Still Head Plain, with thermometer socket B14, Cone size to fit flask 34/35 & to fit condenser 19/26
SKU CH0848E
Socket: S, Cone: C, Condenser: Co
- Description
- 3.3 Boro Glass Specs
- Glassware Sell Sheet
- Made of high quality, chemical resistant borosilicate 3.3 glass
- Standard taper outer joint 14/23 at top to accept screw thread
- adapter or thermometer pocket
- Standard taper inner joint at bottom for connection to a flask
- Standard taper inner joint at side for connection to a condenser
- Autoclavable at 121 C
Thermal Properties
Property | Value |
---|---|
Coefficient of Linear Expansion | 32.5 x 10-7 / °C |
Strain Point | 515°C |
Annealing Point | 565°C |
Softening Point | 820°C |
Specific Heat | 0.2 |
Thermal Conductivity (Cal/cm³°C/Sec) | 0.0027 |
Chemical Durability
Contact Chemical | Duration (hours) | Loss in weight (mg/m²) |
---|---|---|
Water distilled at 100°C | 6 | 10 |
Water vapour steam at 121°C | 1 | 75 |
Acid HCl | 6 | 100 |
80% H2SO4 at 130°C | 12 | 140 |
Alkali -1N solution of Na2CO3 boiling | 6 | 4000 |
Isotonic infusion Fluids - NaCl (0.85%) at 121°C | 2.5 | 70 |
Isotonic infusion Fluids - Glucose (5%) at 121°C | 2.5 | 50 |