Quinhydrone

Product Description

Quinhydrone is a 1:1 molecular complex of quinone and hydroquinone (C₆H₄O₂·C₆H₆O₂), recognized for its distinct redox properties. It appears as dark green to black crystalline needles and is widely used as a redox indicator, electrode reference material, and analytical reagent in electrochemistry and pH measurement.

In laboratory applications, Quinhydrone is primarily employed to establish quinhydrone electrodes for determining the hydrogen ion concentration (pH) in aqueous solutions. It is also used in oxidation-reduction titrations, potential measurements, and educational demonstrations involving redox equilibria.

Key Features

• Chemical Name: Quinhydrone
• Chemical Formula: C₁₂H₁₀O₄
• CAS Number: 106-34-3
• Molecular Weight: 218.21 g/mol
• Appearance: Dark green to black crystalline powder or needles
• Odor: Odorless
• Melting Point: 171–173 °C (decomposes)
• Solubility: Slightly soluble in water; soluble in alcohol, ether, and acetone
• Purity: ≥99% (Analytical / Reagent Grade)
• Stability: Stable under dry, cool conditions; decomposes slowly in light or moisture
• pH Sensitivity: Used for redox potential and pH electrode calibration

Applications

Analytical Chemistry

• Used as a redox indicator in oxidation-reduction titrations.
• Essential for preparing quinhydrone electrodes to measure pH values accurately.
• Applied in potential measurements and electrochemical studies to determine oxidation-reduction potentials.

Laboratory & Research Use

• Useful in electrochemical calibration and redox potential experiments.
• Applied in environmental, biochemical, and industrial analyses for determining acidity and redox characteristics of solutions.

Educational Demonstrations

• Ideal for teaching redox reactions, electrochemical equilibria, and pH measurement principles in academic laboratories.

Safety & Handling

• Hazard: Harmful if swallowed; may cause skin, eye, or respiratory irritation.
• Precautions: Handle with care under a fume hood. Use gloves, safety goggles, and a lab coat. Avoid direct contact and inhalation.
• Storage: Store in a cool, dry, and dark place in tightly sealed containers. Protect from light, moisture, and strong oxidizing agents.
• Emergency: In case of contact, rinse immediately with plenty of water and seek medical advice if irritation occurs.

Why Choose Quinhydrone?

• High-purity analytical and redox reagent.
• Reliable for pH electrode calibration and redox titration applications.
• Stable, consistent, and easy to handle for both educational and research use.
• Professionally tested and packaged for maximum quality assurance.

Price in Bangladesh

Available in analytical-grade packaging (5 g, 10 g, 25 g, 50 g) at competitive prices.
Discounts available for educational institutions, research laboratories, and bulk purchases.

Where to Buy

Quinhydrone is available through authorized laboratory chemical suppliers and distributors across Bangladesh.

Why Buy from M/S Bright Scientific Co.?

• Trusted Supplier: Serving universities, industrial labs, and research organizations.
• Quality Assurance: Verified purity and analytical-grade specifications.
• Affordable Pricing: Competitive rates for both retail and bulk orders.
• Prompt Delivery: Safe and timely nationwide distribution.

Contact Information
M/S Bright Scientific Co.
📞 Phone: 01711285976