---
product_id: 118389919
title: "Alpha Nanotech Borosilicate Solid Glass Beads (4 mm, 0.5 kg / 1.1 lb)"
brand: "alpha nanotech inc."
price: "9427597₫"
currency: VND
in_stock: true
reviews_count: 3
category: "Alpha Nanotech Inc."
url: https://www.desertcart.vn/products/118389919-alpha-nanotech-borosilicate-solid-glass-beads-4-mm-0-5
store_origin: VN
region: Vietnam
---

# ±0.05 mm precision 92% light transmittance 3.21x10⁻⁶ K⁻¹ thermal expansion Alpha Nanotech Borosilicate Solid Glass Beads (4 mm, 0.5 kg / 1.1 lb)

**Brand:** alpha nanotech inc.
**Price:** 9427597₫
**Availability:** ✅ In Stock

## Summary

> 🔬 Elevate your experiments with precision-engineered clarity!

## Quick Answers

- **What is this?** Alpha Nanotech Borosilicate Solid Glass Beads (4 mm, 0.5 kg / 1.1 lb) by alpha nanotech inc.
- **How much does it cost?** 9427597₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/118389919-alpha-nanotech-borosilicate-solid-glass-beads-4-mm-0-5)

## Best For

- alpha nanotech inc. enthusiasts

## Why This Product

- Trusted alpha nanotech inc. brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Spherical Symmetry:** Highly spherical beads ensure smooth, uniform rolling and mixing every time
- • **Precision Perfected:** Ultra-consistent 4 mm beads with ±0.05 mm tolerance for flawless lab results
- • **Lab-Grade Durability:** Dense 2.2240 g/cm³ borosilicate glass built to endure rigorous scientific use
- • **Crystal Clear Quality:** Polished, defect-minimized surfaces boasting 92% visible light transmittance
- • **Thermal Stability Mastery:** Withstands up to 840°C with minimal expansion—ideal for high-temp experiments

## Overview

Alpha Nanotech Borosilicate Solid Glass Beads deliver high-precision, 4 mm diameter spheres with exceptional thermal stability and optical clarity. Engineered for demanding laboratory applications, these polished beads feature minimal defects and a low coefficient of thermal expansion, ensuring reliable performance in scientific and industrial settings.

## Description

Alpha Nanotech Borosilicate Solid Glass Beads (4 mm, 0.5 kg / 1.1 lb): desertcart.com: Industrial & Scientific

Review: Great product! - Works well for protein extraction
Review: Not as uniform or defect-free as claimed in description. - Quality beads, but giving 3 stars because they don’t meet the claims in the description. I put a small handful of the 6mm beads in a flat-bottomed bowl and gently tipped the bowl to roll them around. It didn’t take long to spot a few beads that would stop moving while the rest continued to roll around (not what I would call “high-precision”). Most of the beads appeared to be free of flaws, but I did notice several with cloudy spots or scratches on their surface (not exactly flawless). There was one broken bead in the handful.

## Features

- High Precision Borosilicate Glass Beads (+/- 0.05 mm) Ideal for Various Laboratory Applications;
- Highly Spherical with No Irregular shapes or Defects;
- Polished Surfaces with No Dirty Spots or Scratches;
- Coefficient of Linear Thermal Expansion: 3.21x10^-6 K^-1; Softening Temperature: 840 C;
- Visible Light Transmittance: 92%; Density of Borosilicate Glass: 2.2240 g/cm3;

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07MTWBK7G |
| Best Sellers Rank | #503,698 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #17,693 in Glassware & Labware |
| Date First Available | January 15, 2019 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.1 pounds |
| Manufacturer | Alpha Nanotech Inc. |
| Package Dimensions | 6 x 6 x 1 inches |

## Product Details

- **Brand:** Alpha Nanotech Inc.
- **Color:** 3 mm, 4 mm, 5 mm, and 6 mm
- **Manufacturer:** Alpha Nanotech Inc.
- **Material:** Glass

## Images

![Alpha Nanotech Borosilicate Solid Glass Beads (4 mm, 0.5 kg / 1.1 lb) - Image 1](https://m.media-amazon.com/images/I/510imKhZqLL.jpg)
![Alpha Nanotech Borosilicate Solid Glass Beads (4 mm, 0.5 kg / 1.1 lb) - Image 2](https://m.media-amazon.com/images/I/514mbfe6KmL.jpg)
![Alpha Nanotech Borosilicate Solid Glass Beads (4 mm, 0.5 kg / 1.1 lb) - Image 3](https://m.media-amazon.com/images/I/51fyY-5St8L.jpg)
![Alpha Nanotech Borosilicate Solid Glass Beads (4 mm, 0.5 kg / 1.1 lb) - Image 4](https://m.media-amazon.com/images/I/71danAaZ0YL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product!
*by L***U on July 27, 2021*

Works well for protein extraction

### ⭐⭐⭐ Not as uniform or defect-free as claimed in description.
*by A***T on September 15, 2021*

Quality beads, but giving 3 stars because they don’t meet the claims in the description. I put a small handful of the 6mm beads in a flat-bottomed bowl and gently tipped the bowl to roll them around. It didn’t take long to spot a few beads that would stop moving while the rest continued to roll around (not what I would call “high-precision”). Most of the beads appeared to be free of flaws, but I did notice several with cloudy spots or scratches on their surface (not exactly flawless). There was one broken bead in the handful.

### ⭐⭐⭐⭐⭐ Product
*by C***N on August 11, 2021*

great product, fully satisfied!

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-12*