n-Heptane 99% ACS

Product Overview

N-Heptane 99% ACS is a high-purity, straight-chain alkane solvent with the molecular formula C7H16. Recognized for its low reactivity and excellent solvency for nonpolar compounds, this ACS-grade solvent offers predictable performance in analytical and sample-preparation workflows. With a typical assay of 99.8% and trace constituents tightly controlled, it supports precise GC calibration, nonpolar extraction, and solvent-resolved chromatographic methods. The product is supplied with a comprehensive Certificate of Analysis (CoA) that documents assay range, water content, and elemental impurities, ensuring suitability for ACS specifications and compliant laboratory operations. Its physical properties, including low evaporation and favorable density characteristics, contribute to consistent sample handling and repeatable results in routine analytical applications.

This n-Heptane (ACS Grade) is designed for use in diverse applications where low reactivity and high purity are essential. The solvent’s low water content and minimal aldehydes and sulfurous residues help minimize interference in chromatographic analyses, while controlled metal impurity levels support sensitive instrumental measurements. By adhering to strict quality control and test methods, the product delivers reliable performance for research, testing, and industrial laboratories seeking a robust hydrocarbon solvent with well-documented specifications.

Key Properties

• Assay wt %: min 99.0, max 100.5, typical 99.8
• Chemical Formula: C₇H₁₆
• Molecular Weight: 100.20 g/mol
• Water Content (Karl Fischer): max 0.05%, typical 0.02%
• Iron (Fe) Impurity: max 0.2 ppm, typical 0.05 ppm
• Color (APHA/Hazen): max 5, typical 3
• Heavy Metals (Total ppm): max 0.5 ppm, typical 0.1 ppm
• Acidity (Meq): max 0.0003, typical 0.00015
• Aldehydes: max 10 ppm, typical 2 ppm
• Chloride (Cl): max 10 ppm, typical 2 ppm
• Nitrate (NO₃⁻): max 5 ppm, typical 1 ppm
• Ammonium (NH₄⁺): max 2 ppm, typical 0.5 ppm

Common Applications

• Application Category: Chromatography Solvent – Used as a nonpolar solvent in GC and HPLC sample preparation to dissolve nonpolar analytes with minimal reactivity and low moisture carryover.
• Analytical Calibration: Employed for calibration of GC detectors and as a reference solvent in quantitative analyses of hydrocarbon standards.
• Extraction and Reconstitution: Suitable for liquid-liquid extraction and reconstitution of nonpolar compounds prior to instrumental analysis.
• Film Coating and Cleaning: Utilized in cleaning protocols for nonpolar surfaces and as a carrier solvent for coating agents in analytical devices.
• Solvent Blends: Compatible as a component in solvent blends for dissolving hydrocarbons and preparing standard solutions with low water content.
• Residue and Impurity Testing: The low aldehyde content and controlled metals support accuracy in impurity profiling by GC-MS or GC-FID.

Safety Precautions

Handle this product in a well-ventilated area, away from heat sources, open flames, and ignition sources. Use appropriate PPE, including chemical-resistant gloves, safety goggles, and protective clothing. Store in HDPE or glass containers, keep away from strong oxidizers and acids, and protect from light to minimize degradation. Follow standard laboratory hygiene practices and consult the SDS before use to ensure compliance with safety and handling requirements.

In case of exposure, follow emergency procedures: for eyes, rinse cautiously with water for several minutes; for skin, wash with soap and water and seek medical advice if irritation occurs; for inhalation, move to fresh air and seek medical attention if symptoms persist; for ingestion, do not induce vomiting, rinse mouth, and seek medical attention. Transport to UN 1206, n-Heptane, Class 3, Packing Group II for shipment in accordance with applicable regulations.

Benefits

✔ High Purity ACS Grade – Meets ACS specifications with controlled impurities for reliable analytical performance.
✔ Low Water and Impurity Levels – Minimal water, aldehydes, and metals reduce interference in GC analyses and solvent-based calibrations.