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Woulf Bottle
Woulf Bottle (Product Code: SCL-738/114) is a 250 ml clear borosilicate glass bottle of the multi-necked Woulfe pattern, used to pass a gas through a liquid, to trap unwanted liquid between two pieces of apparatus, or to act as a small gas generator. With a tube fitted through each neck, a gas can enter below the surface of a washing liquid and leave from the space above it, so impurities or moisture are removed before the gas reaches the next stage. The glass is heat resistant and chemical resistant, making it suitable for acids, alkalis and drying liquids in school and college chemistry. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Product Code | SCL-738/114 |
| Capacity | 250 ml |
| Material | Borosilicate glass |
| Colour | Clear |
| Resistance | Heat resistant, chemical resistant |
| Purpose | Gas washing, drying and trapping; small-scale gas generation |
Typical Use
In a gas preparation, the bottle is placed between the generating flask and the collection vessel. Fill it partly with water to wash out acid spray, or with concentrated sulphuric acid to dry a gas, fit a long tube that dips below the liquid and a short outlet tube that stays above it, and let the gas bubble through. Used empty, the same bottle becomes a safety trap that catches liquid sucking back towards a pump or a hot flask. In schools without a Kipp generator, a Woulf bottle fitted with a thistle funnel in one neck and a delivery tube in another serves as a simple generator for hydrogen or carbon dioxide from reactions that need no heating.
Check before use that the outlet path is open, as gas must never be passed into a fully closed bottle. Seat stoppers firmly, check every joint for leaks with a little soap solution before adding the reagents, and keep the long tube's end below the liquid level throughout. After use, empty and rinse the bottle promptly, particularly when it has held concentrated acid.
Manufacturer
ScienceLab is the trading name of Jain Scientific Equipments Private Limited, a registered MSME manufacturer (Udyam UDYAM-HR-01-0003714) based in Ambala, Haryana, making laboratory glassware and apparatus for education and research. Export orders are shipped under Importer-Exporter Code AAECJ8618A issued by the DGFT, serving buyers in India and international markets. See the company profile for details.
Related Chemistry Lab Equipment
To set up a washing bottle, trap or generator, buyers usually add:
- Rubber stoppers with holes of different diameters — for fitting tubes into the necks; choose sizes to suit.
- Delivery Tube — carries gas into and out of the bottle.
- Rubber Tubing — flexible links to the generator and collection vessel.
- Gas Washing Bottle — a dedicated alternative for washing gases.
- Vacuum Pump, Hand — the bottle can act as a trap in front of the pump.
Explore more gas apparatus in the Chemistry Lab category.
Frequently Asked Questions
What is the capacity?
The bottle holds 250 ml and is made of clear borosilicate glass.
How many necks does it have, and what size are they?
The number and size of the necks are not stated in this listing. Please confirm them with us through the contact page so you can order matching stoppers.
Are stoppers and tubes included?
The listing describes the bottle only. Stoppers, delivery tubes and tubing can be quoted with it on request.
Can it be used to generate a gas?
Yes, for reactions that run without heating, using a thistle funnel to add acid and a delivery tube to take the gas off.
Can the bottle be heated?
The glass is heat resistant, but a Woulf bottle is normally used at room temperature. Never heat it with all necks closed.
Do you ship to institutions outside India?
Yes. ScienceLab supplies schools, colleges and dealers in India and international markets; share the quantity and destination for a quotation.
Request a Quote
Send your quantity and any fittings you need through the contact page, or add Woulf Bottle (SCL-738/114) to the enquiry cart with stoppers and delivery tubes for a single quotation.
Last updated: 24 September 2026
