Description

SGC LABS® 250ml Round Bottom Flask with Socket B19 —
Precision Borosilicate Laboratory Glassware

SGC LABS® manufactures the 250ml Round Bottom Flask with B19 Socket Joint
using high-grade borosilicate glass 3.3, engineered to meet the rigorous
demands of modern laboratory environments. With over 23 years of manufacturing
expertise in Ambala, India, each flask undergoes strict quality inspection
before dispatch.

── PRODUCT OVERVIEW ──

The round bottom design ensures optimal heat distribution, making this flask
the preferred choice for distillation setups, rotary evaporation, reflux
condensation, and vacuum operations. The B19 precision ground glass socket
provides a perfectly matched, interchangeable fit with all B19 cone-fitted
laboratory apparatus.

── KEY FEATURES ──

▸ Material: Borosilicate Glass 3.3 — low thermal expansion coefficient
(3.3 × 10⁻⁶/K), high resistance to thermal shock, acids, and alkalis

▸ Socket Joint: Standard Taper B19 (ISO 383) — precision ground for
leak-proof, airtight interchangeable connection

▸ Capacity: 250ml nominal volume

▸ Wall Thickness: Uniform throughout — safe for direct flame, heating
mantle, and oil bath applications

▸ Finish: Smooth fire-polished rim, clean ground joint surface,
optically clear glass

▸ Temperature Range: Withstands up to 500°C (short-term direct flame)

▸ Standards: Compliant with ISO 4797, DIN 12347, USP Type 1 Glass

── APPLICATIONS ──

▸ Distillation & Fractional Distillation setups
▸ Rotary Evaporation (Rotavap) assemblies
▸ Reflux condensation reactions
▸ Vacuum filtration and vacuum distillation
▸ Organic & inorganic synthesis
▸ Pharmaceutical API research
▸ University & college chemistry laboratories
▸ Industrial quality control labs

── TECHNICAL SPECIFICATIONS ──

| Parameter | Value |
|——————–|——————————|
| Capacity | 250 ml |
| Socket Joint | B19 (Standard Taper ISO 383) |
| Glass Type | Borosilicate 3.3 |
| Thermal Expansion | 3.3 × 10⁻⁶ / K |
| Max Temperature | 500°C (direct flame) |
| Standard | ISO 4797 / DIN 12347 |
| OEM Available | Yes |
| Export | Worldwide from India |

── WHY CHOOSE SGC LABS®? ──

▸ ISO 9001:2015 Certified Manufacturer
▸ 23+ Years manufacturing experience — established 2003
▸ Bulk OEM & private label orders accepted
▸ Export-quality packaging for safe international shipping
▸ Competitive USD pricing for global distributors
▸ Custom specifications available on request

── ORDERING INFORMATION ──

Available for single unit, bulk, and OEM orders.
Contact us for volume pricing, custom branding,
and export quotations in USD.

📧 info@labsglass.com
📞 +91 9996416935