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  3. KIMBLE KONTES LENGTH285

KIMBLE KONTES LENGTH285 Glass Snyder Distillation Column 125MM 19/22

Length285 Kimble Kontes Glass Co Improved Snyder Distillation Column 125mm 19/22

( Brand: Kimble Kontes ), ( Manufacturer Part Number: LENGTH285 ), ( Custom Bundle: No )

Review KIMBLE KONTES Glass Co Improved Snyder Distillation Column 125mm 19/22

The **Kimble Kontes Length 285 Snyder Distillation Column (125mm Diameter, 19/22 Joint)** is a precision-engineered glassware solution designed for high-performance laboratory distillation, blending durability with exceptional clarity to meet the demands of advanced chemical separations, fractional distillation, and analytical procedures. Constructed from borosilicate glass (Type 1, Class A), this column ensures chemical resistance, thermal stability, and optical transparency, allowing operators to monitor distillation processes with unobstructed visibility of vapor-liquid interactions. With a generous **285mm working length**, the column provides ample space for efficient separation of components with varying boiling points, making it ideal for applications in organic synthesis, pharmaceutical development, and petrochemical analysis. The **125mm internal diameter** offers a balanced surface area-to-volume ratio, optimizing reflux and minimizing hold-up volume while maintaining sufficient capacity for moderate-scale operations. The **19/22 standard taper joint** ensures a secure, leak-proof connection to compatible glassware, including condensers, adapters, and flasks, facilitating seamless integration into existing distillation setups. Engineered with a **Snyder design**, this column features a tapered internal profile that enhances vapor distribution and promotes more uniform reflux, reducing the risk of channeling and improving separation efficiency. Its robust construction, coupled with the reliability of Kontes engineering, makes this column a versatile tool for both educational laboratories and industrial research environments where precision and reproducibility are critical. Whether used for simple binary separations or complex multi-component distillations, the **Kimble Kontes Length 285 Snyder Distillation Column** delivers the performance and clarity required for demanding distillation applications.

### **Pros and Cons of buying a Kimble Kontes Length 285 Glass Snyder Distillation Column (125mm, 19/22 Joints)**

#### **Pros:**

1. **High-Quality Glass Construction** Kimble Kontes is a reputable brand known for durable, borosilicate glass (likely Type 1 or 3.3) that resists thermal shock and chemical corrosion, making it ideal for laboratory and small-scale distillation.

2. **Standardized Joints (19/22)** The 19/22 ground glass joints are widely compatible with other laboratory glassware, allowing for easy integration with condensers, adapters, and other distillation components.

3. **Long Column Length (285mm)** A longer column provides better separation efficiency, particularly useful for fractional distillation of mixtures with closely boiling components (e.g., ethanol-water, essential oils, or crude extracts).

4. **Snyder Design** The Snyder column is a well-established fractional distillation design that offers improved separation compared to simple or Vigreux columns, making it suitable for purifying compounds with similar boiling points.

5. **Chemical Resistance** Borosilicate glass is resistant to most acids, bases, and organic solvents, ensuring longevity in laboratory use.

6. **Easy to Clean** Glass is non-porous and can be thoroughly cleaned with solvents or steam, reducing contamination risks.

7. **Safety** Unlike metal or plastic columns, glass does not leach contaminants or degrade under high temperatures, making it safer for sensitive applications.

8. **Modularity** The column can be paired with various adapters, thermometers, and condensers, allowing for customization based on specific distillation needs.

#### **Cons:**

1. **Fragility** Glass is prone to breakage if mishandled, especially during assembly, transport, or thermal shock (e.g., rapid heating/cooling). This requires careful handling.

2. **Limited Pressure Resistance** Unlike metal or reinforced columns, standard glass columns cannot handle high-pressure operations, restricting their use to atmospheric or low-vacuum distillation.

3. **Sealing Challenges** Ground glass joints (19/22) require proper lubrication (e.g., vacuum grease) to prevent leaks, which can be a hassle if not maintained correctly.

4. **Weight** Glass columns are heavier than plastic or aluminum alternatives, which may be inconvenient for frequent relocations or fieldwork.

5. **Cost** High-quality glassware from brands like Kimble Kontes is more expensive than basic plastic or metal alternatives, though it offers better performance and durability.

6. **Maintenance Overhead** Regular cleaning and joint maintenance (e.g., re-greasing) are necessary to prevent leaks and ensure optimal performance.

7. **Not Ideal for Large-Scale Use** While suitable for lab-scale or small-scale distillation, it may not be efficient or practical for industrial or high-throughput applications.

8. **Potential for Contamination** If not cleaned properly, glass surfaces can harbor residues from previous distillations, affecting purity.

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### **Conclusion**

The **Kimble Kontes Length 285 Snyder Distillation Column (125mm, 19/22)** is an excellent choice for **laboratory-scale fractional distillation** where precision, chemical resistance, and separation efficiency are critical. Its borosilicate glass construction, standardized joints, and Snyder design make it highly effective for purifying mixtures with similar boiling points, such as ethanol, essential oils, or organic solvents. However, its **fragility, maintenance requirements, and higher cost** may be drawbacks for users who prioritize durability, portability, or high-pressure applications.

If your primary needs align with **small-scale, high-purity distillation in a controlled lab environment**, this column is a strong recommendation. For **industrial, large-scale, or high-pressure applications**, alternatives like stainless steel or reinforced plastic columns may be more suitable.

### **Recommendation:** **Buy this column if:**

- You need a reliable, high-efficiency fractional distillation setup for laboratory or small-scale use.

- You work with mixtures requiring precise separation (e.g., ethanol-water, essential oils).

- You can accommodate the maintenance (cleaning, joint lubrication) and handling precautions.

**Consider alternatives if:**

- You require **high-pressure or industrial-scale distillation** (metal columns may be better).

- You need **portability or ruggedness** (plastic or reinforced glass may suffice).

- Budget constraints make this column unaffordable (lower-cost glass or plastic options exist, though with trade-offs in performance).

For most **homebrewers, small-scale chemists, or lab technicians**, this column provides an optimal balance of performance and reliability. Always ensure proper assembly, lubrication, and handling to maximize its lifespan and effectiveness.

Details:

This distillation column is an essential tool for chemists and researchers looking to purify separate substances through techniques. 19/22 joint size, this distillation column is suitable for various applications in research labs and educational settings. The KONTES Glass Co Improved Snyder Distillation Column is a high-quality piece of glassware designed for laboratory use. Made by the reputable brand KIMBLE KONTES, this product ensures reliability and precision in lab experiments.

part #: length285 price

  • $115.00

specifications plasticwarelabsuppy:

  • brand: Kimble Kontes
  • mpn: Length285
  • custom bundle: No

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  • quantity: 1
  • availability: In Stock
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  • options: Ship-to-home
  • started: April 6, 2026

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  • service: USPS Ground Advantage
  • cost: $8.72
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  • transit: 4-10 Days
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  • condition: Used
  • Medical, Lab Dental Supplies > Glassware Plasticware > Other Medical Lab Glassware
custom bundle: no,
category: business & industrial > medical, lab dental supplies > glassware plasticware > medical lab glassware, sku: 13623948920002892,
Kimble Kontes LENGTH285 Is Similar To:
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1 offer $115.00 USD
  • New – Open box. Offer #1 priced at $115.00 + $15.80 shipping estimate = $130.80* total. Joint Size (mm) 24/40. Column Length without Joint (mm) 200.+$15.80 shipping

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