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Separating Funnel, Conical/Squibb Shape, with Rotaflow stopcock

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Separating Funnel, Conical Shape, with Glass Stopcock

Separating Funnel, Conical/Squibb Shape, with Rotaflow stopcock

Separating Funnel, with screw type Rotaflow stopcock & Polyethylene/hollow glass stopper, Conical/Squibb shape.

  • Compliance with ISO 4800 Standards
  • Provided with PE Stopper
  • With screw type Rotaflow stopcock

Note: Graduated separating funnel can also be offered.

SKU: 11301 Categories: , ,

Description

Catalogue No.Capacity (ml)
11301/0150
11301/02100
11301/03250
11301/04500
11301/051000
11301/062000

The MEDILAB Conical/Squibb Shape Separating Funnel with Rotaflow stopcock is a precision extraction instrument designed for clean, efficient separation of immiscible liquid phases. Its conical geometry provides sharper layer division, making it ideal for solvent extraction, purification, and analytical workflows. Engineered for reliability and heavy routine use, it is essential equipment in chemical, pharmaceutical, academic, and industrial laboratories worldwide.

 Key Features

  • Conical/Squibb shape ensures rapid and accurate phase separation.
  • The Rotaflow PTFE stopcock provides smooth, leak-free, and chemically resistant operation.
  • Manufactured from premium Borosilicate Glass 3.3, offering excellent thermal and chemical durability.
  • Complies with ISO 4800 standards for international laboratory compatibility.
  • Supplied with a PE or hollow-glass stopper for secure closure and safe reagent handling.
  • High transparency for clear visibility of phase boundaries.
  • Uniform wall thickness enhances strength and longevity in demanding lab environments.
  • Optional graduations are available for users requiring calibrated volume markings.

Material Specifications

  • Material: Borosilicate Glass 3.3

Thermal Performance:

  • Low coefficient of thermal expansion (~3.3 × 10⁻⁶ /°C)
  • High resistance to thermal shock

Chemical Resistance:

  • Inert to most acids, alkalis, and organic solvents
  • PTFE stopcock provides additional resistance to aggressive reagents

Mechanical Properties: Strong, rigid construction suitable for repeated laboratory use

  • Standards: Conforms to ISO 4800; compatible with DIN/ASTM-equivalent norms

 Technical Specifications

  • Available Capacities: 50 mL, 100 mL, 125 mL, 250 mL, 500 mL, 1000 mL, and larger sizes upon request.
  • Design: Conical/Squibb shape with a long stem for controlled drainage.
  • Stopcock: Screw-type Rotaflow stopcock with PTFE key.
  • Tolerance: Volumetric tolerances aligned with international glassware standards.
  • Graduation (Optional): Permanent enamel graduations on request.

Packaging:

  • Individually packed in shock-absorbing, export-grade packaging.
  • Bulk and OEM packaging available.

Included Accessories:

  • Rotaflow PTFE stopcock assembly
  • Polyethylene or hollow-glass stopper

 Handling & Precautions

Safe Use:

  • Ensure the stopcock is fully closed before filling.
  • Secure the funnel during shaking to prevent slippage.

Cleaning:

  • Clean with mild laboratory detergents or compatible solvents.
  • Avoid abrasive brushes that can scratch the surface.

Autoclaving & Temperature Limits:

  • Funnel and PTFE stopcock are autoclavable.
  • Remove PE stopper before autoclaving.
  • Avoid direct flame or sudden temperature changes.

Do’s & Don’ts:

  • Do: Check stopcock movement before use.
  • Do: Rinse immediately after handling corrosive substances.
  • Don’t: Apply excessive force to the screw stopcock.
  • Don’t: Use with hydrofluoric acid.

Best Practices:

  • Store in a vertical position to protect the stem.
  • Keep stopcock components clean and lubricated (PTFE-safe lubricant if needed).

Applications

  • Chemical Laboratories: Solvent extraction, purification, liquid-liquid separations.
  • Pharmaceutical & Biotech: Sample preparation, QA/QC workflows, separation of organic/aqueous phases.
  • Academic & Research Institutions: Core equipment for organic chemistry, analytical chemistry, and teaching labs.
  • Environmental & Analytical Testing: Extraction of pollutants, residue analysis, and chromatography sample prep.
  • Essential for routine separation tasks, preparative chemistry, and analytical workflows requiring high accuracy and repeatability.

Why Choose MEDILAB

  • 35+ years of expertise in scientific glassware manufacturing.
  • Exporting to over 40 countries, trusted by global distributors and laboratories.
  • High-precision, export-quality production with strict QC checks.
  • OEM & private labelling services are available for distributors and brand owners.
  • Consistent quality, durability, and reliability across all product batches.
  • Robust packaging and an efficient global supply chain ensure safe delivery and uninterrupted availability.

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