hi, are these food safe? such as for oil or other liquid?

These seal well, and I can't think of any food-oriented liquid that would pose a threat to the plastic material. All bets are off though, for (1) harsh chemicals or (2) pressurized contents, e.g., from fermentation, carbonation, etc.

Is there a rubber seal inside the cap?

No rubber seal. Instead, the top of the bottle fits tightly into a ring on the underside of the cap. The cap is one-piece and made of slightly stretchy plastic. The result is a good seal. For a larger example, this works the same way as the caps on Gatorade bottles.

what type of plastic is this? What is the recycle code for the tube and the cap?

I don’t know what type(s) of plastic the vial or the cap are made of. There are no markings on the vial. This code appears inside the cap: BS●12

Do you receive 50 lids and 50 tubes or 25 of each (25 lids and 25 tubes)?

hello,you receive 50 lids and 50 tubes ,thank you.

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5ml Plastic Test Tubes Small Bottle Vial Storage Vial Storage Container for Lab -50pcs

产品编号: 166672901

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🔬clear plastic for easy sample visibility

🧪5ml precise capacity

❄️low-temp resistant storage

描述

🧬 Elevate your sample game with sleek, clear, and compact test tubes!

COMPACT 5 ML CAPACITY - Perfectly sized for precise sample storage without bulk
CRYSTAL CLEAR DESIGN - Transparent tubes ensure instant visual identification
LAB GRADE DURABILITY - Trusted in hospitals, schools, and research labs for consistent performance
VERSATILE STORAGE SOLUTION - Ideal for powders, beads, oils, and more in labs or creative projects
RELIABLE SEAL NON SCREW CAP - Secure lid keeps contents safe while allowing quick access

These 5ml plastic test tubes feature clear bodies and white snap-on lids, designed for versatile storage of solids, powders, and liquids. Measuring approximately 4 x 1.5 cm, they offer reliable sealing suitable for low-temperature environments, making them essential for labs, hospitals, and educational settings. Note: lids are snap-on, not screw caps.

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