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Specific Gravity Measuring Bottle

Product Code : SCL-B-12571

Quick Answer: Specific Gravity Measuring Bottle, also called a pycnometer or density bottle, is a glass bottle with a capillary stopper used to find the density or relative density of liquids by weighing a known volume.

Last updated: October 2026

Key Features

Supplied with a stopper that has a fine capillary opening
Capillary lets excess liquid and trapped air escape
Compares sample density with water at the same temperature
Manual method using a balance, with no electrical parts

About This Product

The clean, dry bottle is weighed empty, filled with distilled water at the test temperature, stoppered so excess escapes through the capillary, wiped dry and weighed again. The same is repeated with the test liquid, and density or specific gravity is calculated from the masses. It teaches mass-volume-density relationships and can show density changes in salt, sugar or glycerol solutions.

Frequently Asked Questions

Q1. Why does the stopper have a capillary opening?
When the stopper is inserted, excess liquid and trapped air escape through the capillary, so the bottle holds the same defined volume each time it is filled.

For a quotation on the Specific Gravity Measuring Bottle, contact School Equipments India.

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Specific Gravity Measuring Bottle

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