Laboratory Glassware Starter Set, 9-Piece Borosilicate Glass

• Material: 3.3 Borosilicate Glass
• Beakers

Capacity: 50 ml, 100 ml, 250 ml

• Graduations: 25 ml, 25 ml, 50 ml
• Erlenmeyer Flasks

Capacity: 50 ml, 100 ml, 250 ml

• Graduated Cylinders

Class: Class A

• Capacity: 10 ml, 50 ml, 100 ml
• Graduation: 0.2 ml, 1.0 ml, 1.0 ml
• Tolerance: ±0.10 ml, ±0.25 ml, ±0.50 ml
• Guard: Yes
• 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

• Dimensions (L × W × H): 19.00" × 11.00" × 9.00" (48.3cm × 27.9cm × 22.9cm)
• Weight: 2.60 lbs (1.18kg)