ACE GLASS 6488-15 Flange Thermometer Joint 4-NECK 24/42 14/35

( Brand: Ace Glass ), ( Manufacturer Part Number: 6488-15 ), ( Part Type: Flange Thermometer Joint )

Review ACE GLASS Conical Flange 24/42 Thermometer Joint 14/35

The **Ace Glass 6488-15 4-Neck Round Bottom Flask with 24/42 Standard-Taper Thermometer Joint and 14/35 Ground Joints** is a precision-engineered laboratory glassware component designed for versatile and high-performance use in chemical synthesis, distillation, and reaction monitoring. Crafted from borosilicate glass (Type 3.3), this flask exemplifies durability and chemical resistance, making it ideal for applications involving corrosive solvents, extreme temperatures, and rigorous agitation. Its **4-neck configuration** provides unparalleled flexibility, accommodating a thermometer joint (24/42), a central neck for a stir bar or reflux condenser, and two additional 14/35 ground joints for auxiliary equipment such as addition funnels, gas inlet tubes, or secondary condensers. The **24/42 thermometer joint** ensures precise temperature measurement, critical for reactions requiring exact thermal control, while the **14/35 ground joints** allow for modular setups tailored to specific experimental needs. The flask s **round bottom design** enhances heat distribution and minimizes hot spots, reducing the risk of thermal stress and ensuring even reaction conditions. Its **smooth, polished surface** minimizes residue buildup, facilitating easy cleaning and maintenance, while the **standard taper joints** guarantee a secure, leak-proof seal when properly fitted with compatible adapters or condensers. Whether used in academic research, pharmaceutical development, or industrial-scale synthesis, this flask delivers reliability, precision, and adaptability, making it an indispensable tool for chemists and laboratory technicians demanding excellence in experimental workflows.

### **Pros and Cons of buying a Ace Glass 6488-15 (4-Neck Flask with 24/42 Thermometer Joint and 14/35 Ground Joints)**

1. **Durability and Quality** Ace Glass is a well-known manufacturer of laboratory glassware, known for producing high-quality, borosilicate glass products that are resistant to thermal shock and chemical corrosion. This flask is designed for heavy-duty use in laboratory settings.

2. **Standardized Joints** The 24/42 thermometer joint and 14/35 ground joints are industry-standard sizes, ensuring compatibility with most laboratory equipment, including condensers, adapters, and other glassware. This makes it versatile for various chemical processes.

3. **Four-Necked Design** The four-neck configuration provides flexibility for attaching multiple accessories simultaneously, such as a thermometer, reflux condenser, addition funnel, or stirring mechanism. This is particularly useful in reactions requiring precise temperature control and multiple inputs.

4. **Compatibility with Common Lab Equipment** The 24/42 joint is widely used for thermometers, while the 14/35 joints can accommodate standard adapters, stopcocks, or additional glassware, making it adaptable for distillation, reflux, or extraction setups.

5. **Cost-Effective for Bulk Use** While not the cheapest option, the durability and functionality of this flask make it a cost-effective choice for laboratories that require reliable, long-lasting glassware rather than disposable alternatives.

6. **Easy to Clean and Maintain** Borosilicate glass is resistant to most solvents and acids, making it easy to clean and reuse. Proper care ensures it remains functional for years.

7. **Safety** Unlike plastic or lower-quality glass, borosilicate glass is less likely to shatter under thermal stress, reducing the risk of accidents in the lab.

---

1. **Fragility Despite Durability** While borosilicate glass is more resistant to thermal shock than soda-lime glass, it is still fragile. Dropping or mishandling the flask can cause cracks or breakage, especially if the glass is old or has been subjected to repeated stress.

2. **Limited Temperature Range** While borosilicate glass can handle moderate temperature changes, extreme temperatures (e.g., rapid heating or cooling) can still cause stress fractures over time. For very high-temperature applications, specialized glassware or metal equipment may be required.

3. **Weight** Glass flasks are heavier than plastic alternatives, which can make handling and transporting them more cumbersome, particularly in large quantities.

4. **Potential for Leaks** If the ground joints (14/35 or 24/42) are not properly lubricated or if the glassware is damaged, leaks can occur during use, compromising the integrity of the reaction or experiment.

5. **Cost** Compared to disposable or plastic labware, this flask is more expensive upfront. However, its longevity often justifies the cost in professional settings.

6. **Maintenance of Joints** The ground joints require periodic cleaning and lubrication with high-quality joint grease to prevent sticking or damage. Neglecting this can lead to poor sealing and inefficiency.

7. **Not Ideal for High-Pressure Applications** While suitable for most standard laboratory processes, this flask is not designed for high-pressure reactions. For such applications, specialized glassware or metal reactors are necessary.

---

The **Ace Glass 6488-15 (4-neck flask with 24/42 thermometer joint and 14/35 ground joints)** is a robust, versatile, and reliable piece of laboratory glassware ideal for medium to large-scale chemical reactions requiring precise temperature control and multiple inputs. Its standardized joints ensure compatibility with a wide range of equipment, and its borosilicate construction provides durability against chemical corrosion and thermal stress. However, its fragility, weight, and maintenance requirements (such as joint lubrication) are drawbacks that must be considered. For laboratories with the budget and need for high-quality, reusable glassware, this flask is an excellent investment. For smaller-scale or disposable applications, alternatives may be more practical.

---

- You are working in a professional laboratory setting where durability and precision are critical.

- You require a multi-neck setup for reactions involving temperature monitoring, reflux, or multiple inputs.

- You prioritize long-term use and are willing to invest in high-quality glassware that will last for years with proper care.

- Your setup requires compatibility with standard 24/42 and 14/35 joints.

- You are working on a tight budget and cannot afford the upfront cost, as disposable or plastic alternatives may be more economical for short-term use.

- Your experiments involve extreme temperatures or high pressures, where specialized equipment is necessary.

- You frequently handle the flask roughly, as the risk of breakage may outweigh the benefits.

- You prefer minimal maintenance, as this flask requires periodic cleaning and joint lubrication to function optimally.

For most academic or industrial laboratories, this flask is a **highly recommended purchase** due to its reliability and versatility. Always ensure proper handling, storage, and maintenance to maximize its lifespan.

Details:

If a custom power cord or AC adapter is required for the item, it only included if pictured described above. Privacy: Rest assured your information will not be given, sold, rented or loaned to any third party. Photos are of the actual unit for sale. Item was recently removed from working service and is in excellent order.

Shipping Details: originates from zip code 95742. Cosmetically in good condition showing minor scuffs / scratches blemishes from previous use. Item will come with a 30 Day Warranty. Includes 4-Neck Conical Flange 24/42 Thermometer Joint 14/35 as pictured.

part #: 648815 prices

• $93.74-$125.24

specifications plasticwarelabsuppy:

• brand: Ace Glass
• mpn: 6488-15
• part type: Flange Thermometer Joint

shipping plasticwarelabsuppy:

• class: Standard, Expedited, One-day
• transit: 3-7 Days
• type: Fixed
• service: Standard, Expedited, Overnight
• cost: $0.00

offer plasticwarelabsuppy:

• availability: In Stock
• started: May 12, 2026
• options: Ship-to-home
• sold: 0
• quantity: 1

seller plasticwarelabsuppy:

• rating: 99.8%
• # reviews: 43738
• city: Rancho Cordova, California

general plasticwarelabsuppy:

• condition: Used
• Medical, Lab Dental Supplies > Glassware Plasticware > Other Medical Lab Glassware

returns plasticwarelabsuppy:

• policy: Returns Accepted
• time: 30 Days
• method: Money back
• paid by: Seller

payments plasticwarelabsuppy:

• wallet: Google-pay
• other
• credit card: Diners-club

Ace Glass 6488-15 Is Similar To:

• 1200ml Ace Glass Instatherm Low Form Oil Bath With Cord (30.6% similar) Review the pictures for included elements and condition of item. See pictures for more details. Max volts :120. This is for one used 1200ML Ace Glass einsteinium oil bath. To make sure you are getting an accurate quote via the shipping calculator, your zip code is default when calculating cost for ...(October 25th, 2018)
• 19-38 Ace Glass Incorporated Lab (35.6% similar) Please see pictures and I will try to answer any questions. It is used and needs to be cleaned up. I honestly don't know exactly what it is so how to better describe. Ace Glass I got it from a university offer with bunch of other stuff...(March 30th, 2019)
• 3840-lco Pyrex Bulb Ace Glass Laboratory Chemistry Glassware (27.9% similar) I don't know what they are used for, but assume have been used, because were with a group of these items, some which clearly. The pictures you see are of actual item. You are buying on a pair of items. The Ace Glass item has a chip on very bottom. So, I assume they may need to be cleaned for your ...(June 30th, 2019)
• 40-35 Ace Glass Laboratory Total Length Approx Not Sure Porosity Read (30.4% similar) Not sure what its proper name is. Ace Glass laboratory total length approx 15 not sure: porosity maybe - read I picked this up from a local colleges liquidation sale over 10 years ago. It does not come with its original box but is new old stock. I saw some that looked similar called porosity. ...(February 4th, 2019)
• 513654 Ace Glass Claisen Distilling Adapter Thread St (34.4% similar) ...(January 14th, 2019)
• 5295-16 Ace Glass Outlet Stopcock Flask Adapter With Straight Tip Size (36% similar) Warranty this item is guaranteed to be as described. Power cords and adapters are never included unless specifically mentioned. Good luck buying. It comes with a 14 day guarantee against being DOA from receipt. Always here to help this unit will arrive in the condition shown. On the ask a question ...(March 29th, 2019)
• 5837-53 Ace Glass Ptfe Thread Tip Adapter (34.5% similar) Ace Glass PDF lure-Loki 50 thread tip adapter with o-ring used lightly. Selling as is...(January 23rd, 2019)
• 5846-47 Pyrex Ace Glass Teflon Ptfe Back Seal Plug For Pressure (34.8% similar) Used in excellent condition...(March 3rd, 2019)
• 5848-58 Ace Glass 6 Polyethylene (35.6% similar) 6 per package. Selling as is. 6 Ace Glass polyethylene filter discs unknown porosity new qty...(January 21st, 2018)
• 5964-12 Ace Glass Dewar Type Condenser Id Jacket Joint Od Connect (40.3% similar) In great used condition. Very small chip on bottom joint. Used Glassware will show signs of wear sometimes including light scratches, discoloration, stickers tape, or exterior markings. Thorough cleaning and sterilization are recommended before use...(November 12th, 2018)
• 6486-20 Ace Reaction Flask Head Conical Flange Three Neck Center (46.6% similar) Shipping buyer pays for all shipping costs. Ace reaction flask head 4 conical flange three neck center questions. Here : this lot is for one sides. Good luck buying. On the ask a question link at bottom of this listing. This unit will arrive in the condition shown, has some residue inside chamber ...(October 9th, 2018)