Test Tube Soda Lime Glass - Without Rim
SKU
Original price
R 2.50
-
Original price
R 6.00
Original price
R 2.50
R 2.50
-
R 6.00
Current price
R 2.50
Availability:
995 in stock, ready to be shipped
Availability:
999 in stock, ready to be shipped
Availability:
789 in stock, ready to be shipped
Soda-lime glass test tubes without a rim are cost-effective, general-purpose laboratory vessels designed for routine tasks that do not involve extreme thermal stress. The rimless (straight-cut) design is preferred for smooth handling, easy cleaning, and more efficient plugging or storage in high-throughput environments.
Key Features
- Material: Soda-lime glass (also known as soda-lime-silica or "soft" glass), composed primarily of silica, soda, and lime.
- Thermal Properties: Moderate heat resistance; suitable for gentle warming (e.g., in a water bath) but not recommended for direct exposure to open flames due to a high coefficient of thermal expansion.
- Chemical Resistance: Adequate for neutral and mild acidic/alkaline solutions, but more susceptible to corrosion from aggressive chemicals compared to borosilicate glass.
- Design: Features a round bottom and a smooth, rimless edge (no beaded rim).
| Dimensions (Diameter x Length) | Approx. Capacity | Common Use Case |
|---|---|---|
| 10 x 75 mm | 3–4 mL | Small sample storage |
| 12 x 75 mm | 5 mL | Routine clinical testing |
| 13 x 100 mm | 7–10 mL | Standard medical laboratory size |
| 16 x 100 mm | 12–15 mL | General mixing and chemical analysis |
| 16 x 150 mm | 18–20 mL | Larger volume sample processing |
| 25 x 150 mm | 50–55 mL | Chemical reactions and larger storage |
Applications
- Educational Settings: Ideal for school and university labs due to their low cost and suitability for non-critical experiments.
- Microbiology: Small rimless tubes (e.g., 50 x 6 mm) are often used as Durham tubes to detect gas production in culture media.
- High-Throughput Labs: Used for routine sample collection, temporary storage, and simple mixing where glass is required but expensive borosilicate is not necessary.
- Industrial QC: Applied in quality control testing for non-corrosive liquids.
Comparison: Soda-Lime vs. Borosilicate
While soda-lime glass is more affordable and easier to manufacture, it lacks the advanced durability of 3.3 Borosilicate glass.
- Durability: Soda-lime is less scratch-resistant but often has better impact resistance than the more brittle borosilicate.
- Thermal Shock: Borosilicate can transition from extreme cold to high heat without breaking; soda-lime is prone to cracking under rapid temperature changes.
Rubber Stopper
- 125 x 16mm test tube can be used with RS7 rubber stopper. RS7 is available as one hole, two hole or Solid.
- 150 x 16mm test tube can be used with RS7 rubber stopper. RS7 is available as one hole, two hole or Solid.
- 150 x 24mm test tube can be used with RS13 rubber stopper. RS13 is available as one hole, two hole or Solid.
Specifications:
- Material: Soda-lime Glass
- Design: Round bottom and a smooth, rimless edge (no beaded rim)
- Brand: NONE
- Product of China