---
product_id: 411988858
title: "Borosilicate Glass Heavy Wall Single Neck Flat Bottom Boiling Flask, with 24/40 Standard Taper Outer Joint, 125ml"
brand: "stonylab"
price: "$U2646"
currency: UYU
in_stock: true
reviews_count: 13
url: https://www.desertcart.uy/products/411988858-borosilicate-glass-heavy-wall-single-neck-flat-bottom-boiling-flask
store_origin: UY
region: Uruguay
---

# 450°C stable operating temp 125ml precise capacity Borosilicate glass corrosion resistant Borosilicate Glass Heavy Wall Single Neck Flat Bottom Boiling Flask, with 24/40 Standard Taper Outer Joint, 125ml

**Brand:** stonylab
**Price:** $U2646
**Availability:** ✅ In Stock

## Summary

> 🧪 Elevate your lab game with precision and durability!

## Quick Answers

- **What is this?** Borosilicate Glass Heavy Wall Single Neck Flat Bottom Boiling Flask, with 24/40 Standard Taper Outer Joint, 125ml by stonylab
- **How much does it cost?** $U2646 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/411988858-borosilicate-glass-heavy-wall-single-neck-flat-bottom-boiling-flask)

## Best For

- stonylab enthusiasts

## Why This Product

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

## Key Features

- • **Universal Fit:** 24/40 standard taper joint for seamless lab integration
- • **Durable Design:** Heavy wall borosilicate glass built to resist corrosion and thermal shock
- • **Thermal Mastery:** Handles up to 450°C without breaking a sweat
- • **Precision Capacity:** 125ml volume for exact experimental control
- • **Peace of Mind Warranty:** 1-year coverage ensures your investment is protected

## Overview

This 125ml borosilicate glass boiling flask features a heavy wall and flat bottom design, ideal for distillation, reflux, and synthesis. It withstands temperatures up to 450°C and includes a 24/40 standard taper outer joint for compatibility with common lab setups. Engineered for chemical resistance and thermal stability, it comes with a 1-year warranty for reliable performance.

## Description

Full description not available

## Features

- Flat bottom boiling flask used in chemical experiments for distillation, reflux, synthesis reactions, and other operations
- Single neck with 24/40 standard taper outer joint; capacity: 125 ml
- Made of borosilicate glass, it exhibits excellent corrosion resistance and a low coefficient of thermal expansion; stable operating temperature: 450°C
- Inspect the product for cracks before use; do not heat with open flames; instantaneous temperature changes must not exceed 140°C; the manufacturer is not liable for damages caused by improper operation
- Warranty: 1-year coverage period for your peace of mind, if received damaged, please let us know and we will solve it promptly

## Product Details

- **Material:** Glass
- **Capacity:** 125 Milliliters
- **Brand:** stonylab
- **Bottom Shape:** Round
- **UPC:** 843798141810

## Images

![Borosilicate Glass Heavy Wall Single Neck Flat Bottom Boiling Flask, with 24/40 Standard Taper Outer Joint, 125ml - Image 1](https://m.media-amazon.com/images/I/51AG5EtBQaL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Quality of glassware.
  

*by R***. on Reviewed in the United States on July 4, 2020*

I used this flat bottomed flask in a evaporation experiment using a magnetic spin bar coupled with a standard evaporator which I also bought from Laboy to include a 30 degree neck.  I was skeptical about the ability of the flask to deal with quenching water once the molten mass had reacted but it performed flawlessly. Recovery of the water from the solution was 99.4% via the condenser tube. I have used Laboy glassware seldom in the past but am convinced now that the future use will be exclusive in our labs.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    My favorite flask!
  

*by S***E on Reviewed in the United States on March 23, 2021*

I LOVE this flask, it’s so versatile I use it for everything! It’s thick, it seals tight and despite how much I’ve abused it, it doesn’t have a chip on it! It even survived being used for boiling a solution and then dunked into liquid nitrogen without a cool down period.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great Halloween prop, which subsequently broke on the one day of use.
  

*by K***A on Reviewed in the United States on December 25, 2023*

Great Halloween prop, which subsequently broke on the one day of use.

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-04-27*