The Reagent Bottle, Narrow Mouth (Product Code: SLE/GBO/09) is a clear borosilicate glass storage bottle closed with a pressed flat stopper, used to keep stock solutions, distilled water and prepared liquid reagents on the laboratory shelf. Its narrow neck limits evaporation and gives a controlled pour, which is why this pattern is a staple of borosilicate glassware in India’s school, college and research laboratories. It is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, in five capacities from 125 ml to 2000 ml.
| Parameter | Detail |
|---|---|
| Mouth | Narrow mouth |
| Closure | Pressed flat stopper |
| Material | Borosilicate glass |
| Colour | Clear |
| Heat resistance | Heat resistant |
| Chemical resistance | Chemical resistant |
| Capacities | 125 ml, 250 ml, 500 ml, 1000 ml, 2000 ml |
A typical chemistry laboratory keeps its dilute acids, alkalis, salt solutions and indicator stocks in narrow-mouth reagent bottles. The 1000 ml and 2000 ml sizes are used in the preparation room for bulk stock, while 125 ml, 250 ml and 500 ml bottles are placed on student benches or reagent racks so that each group has its own supply. Clear glass lets staff see at once whether a solution has turned cloudy, changed colour or dropped to a low level.
Fill the bottles through a funnel to avoid wetting the neck, and wipe the neck before inserting the stopper. Label each bottle with the contents, concentration and date. Stoppers that stay in contact with strong alkali solutions can stick, so rinse spills from the neck promptly; a plastic-stoppered bottle may be more convenient for such solutions. Institutions stocking a new reagent shelf often buy all five sizes from one laboratory glassware supplier in India so that the bottles match.
ScienceLab is the brand name used by Jain Scientific Equipments Private Limited, a laboratory equipment maker based in Ambala, Haryana. The company produces glassware, apparatus and teaching aids for educational and scientific institutions and serves buyers in India and international markets. Company details are on the ScienceLab profile page.
Items that complete a reagent storage set-up built around narrow-mouth bottles:
More storage options are listed in the Glassware Bottles category.
Which capacities are made?
125 ml, 250 ml, 500 ml, 1000 ml and 2000 ml. You can combine sizes in a single order.
What kind of closure does it have?
Each bottle comes with a pressed flat stopper. If you need details of the stopper material for a particular chemical, please contact us.
Should I choose a narrow or wide mouth bottle?
Narrow mouth bottles are intended for liquids because they pour steadily and reduce evaporation. For solids, a wide-mouth reagent bottle is easier to fill and empty with a spatula.
Can the bottles be washed in hot water or dried in an oven?
The borosilicate glass is heat resistant, so hot washing and oven drying of the empty bottle are practical. Never heat a bottle with the stopper in place, and avoid sudden temperature changes.
What details should a school or college include in a quotation request?
The quantity of each size, the delivery address and any related items such as funnels or dropping bottles, so that everything can be quoted together.
Is bulk or export supply possible?
Yes. We supply institutions in India and international markets; send your requirement through the contact page.
For a quotation on the Reagent Bottle, Narrow Mouth, write to us via the contact page or add it to the enquiry cart with the sizes you need.
Last updated: 24 September 2026