---
product_id: 33980506
title: "25ml Specific Gravity Bottle for Physics - Relative Density"
brand: "onlinesciencemall"
price: "HK$38"
currency: HKD
in_stock: false
url: https://www.desertcart.hk/products/33980506-25ml-specific-gravity-bottle-for-physics-relative-density
store_origin: HK
region: Hong Kong
---

# 25ml capacity Ground glass stopper Borosilicate glass 25ml Specific Gravity Bottle for Physics - Relative Density

**Brand:** onlinesciencemall
**Price:** HK$38
**Availability:** ❌ Out of Stock

## Summary

> 🔍 Measure with confidence and style!

## Quick Answers

- **What is this?** 25ml Specific Gravity Bottle for Physics - Relative Density by onlinesciencemall
- **How much does it cost?** HK$38 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/33980506-25ml-specific-gravity-bottle-for-physics-relative-density)

## Best For

- onlinesciencemall enthusiasts

## Why This Product

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

## Key Features

- • **Secure Seal:** Features a ground glass stopper to prevent leaks.
- • **Versatile Use:** Perfect for physics experiments and educational purposes.
- • **Durable Design:** Crafted from high-quality borosilicate glass for longevity.
- • **Sleek & Professional:** Ungraduated design for a clean, modern look.
- • **Precision Measurement:** Unlock the secrets of density with ease!

## Overview

The 25ml Specific Gravity Bottle is an essential tool for accurate density measurements in physics. Made from durable borosilicate glass, it features a secure ground glass stopper and an ungraduated design, making it ideal for both educational and professional settings.

## Description

Sometimes referred to as a pyknometer or a pycnometer, which comes from the Greek word for "dense", a specific gravity bottle is something that is used to determine the density of a liquid. Made of glass, the uncalibrated bottles have a close-fitting ground glass stopper which features a capillary tube in the middle to allow any air bubbles to escape.  It helps to facilitate the accurate measurement of a density, which can then be referenced to an appropriate working fluid, such as water or mercury, using an analytical balance. From those measurements, one can then calculate what the relative density of the liquid is.

## Features

- Facilitates density measurements
- Made of borosilicate glass
- Has ground glass stopper
- Ungraduated
- Holds up to 25ml of liquid

## Product Details

- **Material:** Glass
- **Capacity:** 25 Milliliters
- **Brand:** OnlineScienceMall
- **Bottom Shape:** Round
- **Manufacturer:** OnlineScienceMall

## Images

![25ml Specific Gravity Bottle for Physics - Relative Density - Image 1](https://m.media-amazon.com/images/I/91mLUDZ708L.jpg)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-15*