Filtering Flasks, Borosilicate Glass
Product Code : EL-LGI-13276
Eduscope India is a leading Filtering Flasks, Borosilicate Glass
Quick Answer: the Filtering Flasks, Borosilicate Glass are heavy wall vacuum flasks with a heavy-duty rim and a bolt neck fitted with tubulation, graduated in durable white enamel rather than etched markings — a genuine piece of borosilicate glassware India labs specify when they need Type 1, Class A Borosilicate 3.3 glass with a documented chemical composition.
This chemistry lab glassware India flask is made from low-alkali glass running roughly 81% silica, 13% boric oxide, 4% sodium oxide and 2% aluminum oxide, virtually free of the magnesia-lime-zinc group and containing only trace heavy metals — the same low-expansion formulation used across the company's Borosilicate 3.3 glassware line, chosen for its resistance to thermal shock and chemical attack.
| Specification | Value |
|---|---|
| Wall construction | Heavy wall, heavy-duty rim |
| Neck | Bolt neck with tubulation |
| Graduations | Printed in durable white enamel |
| Glass type | Borosilicate 3.3 (Type 1, Class A) |
| Typical composition | ~81% silica, 13% boric oxide, 4% sodium oxide, 2% aluminum oxide |
| Alkali content | Low alkali; virtually free of magnesia-lime-zinc group |
| Heavy metals | Trace only |
EduScope India's borosilicate glassware, these filtering flasks included, is exported to laboratories across Nepal, Bangladesh, Sri Lanka and Bhutan, part of the company's presence across South Asia.
EduScope India also supplies graduated filtering flasks like this one in bulk to teaching-lab networks and CSR-funded science programs that need consistent, chemically-documented glassware across every classroom or testing bench.
A close relative of our Filtering Bottles, Borosilicate Glass, distinguished by its graduated bolt-neck design. See more of our Lab General Instruments range.
Request a Quote: Contact EduScope India for pricing, lead times and bulk-order terms on the Filtering Flasks, Borosilicate Glass — get in touch here.
