Description

Specifications Table

Product Name – N,N-Dimethylacetamide, 99+%, for spectroscopy
Quantity/Pack Size – 250ML, 1LT, 2.5LT
Form – Liquid
Grade – Spectroscopy (99%+ purity)
Application – Solvent for UV/IR/NMR spectroscopy, polymer synthesis

Product Overview

N,N-Dimethylacetamide (DMAc) with 99%+ purity is a high-performance polar aprotic solvent specifically refined for spectroscopy applications. Its exceptional transparency across UV, IR, and NMR ranges ensures minimal interference in analytical measurements, making it a preferred choice for researchers requiring precise spectral data. The solvent’s low moisture content (<0.02%) and negligible impurity profile prevent artifact formation, while its high boiling point (166°C) and thermal stability allow for prolonged experimental use without degradation. DMAc’s strong solvating power for polar and nonpolar compounds enhances sample dissolution, particularly in polymer chemistry and organic synthesis. The spectroscopy-grade formulation undergoes rigorous distillation and filtration to eliminate trace metals, particulate matter, and volatile contaminants, guaranteeing consistent batch-to-batch reliability. Its hygroscopic nature necessitates airtight storage to maintain purity, and the amber glass packaging provided with this product further protects against light-induced degradation.

FAQs

1. What is the maximum wavelength range where this DMAc remains optically transparent?

This grade of N,N-Dimethylacetamide exhibits >95% transmittance from 240 nm to 2.5 µm, covering UV-Vis and mid-IR regions without significant absorption peaks.

2. Can this solvent be used with fluorinated polymers like PVDF?

Yes, it effectively dissolves fluoropolymers at elevated temperatures (60–80°C), though prolonged exposure may require inert atmosphere to prevent oxidative side reactions.

3. How does the 99%+ purity compare to standard reagent-grade DMAc?

Spectroscopy-grade DMAc undergoes additional purification steps to remove UV-absorbing impurities (e.g., amines, aldehydes) and reduce water content below 200 ppm, unlike reagent-grade which may contain up to 0.5% water.

4. What precautions are needed when storing opened bottles?

Store under nitrogen or argon gas in a desiccator to prevent moisture absorption, and use PTFE-lined caps to avoid plasticizer leaching from standard bottle seals.

5. Is this DMAc compatible with lithium-ion battery electrolyte formulations?

While it can dissolve lithium salts, its high viscosity and residual water content may require further drying (e.g., molecular sieves) for electrolyte applications to avoid side reactions with lithium.