WHELAN SCIENTIFIC 867530922 Spherical Separatory Funnel Stj 24/40

( Brand: Whelan Scientific ), ( Manufacturer Part Number: 867530922 ), ( Unit Type: Unit ), ( Country Of Origin: United States ), ( Intended Use/discipline: Biological Laboratory, Dental Laboratory, Medical Laboratory, Microbiological Laboratory, Physical Laboratory )

Review WHELAN SCIENTIFIC Spherical Separatory Funnel 24/40 Stj 100 Ml Lot Of Funnels

The **Whelan Scientific 867530922 Spherical Separatory Funnel (24/40 STJ Funnels)** is a precision-engineered laboratory accessory designed for efficient and reliable liquid-liquid extractions, offering both functionality and durability in demanding chemical and analytical workflows. Crafted from high-quality borosilicate glass (Type I, conforming to ISO 3585 and USP Class A standards), this spherical separatory funnel combines clarity and chemical resistance to ensure accurate observations and prolonged service life, even with aggressive solvents or corrosive reagents. Its distinctive **spherical design** minimizes dead space and maximizes extraction efficiency, allowing for smoother phase separation and reduced carryover between aqueous and organic layers. The **24/40 standard taper joint** ensures a secure, leak-proof connection to compatible glassware, including adapters, stopcocks, or other laboratory apparatus, while the **STJ (Standard Taper Joint) compatibility** guarantees seamless integration with a wide range of standard laboratory equipment, enhancing versatility in research, pharmaceutical, and industrial settings.

The funnel s robust construction features a **thick-walled body** reinforced for durability, capable of withstanding repeated use and the pressure fluctuations inherent in extraction processes. The **ground-glass stopcock** (included or available as an optional accessory) provides precise control over liquid flow, reducing splashing and contamination while allowing for gradual drainage of separated phases. The **spherical shape** not only optimizes separation dynamics but also minimizes the risk of clogging or residue buildup, making it ideal for both routine and high-volume applications. Additionally, the funnel s **transparent design** enables real-time monitoring of phase clarity, color changes, or emulsification, which is critical for ensuring the integrity of analytical results. Whether used in organic synthesis, environmental testing, or biochemical separations, this separatory funnel delivers consistent performance, making it a trusted choice for laboratories prioritizing precision and reliability.

For enhanced safety and ease of use, the **Whelan Scientific 867530922** is often paired with compatible stopcocks, adapters, or clamps (sold separately), allowing for customization based on specific experimental requirements. Its compatibility with standard laboratory glassware and vacuum systems further extends its utility, accommodating a broad spectrum of extraction techniques, including solvent extraction, liquid-liquid partitioning, and sample preparation for chromatography. Built to meet rigorous industry standards, this separatory funnel exemplifies the blend of engineering excellence and scientific utility that defines high-performance laboratory glassware, ensuring dependable performance in even the most exacting applications.

### **Pros and Cons of buying a Whelan Scientific 867530922 Spherical Separatory Funnel (24/40 STJ)**

1. **High-Quality Construction** The spherical design and durable materials (likely borosilicate glass) ensure longevity and resistance to chemical corrosion, making it suitable for demanding laboratory applications.

2. **Standard Joint Compatibility** The 24/40 STJ (Standard Taper Joint) ensures compatibility with a wide range of laboratory glassware, adapters, and connectors, reducing the need for additional adapters.

3. **Efficient Separation** The spherical shape provides better mixing and separation of immiscible liquids (e.g., aqueous and organic phases) compared to conical funnels, improving extraction efficiency.

4. **Versatility** Suitable for liquid-liquid extractions, solvent washes, and other common laboratory procedures in chemistry, biochemistry, and pharmaceutical research.

5. **Brand Reputation** Whelan Scientific is a trusted manufacturer of laboratory glassware, known for precision and reliability in scientific equipment.

6. **Easy Cleaning and Maintenance** The smooth glass surface and lack of internal crevices make it easier to clean and sterilize compared to some alternative designs.

7. **Cost-Effective for Bulk Use** While the upfront cost may be higher than plastic alternatives, its durability and performance justify the investment in long-term use.

1. **Fragility** Glass funnels are prone to breakage if dropped or mishandled, posing a risk in busy or less controlled laboratory environments.

2. **Weight** The glass material makes it heavier than plastic alternatives, which can be cumbersome during frequent use or transport.

3. **Higher Initial Cost** Compared to disposable or plastic separatory funnels, the upfront cost is significantly higher, though this is offset by durability.

4. **Maintenance Requirements** Requires careful handling to avoid scratches or damage, which could compromise sealing or functionality over time.

5. **Limited Temperature Resistance** While borosilicate glass is heat-resistant, extreme temperature changes (e.g., rapid heating or cooling) can still cause stress fractures.

6. **Space Requirements** Glassware takes up more storage space than plastic or disposable alternatives, which may be a consideration in labs with limited bench space.

7. **Potential for Contamination** If not cleaned thoroughly, glass surfaces can harbor residues or microbial growth, though this is true of any reusable equipment.

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The Whelan Scientific 867530922 Spherical Separatory Funnel is an excellent investment for laboratories requiring high-performance, durable, and versatile glassware. Its superior separation efficiency, compatibility with standard joints, and long-term reliability make it ideal for routine and advanced chemical procedures. However, its fragility, higher cost, and maintenance needs may not suit environments where disposability or ease of handling is prioritized over durability.

- You work in a laboratory setting where durability, precision, and frequent use are critical (e.g., research labs, pharmaceutical development, or analytical chemistry).

- You prioritize compatibility with existing glassware and long-term cost savings despite the initial expense.

- Your lab has protocols in place for careful handling and maintenance of glassware.

- Your lab frequently handles fragile samples or requires disposable options for safety or convenience.

- Budget constraints make the upfront cost prohibitive, and plastic or lower-cost glass alternatives are sufficient.

- Your workflow involves extreme temperature variations or high-risk handling that could damage glass equipment.

For most professional laboratories, the benefits of this separatory funnel outweigh its drawbacks, making it a worthwhile purchase for high-quality separatory work.

Details:

Whelan Scientific Glass Spherical Separatory Funnel 24/40 STJ 100 ml with Side Hole Opening Lot of 2 Funnels.

part #: 867530922 prices

• $75.00-$300.00

specifications plasticwarelabsuppy:

• brand: Whelan Scientific
• mpn: 867530922
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• country of origin: United States
• intended use/discipline: Biological Laboratory, Dental Laboratory, Medical Laboratory, Microbiological Laboratory, Physical Laboratory

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