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Borosilicate Glass 3.3 Claisen Adapter, Two-Neck, Standard Ground Joints
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Specifications:
| Application | Analytical Chemistry |
| Material | Borosilicate glass |
| Storage Temperature | Ambient |
| Product Type | Glass Joints & Adapters |
| Product Grade | Analytical grade |
The Claisen Adapter, Two-Neck made from Borosilicate Glass 3.3 is a critical laboratory glassware component designed for branching connections in distillation, reflux, and reaction systems. Featuring a Y-shaped configuration with two upper ground glass joints and one lower joint, this adapter enables simultaneous integration of multiple apparatus components such as condensers, thermometers, or addition funnels.
Engineered for precision and durability, the Claisen adapter ensures secure, leak-free connections, making it indispensable in organic chemistry, analytical workflows, and multi-component reaction setups.
Key Features & Benefits
Y-Shaped Dual Neck Design
- Two upper necks allow simultaneous connections
- Enables addition of thermometers, condensers, or reagent funnels
- Ideal for branching distillation and reflux systems
Borosilicate Glass 3.3 Construction
- Excellent resistance to thermal shock and chemical corrosion
- Suitable for high-temperature reactions and solvent exposure
- Durable for repeated laboratory use
Standard Ground Glass Joints
- Precision-ground joints ensure tight, leak-proof sealing
- Compatible with standard laboratory glassware systems
- Available in multiple joint size combinations
Enhanced Workflow Flexibility
- Allows parallel operations such as heating and reagent addition
- Improves system efficiency in complex laboratory setups
Clear Glass Visibility
- Enables monitoring of vapor flow and reaction progress
- Supports safe and controlled experimental conditions
Applications
- Distillation and Fractional Distillation Systems
- Reflux Reaction Setups
- Simultaneous Reagent Addition and Heating
- Thermometer Integration in Reaction Systems
- Organic Chemistry and Analytical Laboratories
- Research and Educational Laboratories
Technical Specifications
| Feature | Details |
|---|---|
| Material | Borosilicate Glass 3.3 |
| Type | Claisen Adapter (Two-Neck, Y-shape) |
| Configuration | Dual Top Necks + Bottom Joint |
| Joint Type | Standard Ground Joints |
| Chemical Resistance | Excellent |
| Thermal Resistance | High |
| Transparency | Clear |
| Autoclavable | Yes |
Product Variants
| Top Joint 1 | Top Joint 2 | Bottom Joint |
|---|---|---|
| 10/19 | 10/19 | 10/19 |
| 14/23 | 14/23 | 14/23 |
| 19/26 | 19/26 | 19/26 |
| 24/29 | 24/29 | 24/29 |
| 24/29 | 24/29 | 29/32 |
| 29/32 | 29/32 | 34/35 |
| 29/32 | 29/32 | 29/32 |
| 29/32 | 29/32 | 40/38 |
Comparison: Claisen Adapter vs Three-Way Adapter
| Feature | Claisen Adapter | Three-Way Adapter |
|---|---|---|
| Design | Y-shaped dual neck | Angled side arm |
| Function | Splits into two vertical paths | Single side connection |
| Best Use | Distillation & reflux branching | Gas/vacuum connection |
| Flexibility | High | Moderate |
Key Advantages
- Enables multi-component branching in laboratory systems
- Durable borosilicate construction for harsh conditions
- Standardized joints for seamless compatibility
- Ideal for advanced distillation and reflux workflows
The Borosilicate Glass Claisen Adapter (Two-Neck) is an essential component for laboratories requiring flexibility and precision in complex setups. Its Y-shaped design, robust construction, and compatibility with standard systems make it indispensable for advanced chemical and analytical applications.
- Joint Size: 10/19 (Middle) × 10/19 (Side) × 10/19 (Bottom) 14/23 (Middle) × 14/23 (Side) × 14/23 (Bottom) 19/26 (Middle) × 19/26 (Side) × 19/26 (Bottom) 24/29 (Middle) × 24/29 (Side) × 24/29 (Bottom) 24/29 (Middle) × 24/29 (Side) × 29/32 (Bottom) 29/32 (Middle) × 29/32 (Side) × 34/35 (Bottom) 29/32 (Middle) × 29/32 (Side) × 29/32 (Bottom) 29/32 (Middle) × 29/32 (Side) × 40/38 (Bottom)