (Rat)
• impurities: ≤0.001% Substances reducing potassium permanganate (as O); ≤0.01% Substances insoluble in diluted sulfuric acid
• loss: ≤1.0% loss on ignition, 500 °C
• pH: 7 (20 °C, 50 g/L in H₂O, slurry)
• mp: 1975 °C
• solubility: insoluble 0.0016 g/L
• density: 5.61 g/cm³ at 20 °C
• bulk density: 200‑700 kg/m³
• anion traces: chloride (Cl^-): ≤0.001%; nitrate (NO₃^-): ≤0.003%; sulfur compounds (as SO₄^2-): ≤0.01%
• cation traces: As: ≤0.0001%; Ca: ≤0.001%; Cd: ≤0.0005%; Cu: ≤0.0005%; Fe: ≤0.0005%; K: ≤0.01%; Mg: ≤0.005%; Mn: ≤0.0005%; N: ≤0.0005%; Na: ≤0.001%; Pb: ≤0.002%; excess alkali:, passes test
• storage temp.: 2-30°C
• InChI: 1S/O.Zn
• InChI key: XLOMVQKBTHCTTD-UHFFFAOYSA-N

Description

Application

• Triethyl phosphate (TEP) as a green solvent for solid-phase peptide synthesis (SPPS).: This study explores the use of triethyl phosphate as an environmentally friendly solvent for SPPS, highlighting its efficacy in improving peptide synthesis while minimizing environmental impact. The research demonstrates TEP′s potential to replace traditional solvents, thereby promoting greener chemistry practices in peptide production (Nandhini et al., 2024).


• Utilizing Triethyl Phosphate to Increase the Solubility of Lithium Nitrate for Improved Silicon Anode Performance.: This study focuses on the use of triethyl phosphate to enhance the solubility of lithium nitrate in battery electrolytes, leading to better performance and stability of silicon anodes. The findings suggest significant improvements in battery life and efficiency (Rynearson & Rynearson, 2022).

Analysis Note

Assay (complexometric, ZnO calculated on ignited substance): 99.0 - 100.5 %
Assay (complexometric, ZnO): ≥ 99.0 %
Identity: passes test
Carbonate and color of solution: passes test
Substances insoluble in diluted sulfuric acid: ≤ 0.01 %
Free Alkali: passes test
Chloride (Cl): ≤ 0.001 %
Nitrate (NO₃): ≤ 0.003 %
Sulfur compounds (as SO₄): ≤ 0.01 %
Total nitrogen (N): ≤ 0.0005 %
As (Arsenic): ≤ 0.0001 %
Ca (Calcium): ≤ 0.001 %
Cd (Cadmium): ≤ 0.0005 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.01 %
Mg (Magnesium): ≤ 0.005 %
Mn (Manganese): ≤ 0.0005 %
Na (Sodium): ≤ 0.001 %
Pb (Lead): ≤ 0.002 %
Substances reducing potassium permanganate (as O): ≤ 0.001 %
Loss on ignition (500 °C): ≤ 1.0 %

Legal Information

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

Safety Information

• Pictograms: GHS09
• Signal Word: Warning
• Hazard Statements: H410
• Precautionary Statements: P273 - P391 - P501
• Hazard Classifications: Aquatic Acute 1 - Aquatic Chronic 1
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 2
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable