Narrow neck Erlenmeyer flask EFN3-500-008

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Graduated. Made of borosilicate glass LBG 3.3. According to DIN 12380, ISO 1773

Capacity500 ml
Ø base (mm)105
h (mm)175
Ø inner mouth (mm)30
Pcs per box8


SKU: H50443IN Category:


Narrow neck Erlenmeyer flask EFN3-500-008


Product: Erlenmeyer flask, narrow neck

Description: Graduated. Made of borosilicate glass LBG 3.3. According to DIN 12380, ISO 1773

PACKING Type: Carboard box


LBG 3.3 is a borosilicate glass with a minimum content in silica of 80% and a low expansion coefficient (3.3•10-6 K-1) included in the 3.3 borosilicate group, as defined in ISO 3585 standard.

It is used in products where chemical and mechanical resistance is to be combined with resistance to sudden temperature changes.

This particular combination of properties makes this type of glass the most used in labware.

Physical and chemical properties

Linear expansion coefficient (@ 20/300 ºC): 3.3•10-6 K-1

Strain point: 520 ºC

Annealing point: 560 ± 10 ºC

Softening point: 820 ± 10 ºC

Density: 2.23 ± 0.02 g/cm3

Hydrolytic resistance (according to ISO 719, water at 98 ºC): Class 1

Hydrolytic resistance (according to ISO 720, water at 121 ºC): Class 1

Resistance to acids (according to ISO 1776, DIN 12116): Class 1

Resistance to alkalis (according to ISO 695): Class 2

Typical composition

80.4% in weight SiO2

13.0% in weight B2O3

4.2% in weight Na2O

2.4% in weight Al2O3



In March 2006, we launched our first catalog in Spain with about 10 pages and 200 references of laboratory glassware (beakers, flasks, pipettes, test tubes, etc.) following three commitments: “prices always low”, “fast delivery” and “satisfied or your money back”. That first catalog was followed by another, and another, and so we have today more than 4000 references of material, consumables, equipment and laboratory chemicals. In addition to our own subsidiary in France, we developed a network of distributors in more than 50 countries. We are now more than 40 employees, having several thousands of active clients and sales above 7 million euros. Today, we are proud of being committed to the same principles with which we started this company. We dedicate all our efforts so that our customers can acquire laboratory supplies at fair prices, with a fast delivery and receiving from us the same treatment that we would like to receive from our supplier. OUR MISSION Provide products and services for laboratories around the world at fair prices OUR VISION To be a leading supplier of laboratory equipment

Additional information

Weight.100 kg
CapacityØ base (mm)h (mm)Ø inner mouth (mm)Pcs per box
500 ml105175308