---
product_id: 23636553
title: "Laboy Glass 1000mL Single Neck Round Bottom Boiling Flask Heavy Wall with 24/40 Joint Heating Reaction Receiving Flask Organic Chemistry Lab Glassware"
brand: "laboy"
price: "R2025"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Laboy"
url: https://www.desertcart.co.za/products/23636553-laboy-glass-1000ml-single-neck-round-bottom-boiling-flask-heavy
store_origin: ZA
region: South Africa
---

# Standard 24/40 precision-ground joint for airtight, leak-proof fit Heavy-wall borosilicate glass (3.5–5mm) for extreme heat resistance 1000mL capacity ideal for large-scale, multi-step reactions Laboy Glass 1000mL Single Neck Round Bottom Boiling Flask Heavy Wall with 24/40 Joint Heating Reaction Receiving Flask Organic Chemistry Lab Glassware

**Brand:** laboy
**Price:** R2025
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your lab game with the flask that never cracks under pressure!

## Quick Answers

- **What is this?** Laboy Glass 1000mL Single Neck Round Bottom Boiling Flask Heavy Wall with 24/40 Joint Heating Reaction Receiving Flask Organic Chemistry Lab Glassware by laboy
- **How much does it cost?** R2025 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/23636553-laboy-glass-1000ml-single-neck-round-bottom-boiling-flask-heavy)

## Best For

- laboy enthusiasts

## Why This Product

- Trusted laboy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Even Heat Distribution:** Round bottom design minimizes hotspots and stress fractures for consistent reaction outcomes.
- • **Seamless Lab Integration:** Precision 24/40 joint ensures airtight connections with all standard lab glassware—no leaks, no fuss.
- • **Unmatched Thermal Durability:** Thick borosilicate walls withstand direct flame, vacuum, and rapid temp changes without cracking.
- • **Handcrafted Clarity & Strength:** Annealed, bubble-free glass guarantees reproducibility and long-term reliability in critical experiments.
- • **Optimized for Scale-Up Chemistry:** Generous 1000mL volume supports industrial batch reactions and preparative processes.

## Overview

The Laboy Glass 1000mL Single Neck Round Bottom Boiling Flask is a premium heavy-wall borosilicate glass vessel designed for demanding organic chemistry applications. Featuring a standard 24/40 joint for airtight connections and a robust 3.5–5mm thick wall, it withstands direct flame, vacuum, and thermal shocks. Its round bottom ensures uniform heating, making it ideal for large-scale distillations and batch reactions. Hand-blown and annealed for clarity and durability, this flask is trusted by professionals to deliver safe, reliable performance in critical lab environments.

## Description

Laboy Glass 1000mL Single Neck Round Bottom Boiling Flask Heavy Wall with 24/40 Joint Heating Reaction Receiving Flask Organic Chemistry Lab Glassware: desertcart.com: Industrial & Scientific

Review: Strange size, but great flask. - By strange size, I mean the diameter is slightly smaller than 1L RBFs I've gotten from other manufacturers. They all fit my 1L heating mantle nice and snug -- this flask has a small amount of space between the mantle and flask when it rests on the bottom (~5-7mm at the top of the mantle). I just made some padding out of aluminum foil and it worked fine (still has a 1L volume, somehow?) In fact, this is the first 1L RBF I've purchased from desertcart that didn't break or even show any signs of cracking after distilling a molten mixture of NaHSO4 and NaNO3 to produce fuming nitric acid! I've run the process twice now in the Laboy flask with no visible damage whatsoever. Thank God! Previously, the flasks would crack, spilling a mixture of nitric, sulfuric, and molten sodium bisulfate all over the heating mantle, not only ruining the distillation but setting me back ~$200 to replace the flask and mantle - closer to 500 the first time, as i was using my nice, fancy mantle... RIP :( I debated naming any of the other flask brands that failed me, as I didn't want to step on any toes, but since it was such a very expensive and extremely hazardous failure, I will. DO NOT USE RBFs FROM VEVOR, YUXun, QINGYI, OR DESCHEM. At least not for anything but the mildest of heating/distillation processes! Laboy continues to impress. Spend the few extra bucks - it will save you a fortune down the road, not to mention a lengthy and hazardous cleanup. 5/5, will be buying more.
Review: Good quality as always. - Thanks!

## Features

- Heavy-Wall Borosilicate Glass Construction Crafted from premium 3.3 borosilicate glass with thick walls (3.5–5mm) for superior thermal and mechanical strength. Withstands direct flame heating, vacuum conditions, and extreme temperature changes without cracking.
- Standard 24/40 Taper Joint – Outer Joint Precision-ground 24/40 outer joint ensures airtight, leak-proof connections with condensers and adapters. Interchangeable with other standard lab glassware for seamless integration in organic chemistry setups.
- 1000mL Capacity – Designed for Large-Scale Chemistry Setups Used for multi-step distillations, batch reactions, or vacuum applications. The 1000 mL volume is suited for industrial labs, scale-up processes, and preparative chemistry.
- Round Bottom for Uniform Heat Distribution Round bottom design promotes even heating, reduces hotspots, and minimizes stress fractures. Requires support via cork ring or clamp – recommended for controlled heating with mantles or water baths.
- Hand-Blown Quality – Stress Relieved & Impurity-Free Each flask is handcrafted and annealed at high temperatures for optimal clarity and structural integrity. No bubbles or contaminants—ensuring reproducibility in critical lab procedures.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B010BA0O4U |
| Best Sellers Rank | #261,522 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #48 in Lab Boiling Flasks |
| Date First Available | July 16, 2014 |
| Item Weight | 0.035 ounces |
| Item model number | HMF010331 |
| Manufacturer | Laboy |
| Package Dimensions | 8.5 x 6.5 x 5 inches |

## Product Details

- **Bottom Shape:** Round
- **Brand:** LABOY
- **Capacity:** 1000 Milliliters
- **Manufacturer:** Laboy
- **Material:** Borosilicate Glass

## Images

![Laboy Glass 1000mL Single Neck Round Bottom Boiling Flask Heavy Wall with 24/40 Joint Heating Reaction Receiving Flask Organic Chemistry Lab Glassware - Image 1](https://m.media-amazon.com/images/I/316BhfxhnDL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Is this glassware compatible with other major brands like Corning or Chemglass?**
A: Laboy glassware uses standard taper ground joints (e.g., 24/40) that are precision-ground. They are fully interchangeable with any other glassware adhering to US ASTM standards, ensuring a leak-tight seal with your existing setup.

**Q: Can this flask withstand high vacuum applications without imploding?**
A: Yes. This is a heavy-wall design (hand-blown to approx. 3.5mm thickness) and has been thoroughly annealed to remove stress. It is specifically engineered to withstand the pressure differences of vacuum distillation safely.

**Q: I'm worried about breakage during shipping. How is it packaged?**
A: We prioritize safe delivery. Each piece is wrapped in thick bubble wrap and cushioned within a sturdy, custom-fitted box.If it arrives damaged, we will replace it immediately.

**Q: What is the maximum temperature this glass can handle?**
A: Made from premium Borosilicate 3.3 glass, it has a low coefficient of thermal expansion. It can withstand temperatures up to 500°C (932°F) for short periods and is highly resistant to thermal shock (sudden temperature changes).

**Q: What is the difference between "heavy wall" and standard glassware?**
A: Standard glassware often has thin, uneven walls that are prone to cracking. Laboy glass is hand-blown by skilled lampworkers to ensure a uniform, heavier wall thickness (up to 2x thicker than standard), providing superior durability for lab use.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Strange size, but great flask.
*by W***M on January 17, 2021*

By strange size, I mean the diameter is slightly smaller than 1L RBFs I've gotten from other manufacturers. They all fit my 1L heating mantle nice and snug -- this flask has a small amount of space between the mantle and flask when it rests on the bottom (~5-7mm at the top of the mantle). I just made some padding out of aluminum foil and it worked fine (still has a 1L volume, somehow?) In fact, this is the first 1L RBF I've purchased from Amazon that didn't break or even show any signs of cracking after distilling a molten mixture of NaHSO4 and NaNO3 to produce fuming nitric acid! I've run the process twice now in the Laboy flask with no visible damage whatsoever. Thank God! Previously, the flasks would crack, spilling a mixture of nitric, sulfuric, and molten sodium bisulfate all over the heating mantle, not only ruining the distillation but setting me back ~$200 to replace the flask and mantle - closer to 500 the first time, as i was using my nice, fancy mantle... RIP :( I debated naming any of the other flask brands that failed me, as I didn't want to step on any toes, but since it was such a very expensive and extremely hazardous failure, I will. DO NOT USE RBFs FROM VEVOR, YUXun, QINGYI, OR DESCHEM. At least not for anything but the mildest of heating/distillation processes! Laboy continues to impress. Spend the few extra bucks - it will save you a fortune down the road, not to mention a lengthy and hazardous cleanup. 5/5, will be buying more.

### ⭐⭐⭐⭐⭐ Good quality as always.
*by K***O on August 19, 2025*

Thanks!

### ⭐⭐⭐⭐⭐ A great piece of lab ware from China.
*by F***E on August 17, 2019*

I recall when breaking glass labware meant an annoying bill from the store room manager, so I was dubious about the quality of chemical glassware coming from China for such low prices. Laboy exceeds my expectations--the glass is of a durable thickness, without ripples or "seeds" or inclusions, the ground glass mates perfectly with my American-made glassware (the grind seems a bit more coarse but to no disadvantage) and even though I haven't stress tested the flask (e.g., pouring liquid nitrogen into a flask at red heat--jeez, just kidding) I have full confidence that Laboy glassware will perform under normal lab conditions to the highest standards.

## Frequently Bought Together

- Laboy Glass 1000mL Single Neck Round Bottom Boiling Flask Heavy Wall with 24/40 Joint Heating Reaction Receiving Flask Organic Chemistry Lab Glassware
- 12 pcs Keck Clips Ground Joints #24, Standard Taper POM for Joints 24/29 and 24/40
- QWORK Boiling Flask, Single Neck Round Bottom, 24/40 Standard Taper Outer Joint, 1000ml

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-22*