Description
Specifications Table
Product Name – Ammonium acetate AnalaR NORMAPUR® ACS reagent, Reag. Ph. Eur.
Quantity/Pack Size – 500 g
Form – Crystalline powder
Grade – ACS reagent, Reag. Ph. Eur.
Application – Buffer preparation, protein crystallization, HPLC, analytical chemistry
Product Overview
Ammonium acetate AnalaR NORMAPUR® is a high-purity ACS reagent-grade chemical designed for demanding laboratory applications where precision and consistency are critical. This crystalline powder offers exceptional solubility in water and polar solvents, making it a versatile choice for buffer solutions, protein crystallization, and chromatographic techniques. Its compliance with ACS (American Chemical Society) and Ph. Eur. (European Pharmacopoeia) standards ensures minimal impurities, including low heavy metal content, which is essential for sensitive analytical procedures. The reagent’s stable pH buffering capacity in the 4.5–6.5 range makes it particularly useful in biochemical assays and molecular biology protocols. With a molecular weight of 77.08 g/mol and a melting point of 114°C, this ammonium acetate variant provides reliable performance in both aqueous and organic systems. Its hygroscopic nature requires proper storage in a cool, dry environment to maintain integrity. Whether used in qualitative analysis, synthesis, or as a mobile phase modifier in HPLC, this reagent delivers reproducible results, reducing variability in experimental outcomes. The AnalaR NORMAPUR® certification further guarantees batch-to-batch consistency, meeting the stringent requirements of research and quality control laboratories.
FAQs
1. What is the shelf life of Ammonium acetate AnalaR NORMAPUR® when stored under ideal conditions?
The reagent typically maintains its specified purity for 24–36 months when stored in a tightly sealed container at room temperature (15–25°C) and protected from moisture. Always check the certificate of analysis for the exact expiration date.
2. Can this ammonium acetate be used for mass spectrometry applications?
Yes, its high purity and low impurity profile make it suitable for LC-MS and other mass spectrometry applications where volatile buffers are required. However, ensure compatibility with your specific instrument and protocol, as residual ammonium ions may affect certain analyses.
3. How does this product compare to ammonium acetate of technical or laboratory grade?
This AnalaR NORMAPUR® ACS-grade variant undergoes stricter quality control, with guaranteed lower levels of heavy metals (e.g., Fe, Pb, As) and other contaminants compared to technical or laboratory grades. It is specifically purified to meet pharmacopeial standards, ensuring reliability in quantitative applications.
4. What precautions should be taken when dissolving ammonium acetate in solvents?
Ammonium acetate is highly soluble in water (148 g/100 mL at 20°C) but generates heat during dissolution. Add the powder gradually to the solvent while stirring to avoid localized overheating. For organic solvents like methanol or ethanol, solubility is lower (~5–10 g/100 mL), so warming the solution may be necessary.
5. Is this product compatible with plastic labware, or should glass containers be used?
While ammonium acetate solutions are generally compatible with common lab plastics like PP or HDPE, prolonged storage in plastic may lead to leaching of additives. For long-term storage or sensitive applications, glass containers with PTFE-lined caps are recommended to prevent contamination.
