Eisco Labs
| SKU
CH1952E
Class A Graduated Borosilicate Glass Volumetric Flask with Polypropylene Stopper
⚠️ WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
Regular price
$14.99
Sale price
Regular price
$14.99
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Product Description
Product Description
This Eisco Labs 50mL Volumetric Flask is made from borosilicate 3.3 glass and meets Class A tolerance (±0.06mL). The flask features a single white graduation mark and includes an interchangeable 12/21 polypropylene stopper.
Class A accuracy ensures reliable solution preparation for titrations and analytical work. The polypropylene stopper provides a chemical-resistant seal. Borosilicate construction offers excellent durability. Suitable for professional laboratories and chemistry classrooms.
Specifications
Specifications
- Material: 3.3 Borosilicate Glass
- Class: Class A
- Capacity: 50 ml
- Stopper: Polypropylene (12/21)
- Tolerance: ±0.060 ml
- Graduation: yes
- Thermal Properties (Flask)
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
Glucose (5%) at 121°C
2.5
50
- Dimensions (L × W × H): 1.90" × 1.90" × 5.00" (4.83cm × 4.83cm × 12.7cm)
- Weight: 0.20 lbs (91g)
Shipping & Returns
Shipping & Returns
SHIPPING
Ships from Rochester, NY. Orders received by 1:00 PM EST M-F typically ship same business day. Free US shipping on orders over $100. Expedited options available.
RETURNS
30-day return window. Unused items receive a full refund; used items are eligible for store credit or exchange. Return shipping is paid by the customer. Clearance items are final sale. Defective products? Contact us directly.
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