Isopropyl Alcohol 91%- USP Grade

Product Overview

Isopropyl Alcohol 91%- USP Grade (Isopropanol, 2-Propanol) is a colorless, highly flammable liquid with a characteristic alcohol odor that meets USP specifications. This USP grade IPA is formulated to deliver consistent performance as a versatile solvent across analytical, pharmaceutical, and industrial processes. With a typical assay of 91.9 wt% and a low aldehyde content, it provides reliable purity for demanding applications such as chromatography, extraction, and surface cleaning. The product is supplied in_material suitable for compliance with USP-NF monographs and is designed to maintain stability when stored in appropriate containers under recommended conditions.

Its low acidity, controlled water content, and trace metal profile support high-precision analytical work and reproducible process outcomes. By combining fast evaporation, effective solvency for a wide range of organics, and compatibility with common laboratory and manufacturing equipment, Isopropyl Alcohol 91%- USP Grade serves as a dependable primary solvent and cleaning agent in regulated environments. The product is supplied with strict lot-to-lot QC data and traceability to validated test methods, aligning with industry standards for quality, safety, and performance.

Key Properties

• Chemical Formula: C₃H₈O
• CAS: 67-63-0
• Appearance: Clear, colorless liquid
• Odor: Characteristic alcohol odor
• Boiling Point: 82.5°C
• Specific Gravity (25°C): 0.786 (min 0.784 – max 0.792)
• Density (25°C): 0.786 g/mL
• Molecular Weight: 60.10 g/mol
• Flash Point: 11°C
• Vapor Pressure (25°C): 60 mmHg
• Solubility: Miscible with water and most organic solvents
• Water Content: Max 0.2% (typical 0.05%)
• Aldehydes (as ppm): Max 10 (typical 2)

Common Applications

• HPLC Mobile Phase: Analytical Chemistry – Used as a mobile phase component in reversed-phase chromatography for separating organic compounds with high reproducibility.
• Spectroscopy Solvent: Research Laboratory – Serves as a baseline solvent in UV-Vis spectroscopy due to a low UV cutoff wavelength.
• Extraction Medium: Pharmaceutical Manufacturing – Used in liquid-liquid extraction processes for isolating pharmaceutical intermediates.
• Cleaning Agent: Industrial – Efficient solvent for cleaning electronic components and laboratory equipment.
• Solvent for Paints and Coatings: Manufacturing – Forms a solvent in formulations to improve application properties and drying behavior.

Safety Precautions

Handle under well-ventilated conditions, away from ignition sources. Store in cool, ventilated areas in compatibility-approved containers (HDPE or glass). Use appropriate PPE including chemical-resistant gloves, goggles, and flame-resistant lab attire. Ensure containers are tightly closed when not in use to minimize evaporation and exposure risk. Follow applicable OSHA and local regulations during handling and storage.

Keep away from heat and open flames due to its highly flammable nature (DANGER, Flammable Liquid 2). In case of contact with eyes or skin, rinse immediately with copious water; if irritation persists, seek medical attention. Inhalation of vapors can cause dizziness or drowsiness; move to fresh air and seek medical advice if symptoms occur. If ingested, do not induce vomiting; seek medical attention promptly. Refer to the Safety Data Sheet for comprehensive emergency procedures and first-aid guidance.

Benefits

✔ Reliable USP-grade purity – Meets USP-NF monograph requirements with low aldehydes and minimal water content for sensitive analytical and pharmaceutical workflows.
✔ Broad compatibility – Miscible with water and most organic solvents, enabling versatile use across chromatography, extraction, and cleaning processes.