Round Bottom Flask

Round Bottom Flask 1.Short Neck 2.With beaded rim 3.Have a low coefficient of expansion

Laboratory Glasswares

Introduction:

  Round Bottom Flask,Short Neck With Beaded Rim

The flask made of borosilicate glass with permanent graduations. They have a low coefficient of expansion and are thermal shock resistant.

Features:

High-borosilicate glass: BJTY glass is accord with ISO3585 and ASTM E438 level I A standard for the coefficient of expansion of 3.3 high-borosilicate glass.

BJTY glass with the best chemical stability, low expansion coefficient, can process performance and high temperature resistant impact as the main characteristics, and has a strong resistance to water, acid and alkali, such as performance, and become a laboratory instruments, chemical corrosion resistant glass equipment and heat-resistant glass vessels products are the most ideal material

Chemical Composition:

SiO2:           81%

B2O3:         13%

R2O:            4%

Al2O3 :        2%

Type: high-borosilicate glassColor: colorless, transparentChemical properties:

water resistance: grade 1;

Acid performance: grade 1;

Alkalis: A2 class

Thermal expansion coefficient:

(0-300 °C) 3.3 10-6 K-1

Annealing point (°C) : 560Softening point (°C) : 820Density (g/cm3) : 2.23

Specifications:

Model  NO.

Capacity

Size

Neck O.D

Flask O.D

Pack quantity

20408 02 -50	50	84(H)	19	52
20408 02-100	100	102(H)	22	64
20408 02-250	250	130(H)	28	86
20408 02-500	500	165(H)	34	110
20408 02-1L	1000	204(H)	40	136
20408 02-2L	2000	255(H)	42	170
20408 02-3L	3000	294(H)	49	195
20408 02-5L	5000	345(H)	58	230
20408 02-10L	10000	420(H)	70	280
20408 02-15L	15000	465(H)	78	320

Round Bottom Flask