---
product_id: 138840690
title: "Quartz Glass Test Tube. High Temperature Resistant Flat Mouth Round Bottom O.D. 20mm .L. 200mm .Laboratory Supplies"
brand: "jffkls"
price: "FREE"
currency: JPY
in_stock: false
url: https://www.desertcart.jp/products/138840690-quartz-glass-test-tube-high-temperature-resistant-flat-mouth-round
store_origin: JP
region: Japan
---

# Quartz Glass Test Tube. High Temperature Resistant Flat Mouth Round Bottom O.D. 20mm .L. 200mm .Laboratory Supplies

**Brand:** jffkls
**Price:** FREE
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Quartz Glass Test Tube. High Temperature Resistant Flat Mouth Round Bottom O.D. 20mm .L. 200mm .Laboratory Supplies by jffkls
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/138840690-quartz-glass-test-tube-high-temperature-resistant-flat-mouth-round)

## Best For

- jffkls enthusiasts

## Why This Product

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

## Description

Note:  We sell various kind of quartz glass  products,  if you want to customize quartz glass products or need a lot of purchases , you have any requirement, please kindly tell us.    Quartz glass is widely used in semiconductor, light source, semi-conducting communication device, laser, optical instrument, laboratory instrument, electrical equipment, medical equipment, high temperature and corrosion resistant chemical instrument, chemical industry, electronics, metallurgy, building materials  industries. and environmental protection .   Quartz glass is widely used in many fields such as electric light source, semiconductor, optical communication, military industry, metallurgy, building materials, chemistry, machinery, electricity, environmental protection and so on because of its excellent physical and chemical properties.

## Features

- HIGH TEMPERATURE RESISTANCE: The softening point temperature of quartz glass is about 1730 C. It can be used for a long time at 1100 C. The maximum temperature in a short time can reach 1450 C.
- CORROSION RESISTANCE: Except hydrofluoric acid, quartz glass hardly reacts with other acids. Its acid resistance is 30 times that of ceramics and 150 times that of stainless steel. Especially at high temperature, the chemical stability of quartz glass is incomparable with other engineering materials.
- GOOD THERMAL STABILITY: The thermal expansion coefficient of quartz glass is very small, and it can withstand drastic temperature changes. When quartz glass is heated to about 1100 C, it will not burst in normal temperature water.
- GOOD TRANSMITTANCE: Quartz glass has good transmittance in the whole spectrum band from ultraviolet to infrared. The transmittance of visible light is above 95%, especially in the ultraviolet spectrum region. The transmittance can reach over 80%.
- GOOD ELECTRICAL INSULATION PERFORMANCE: Quartz glass has 10,000 times the resistance of ordinary glass and is an excellent electrical insulating material. It has good electrical properties even at high temperature. It is widely used in chemistry, semiconductor industry, liquid crystal, lighting field.

## Images

![Quartz Glass Test Tube. High Temperature Resistant Flat Mouth Round Bottom O.D. 20mm .L. 200mm .Laboratory Supplies - Image 1](https://m.media-amazon.com/images/I/41GHU3pCGvL.jpg)
![Quartz Glass Test Tube. High Temperature Resistant Flat Mouth Round Bottom O.D. 20mm .L. 200mm .Laboratory Supplies - Image 2](https://m.media-amazon.com/images/I/410k+WNl9BL.jpg)
![Quartz Glass Test Tube. High Temperature Resistant Flat Mouth Round Bottom O.D. 20mm .L. 200mm .Laboratory Supplies - Image 3](https://m.media-amazon.com/images/I/41h+DnqKZwL.jpg)
![Quartz Glass Test Tube. High Temperature Resistant Flat Mouth Round Bottom O.D. 20mm .L. 200mm .Laboratory Supplies - Image 4](https://m.media-amazon.com/images/I/616F-Y9PS8L.jpg)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-26*