Eisco Labs
| SKU
CH1972C
Class A Borosilicate Glass Volumetric Flask with Individual Certificate
⚠️ 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
$17.09
Sale price
Regular price
Low Stock (1)
- Free US Shipping $100+ 30 Day Free Returns
Product Description
Product Description
This 25mL Class A volumetric flask is made from heavy-duty borosilicate 3.3 glass with a tolerance of ±0.03mL per ASTM E288 standards. Features a single graduation mark and is fitted with a chemical and heat resistant 10/19 polypropylene cap. The flask stands 4.4 inches tall with a 1.5-inch bottom diameter and 0.5-inch neck diameter. Calibrated to contain. Includes individual work certificate.
Autoclavable with superior chemical durability and thermal shock resistance. Heat tolerances include a Strain Point of 515°C, Annealing Point of 565°C, and Softening Point of 820°C. Suitable for professional laboratories and science classrooms.
Specifications
Specifications
- Material: 3.3 Borosilicate Glass
- Class: Class A
- Capacity: 250 ml
- Stopper: Polypropylene (10/19)
- Tolerance: ±0.120 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): 1.50" × 1.50" × 4.40" (3.81cm × 3.81cm × 11.2cm)
- Weight: 0.10 lbs (45g)
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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