Dean And Stark Apparatus

About Dean And Stark Apparatus

The Dean and Stark Apparatus is a specialized laboratory glassware setup used for the determination of water content in various substances through azeotropic distillation. It is widely employed in chemical, petroleum, and food industries for accurate moisture analysis, particularly in oils, bitumen, and organic compounds.

The apparatus works by separating water from a sample using an immiscible solvent, typically through reflux distillation. The collected water is then measured in a calibrated receiver, providing precise and reliable results.

Key Features:

• Accurate moisture determination by azeotropic distillation
• Made from high-quality borosilicate glass for durability and thermal resistance
• Clear and precise calibration markings
• Resistant to chemicals and high temperatures
• Easy assembly and operation
• Available in different capacities and configurations

Applications:

• Petroleum and oil testing laboratories
• Chemical and pharmaceutical industries
• Food processing and quality control
• Research and educational laboratories
• Bitumen and asphalt testing

Technical Specifications (Typical):

• Material: Borosilicate Glass
• Capacity: 5 ml, 10 ml, 25 ml receiver (customizable)
• Joint Size: Standard ground glass joints
• Method: Azeotropic distillation
• Compatibility: Suitable for organic solvents like toluene or xylene

Packaging Details:
Carefully packed in protective materials to prevent breakage during transit.

Usage Instructions:

1. Assemble the apparatus with flask, condenser, and receiver.
2. Add sample and solvent into the distillation flask.
3. Heat the mixture to initiate distillation.
4. Collect and measure separated water in the calibrated receiver.

Safety & Maintenance:

• Handle glassware carefully to avoid breakage
• Use in a well-ventilated area
• Clean thoroughly after each use
• Avoid sudden temperature changes to prevent cracking

Reliable Water Content Determination

Accurately measure water content in oils, solvents, and emulsions using the Dean and Stark Apparatus. Engineered for laboratory chemical analysis, its borosilicate glass construction and solvent-resistant features ensure precise and repeatable results, essential for quality and compliance in testing protocols.


Flexible, Manual Operation for Every Lab

The apparatus requires no electricity and is designed for ease of use on laboratory workbenches. Its versatility is demonstrated by compatibility with a range of flask volumes and receiver tube capacities. Standard joint sizes and leakproof design guarantee secure connections and straightforward sample handling.


Built to Last: Chemical and Thermal Durability

With high resistance to corrosion and temperatures up to 250C, this equipment supports rigorous laboratory processes. The clear graduations and chemical-resistant materials provide durability, safety, and minimal maintenance, making it a reliable tool for frequent laboratory use.