Denatured Alcohol 190 Proof 3A

Product Overview

Denatured Alcohol 190 Proof 3A is a high-purity ethanol solution designed for rigorous industrial and laboratory use. This product, with CAS 64-17-5, is rendered unsuitable for human consumption through denaturants, preserving its exceptional solvency, rapid evaporation, and low boiling point. The solution is supplied as a clear, colorless liquid with a characteristic alcoholic odor and a molecular weight of 46.07 g/mol. Its specifications support precise solvent performance across analytical, extraction, cleaning, and formulation processes, including a typical assay wt % of 95% and a low residue on ignition, ensuring minimal carryover in sensitive workflows. The product is offered in ACS Reagent Grade compliance and USP-NF Monograph alignment, reinforcing its suitability for high-standard laboratory and industrial applications.

The denatured ethanol is widely used as a versatile solvent due to its miscibility with water and many organic solvents, its low viscosity, and favorable vapor pressure. With a refractive index around 1.361 and a flash point of 11°C, it delivers predictable performance in chromatographic mobile phases, cleaning protocols, and extraction workflows. The material is stored under controlled conditions to minimize contamination and degradation, and is compatible with HDPE or glass containers to preserve solvent integrity during handling and storage. Overall, this product provides reliable, specification-driven solvent performance for analytical chemistry, pharmaceutical extraction, manufacturing cleaning, cosmetic formulation, and broader research applications.

Key Properties

• Appearance: Clear, colorless liquid
• Chemical Formula: C₂H₆O
• Molecular Weight: 46.07 g/mol
• Boiling Point: 78-80°C
• Density (25°C): 0.789 g/mL
• Specific Gravity (20°C): 0.787 - 0.789 (typical 0.788)
• Refractive Index (20°C): 1.361
• Flash Point: 11°C (52°F)
• Vapor Pressure (20°C): 59 mmHg
• Boiling Point (Adjusted): 78.37°C
• Residue After Ignition: ≤ 0.1% (typical 0.05%)
• Color (APHA): ≤ 15 (typical 8)
• Assay wt % (GC with internal standard): 94-96% (typical 95%)
• Chloride (Cl⁻) (ppm): ≤ 2 (typical 1)
• Nitrate (NO₃⁻) (ppm): ≤ 5 (typical 2)
• Sulfate (SO₄²⁻) (ppm): ≤ 5 (typical 2)
• Ammonium (NH₄⁺) (ppm): ≤ 1 (typical 0.2)
• Arsenic (As) (ppm): ≤ 0.2 (typical 0.05)
• Heavy Metals (as Pb) (ppm): ≤ 0.2 (typical 0.05)
• Iron (Fe) (ppm): ≤ 0.2 (typical 0.05)
• Copper (Cu) (ppm): ≤ 0.2 (typical 0.05)
• Manganese (Mn) (ppm: ≤ 0.5 (typical 0.1)
• Nickel (Ni) (ppm): ≤ 0.2 (typical 0.05)
• Chromium (Cr) (ppm): ≤ 0.2 (typical 0.05)
• Sodium (Na) (ppm): ≤ 20 (typical 5)
• Potassium (K) (ppm): ≤ 20 (typical 5)
• Calcium (Ca) (ppm): ≤ 20 (typical 5)
• Magnesium (Mg) (ppm): ≤ 20 (typical 5)
• Chlorine (Cl) (ppm): —
• Aluminum (Al) (ppm): ≤ 0.5 (typical 0.1)
• Phosphate (PO₄³⁻) (ppm): ≤ 5 (typical 2)
• Water Content (H₂O, Karl Fischer): ≤ 0.5% (typical 0.2%)
• Acidity (Meq NaOH): ≤ 0.5 (typical 0.2)
• ACCEPTED STANDARDS: ACS Reagent Grade; USP-NF Monograph compliant
• Color Impurities: Color ≤ 15 APHA (typical 8)

Common Applications

• HPLC Mobile Phase: Commonly used as a mobile phase component in reversed-phase chromatography for separating organic compounds.
• Solvent for Extraction: Utilized in the extraction of active pharmaceutical ingredients from plant materials.
• Cleaning Agent: Effective for cleaning and degreasing surfaces in manufacturing environments.
• Cosmetic Formulation: Serves as a solvent in the formulation of various cosmetic products.
• Laboratory Reagent: Used as a reagent in various chemical reactions and analyses.

Safety Precautions

Handle and store Denatured Alcohol 190 Proof 3A in a cool, dry area away from heat sources, open flames, and incompatibles. Use containers of HDPE or glass and ensure adequate ventilation to minimize inhalation exposure. Wear appropriate PPE including chemical-resistant gloves, goggles, and protective clothing when handling to reduce dermal and ocular contact risks. Keep away from ignition sources and ensure proper grounding during transfer to prevent static discharge. Maintain secure storage to prevent contamination and monitor for signs of degradation or container leakage.

In case of exposure, follow emergency procedures: for eyes or skin contact rinse with plenty of water; for inhalation move to fresh air and seek medical attention if symptoms persist; for ingestion, do not induce vomiting and seek medical care immediately. This product is flammable; keep away from heat, sparks, open flames, and hot surfaces. Transport and handle according to UN 1170 Ethanol, Class 3, Packing Group II guidelines. Refer to the SDS for comprehensive hazard statements and first-aid instructions.

Benefits

✔ High-purity ethanol with controlled denaturant formulation – consistent solvency, low residue, and reliable performance across analytical and industrial processes.
✔ ACS Reagent Grade and USP-NF compliant – aligns with stringent laboratory quality standards and regulatory expectations.