Flask With Three Necks
Manufactured from 99.99% fused silica, it offers exceptional thermal stability, chemical resistance, and optical clarity, making it ideal for advanced research in pharmaceuticals, materials science, and catalysis.
Description
Features
Premium Material Properties
✔ Ultra-High Purity (99.99% SiO₂) – Minimizes contamination in sensitive reactions
✔ Thermal Shock Resistance – Withstands rapid temperature changes from -200°C to +1200°C
✔ Chemical Inertness – Resistant to acids, alkalis, and organic solvents (except HF)
✔ UV Transparency – >90% transmittance from 190nm to 2500nm
Precision Design
✔ Three Standard Joints – Typically 24/29, 19/22, or 14/20 (custom sizes available)
✔ Optimal Geometry – Round bottom for uniform heating, with reinforced neck joints
✔ Smooth Inner Surface – Prevents material adhesion and simplifies cleaning
Enhanced Functionality
✔ Compatible with – Reflux condensers, thermocouples, gas inlets, and stirrers
✔ Custom Options – Additional ports, threaded fittings, or ground-glass stoppers
✔ Scalable Sizes – 50mL to 5000mL standard capacities
Applications
Chemical & Pharmaceutical Research
✔ Drug Intermediate Synthesis
✔ Nanomaterial Preparation
✔ Polymerization Reactions
Energy & Environmental Science
✔ CO₂ Reduction Studies
✔ Water Splitting Experiments
✔ Pollutant Degradation Testing
Advanced Materials Development
✔ MOF & Perovskite Synthesis
✔ Quantum Dot Fabrication
✔ High-Purity Inorganic Compounds
Properties
|
Physical Properties |
Values |
|
Purity |
＞99.99% |
|
Density |
2.2g/cm3 |
|
Transparency |
＞90% |
|
Mohs Hardness |
5.5--6.5 |
|
Deformation Point |
1280℃ |
|
Softening Point |
1750℃ |
|
Annealing Point |
1250℃ |
|
Specific Heat (20 - 350°C) |
670J/kg.℃ |
|
Thermal Conductivity (20°C) |
1.4W/m.℃ |
|
Heat Conductivity (w/m.k,1000 ℃ ) |
1.0-1.2 |
|
Refractive Index |
1.4585 |
|
Coefficient of Thermal Expansion |
5.510 -7cm/cm.℃ |
|
Hot - working Temperature |
1750--2050℃ |
|
Short - term Service Temperature |
1450℃ |
|
Long - term Service Temperature |
1100℃ |
|
Chemical Properties |
Values |
|
Acid resistant |
Strong Acid(except HF),Strong alkali, organic solution |
|
High temperatures Corrosion resistant |
Excellent |
|
Metal Impurity Content |
＜5 ppm |
|
Electrical Properties |
Values |
|
Resistivity |
7107Ω.cm |
|
Insulation Strength |
250~400Kv/cm |
|
Dielectric Constant |
3.7~3.9 |
|
Dielectric Absorption Coefficient |
＜410-4 |
|
Dielectric Loss Coefficient |
＜110-4 |
|
Mechanical Properties |
Values |
|
Compressive Strength |
1100MPa |
|
Bending Strength |
67MPa |
|
Tensile Strength |
48MPa |
|
Poisson's Ratio |
0.14~0.17 |
|
Young's Modulus |
72000MPa |
|
Shear Modulus |
31000MPa |
Typical size for flask
|
Three-neck Flask(Round bottom straight mouth) |
||||
|
Volume/ml |
Center opening OD/mm |
Side opening OD/mm |
Body OD/mm |
Full height/mm |
|
250 |
25 |
18 |
85 |
145 |
|
500 |
29 |
20 |
105 |
175 |
|
1000 |
36 |
24 |
140 |
220 |
|
2000 |
46 |
27 |
175 |
265 |
|
3000 |
50 |
30 |
200 |
300 |
|
5000 |
56 |
32 |
235 |
360 |
|
10000 |
65 |
35 |
297 |
440 |
|
Three-neck Flask (Round bottom bevel) |
||||
|
Volume/ml |
Center opening OD/mm |
Side opening OD/mm |
Body OD/mm |
Full height/mm |
|
100 |
24 |
14 |
64 |
115 |
|
25 |
25 |
18 |
85 |
145 |
|
500 |
29 |
20 |
105 |
175 |
|
1000 |
36 |
24 |
140 |
220 |
|
2000 |
46 |
27 |
175 |
265 |
|
5000 |
56 |
32 |
235 |
360 |
|
10000 |
65 |
35 |
297 |
440 |
|
Four-neck Flask |
||||
|
Volume/ml |
Center opening OD/mm |
Side opening OD/mm |
Body OD/mm |
Full height/mm |
|
250 |
25 |
18 |
85 |
140 |
|
500 |
29 |
20 |
105 |
175 |
|
1000 |
36 |
24 |
140 |
215 |
|
2000 |
46 |
27 |
175 |
260 |
|
5000 |
56 |
32 |
235 |
365 |
|
10000 |
65 |
35 |
297 |
438 |
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