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Separating Funnel, Pear (Squibb) Shape – Borosilicate Glass 3.3 with PTFE Stopcock & Plastic Stopper
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Specifications:
| Application | Analytical Chemistry |
| Material | Borosilicate glass |
| Storage Temperature | Ambient |
| Product Type | Laboratory Glassware |
| Product Grade | Analytical grade |
The Separatory Funnel, Pear (Squibb) Shape made from Borosilicate Glass 3.3 is a high-performance laboratory instrument designed for efficient liquid-liquid extraction and phase separation. Featuring a PTFE stopcock for precise flow control and a ground glass stopper for secure sealing, this funnel ensures safe and accurate handling of immiscible liquids.
The pear-shaped design enhances rapid and clean phase separation, making it ideal for organic chemistry, environmental analysis, and pharmaceutical workflows.
Key Features & Benefits
High-Quality Borosilicate Glass 3.3
- Excellent resistance to thermal shock and chemical corrosion
- Suitable for use with organic solvents, acids, and bases
- Durable and long-lasting for routine laboratory use
Pear (Squibb) Shape Design
- Promotes fast and efficient phase separation
- Smooth internal surface minimizes emulsion retention
- Ideal for extraction workflows requiring quick layer formation
PTFE Stopcock (Key)
- Provides precise, smooth, and leak-free flow control
- Highly resistant to aggressive chemicals and solvents
- Low friction and maintenance compared to glass stopcocks
Ground Glass Stopper
- Ensures secure sealing during mixing and shaking
- Minimizes evaporation and contamination
Clear Glass Construction
- Allows clear visualization of phase boundaries
- Improves accuracy during separation and extraction
Applications
- Liquid-Liquid Extraction
- Solvent Partitioning
- Organic Chemistry Synthesis
- Pharmaceutical Analysis & QA/QC
- Environmental Testing & Water Analysis
- Academic & Research Laboratories
Technical Specifications
| Feature | Details |
|---|---|
| Material | Borosilicate Glass 3.3 |
| Shape | Pear (Squibb) |
| Stopcock | PTFE Key |
| Stopper | Ground Glass |
| Chemical Resistance | Excellent |
| Transparency | Clear |
| Temperature Resistance | High |
| Compliance | Laboratory glassware standards |
Product Variants
| Cat. No. | Capacity (mL) | Stem Size (mm) | Body O.D. (mm) | Ground Joint | Length (mm) |
|---|---|---|---|---|---|
| 8543-60 | 60 | 8 × 60 | 50 | 14# | 205 |
| 8543-125 | 125 | 8 × 70 | 68 | 19# | 260 |
| 8543-250 | 250 | 9 × 80 | 82 | 19# | 310 |
| 8543-500 | 500 | 10 × 90 | 99 | 24# | 355 |
| 8543-1000 | 1000 | 11 × 100 | 126 | 29# | 430 |
| 8543-2000 | 2000 | 12 × 120 | 153 | 34# | 520 |
Comparison: Pear (Squibb) vs Cylindrical Separatory Funnel
| Feature | Pear (Squibb) Shape | Cylindrical Shape |
|---|---|---|
| Phase Separation | Faster | More controlled |
| Shape | Bulbous bottom | Straight body |
| Volume Measurement | Limited | Graduated (more precise) |
| Application | General extraction | Analytical precision workflows |
Key Advantages
- Efficient rapid phase separation design
- Durable borosilicate glass for chemical resistance
- Reliable PTFE stopcock for smooth operation
- Secure glass stopper for safe mixing and handling
- Wide capacity range for flexible laboratory applications
The Borosilicate Glass Pear-Shaped Separatory Funnel with PTFE Stopcock is an essential laboratory tool for efficient and reliable liquid-liquid extraction. Its optimized design, chemical durability, and precise flow control make it ideal for analytical, research, and industrial laboratory environments.
- Capacity: 60 mL 125 mL 250 mL 500 mL 1000 mL 2000 mL