Technical Product Manuals (PDF Format)

PDF Downloads

Chemglass Vacuum Conversion Chart For more detailed information please see the PDF download.

FILTER APPARATUS (FRIT INFORMATION) For information on diameter and permeability of rigid porous filters for laboratory use. PDF download.

CG-1590 - CG-1596 Dewar Flasks For information on testing and using Dewar Evacuated Flasks. PDF download.

CG-1318 Rotary Evaporator Vial Adapter For information on how to choose the correct black connector. PDF download.

	CGQ-0600, CGQ-0620, CGQ-0640, CGQ-0660 For information on Quartz specifications for Quartz Plates. PDF download.
	CG-3501, CG-3503, CG-3505, CG-3506-N, CG-3508-N For information on thermometers: Reuniting Separated Mercury and Organic Thermometers. PDF download.

Process Reactor Information

	Technical Information for Chemglass Large Scale Process Reactors, 10-50 Liter. PDF download.
	Time to Temperature Chart for Reactor Cooling/Heating Times Using Huber Circulators, 1-50 Liter. PDF download.

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Tech Notes

 

Glass Properties
All Chemglass brand glassware meets ASTM specification E438, Type 1, Class A, and is made from Kimble Kimax or Schott Duran glass. Specifications for this glass is as follows:
Maximum Short time use temperature	500°C
Annealing Point	560°C
Softening Point	815°C
Working Temperature	1270°C
Linear Coefficient of Expansion	32.5 x 10-7 / °C
Refractive Index	1.473

Round Bottom Flask Diameters
Capacity mL Diameter mm 5 25 10 31 15 35 20 38 25 42 50 48 100 60 125 65 200 76 250 83 300 87	Capacity mL Diameter mm 500 102 1000 130 2000 161 3000 185 5000 221 6000 236 10000 279 12000 295 22000 350 50000 457 72000 520

Standard Dimensions for Full-Length Interchangeable Taper-Ground Joints
Joint size Number	Approximate Diameter at small end mm	Approximate Length of Ground Zone mm	Diameter at large End of Ground Zone mm
7/25	5	25	7.5
10/30	7	30	10.0
12/30	9.5	30	12.5
14/35	11	35	14.5
19/38	15	38	18.8
24/40	20	40	24.0
29/42	25	42	29.2
34/45	30	45	34.5
40/50	35	50	40.0
45/50	40	50	45.0
50/50	45	50	50.0
55/50	50	50	55.0
60/50	55	50	60.0
71/60	65	60	71.0
103/60	97	60	103.0

Standard Dimensions for Medium-Length Interchangeable Taper-Ground Joints
Joint size Number	Approximate Diameter at small end mm	Approximate Length of Ground Zone mm	Diameter at large End of Ground Zone mm
5/12	3.8	12	5.0
7/15	6.0	15	7.5
10/18	8.2	18	10.0
12/18	10.7	18	12.5
14/20	12.5	20	14.5
19/22	16.6	22	18.8
24/25	21.5	25	24.0
29/26	26.6	26	29.2
34/28	31.7	28	34.5
40/35	36.5	35	40.0

Standard Dimensions for Short-Length Interchangeable Taper-Ground Joints
Joint size Number	Approximate Diameter at small end mm	Approximate Length of Ground Zone mm	Diameter at large End of Ground Zone mm
7/10	6.3	10	7.0
10/10	9.0	10	10.0
14/10	13.5	10	14.5
24/12	22.8	12	24.0
29/12	28.0	12	29.2
34/12	33.3	12	34.5
40/12	38.8	12	40.0
45/12	43.8	12	45.0
50/12	48.8	12	50.0
55/12	53.8	12	55.0
60/12	58.8	12	60.0
71/15	69.5	15	71.0