Eisco Labs
| SKU
CH0236E
Class B Borosilicate Glass Burette with Glass Key Stopcock
⚠️ 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
$29.49
Sale price
Regular price
$29.49
Backorder
- Free US Shipping $100+ 30 Day Free Returns
Product Description
Product Description
This 10mL burette is manufactured from precisely bored borosilicate 3.3 glass with a glass key stopcock for fine flow control. The burette meets Class B accuracy per DIN ISO 385, with a tolerance of ±0.05mL and 0.05mL graduation subdivisions. Chemical-resistant blue printing ensures long-lasting readability.
The burette measures 17" long and 0.5" in diameter. It is calibrated for delivery, making it suitable for titration and other volumetric analysis procedures where precise liquid dispensing is required.
Borosilicate glass heat tolerances: Strain Point 515°C, Annealing Point 565°C, Softening Point 820°C.
Specifications
Specifications
- Material: 3.3 Borosilicate Glass
- Class: Class B
- Capacity: 10 ml
- Graduation: 0.05 ml
- Tolerance: ±0.05 ml
- Stopcock: Glass Key
- Thermal Properties
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
- Weight: 0.40 lbs (181g)
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.
Payment & Security
Payment methods
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